HomeMy WebLinkAbout#15 - Zoning Text Amendment Landscape Standards1
STAFF REPORT
DATE: 12-3-2024
Regular
Motion
TO: City Council
FROM: HKGi Staff & Ashley Monterusso, City Planner
PRESENTED BY: HKGi Staff
AGENDA ITEM: Zoning Text Amendments - Landscaping
REVIEWED BY: Sophia Jensen, Senior City Planner
Jason Stopa, Community Development Director
BACKGROUND:
The City has initiated a zoning text amendment to Article VIII Environmental Performance
Standards to correct dated language, update standards, and clarify planting/plan standards.
ISSUE BEFORE THE CITY COUNCIL:
The City Council is being asked to make a determination on the proposed amendments.
PROPOSAL DETAILS:
Sections under review:
• 105.12.470 – Tree Preservation
• 105.12.480 – Landscape Requirements
ANALYSIS OF PROPOSALS:
Proposed language is underlined. Deleted language is shown with a strikethrough.
105.12.470 – Tree Preservation
Proposed Language:
a) Purpose. Within the City of Lake Elmo, trees and woodlands are considered a valuable asset to the
community. The City places a priority on protecting this asset and finds that it is in the best interest to
regulate the development and alteration of wooded areas within the community. All applicants shall comply
with all the provisions in the Zoning Code which address the preservation of existing significant trees,
including this section. All applicants shall demonstrate a good faith effort to maximize tree preservation
during the development review phase and shall avoid a mass-grading approach to site development where
possible. Applicants are encouraged to preserve all healthy trees of significant value even if the trees do not
meet the size requirements to be considered significant trees.
b) Definitions. The following words, terms and phrases, when used in this section, shall have the meanings
ascribed to them in this subsection, except where the context clearly indicates a different meaning:
Applicant means any person or entity submitting an application to the City for approval of a land use permit
including preliminary plat, final plat, conditional use permit, interim use permit, planned unit development,
variance or grading permit.
Common tree means and includes Ash, Aspen, Basswood, Catalpa, Elm, Hackberry, Locust, Poplar, Silver
Maple, Willow and any other tree not defined as a hardwood deciduous tree or a coniferous/evergreen tree.
2
Coniferous/evergreen tree means a wood plant, which, at maturity, having foliage on the outermost portion
of the branches year-round. Tamaracks are included as a coniferous tree species.
Construction area means any area in which construction activity has or is occurring.
Construction activity means any disturbance to the land that results in the movement of earth, the alteration
in the topography or existing soil cover (both vegetative and non-vegetative) that may result in accelerated
stormwater runoff, leading to soil erosion and movement of sediment into surface water or drainage systems.
Examples of construction activity may include clearing, grading, filling, excavating, building construction
and landscaping.
Construction damage means any action such as filling, scraping, trenching, or compacting the soil around
trees or wounding trees in such a manner that it may result in the eventual death of the tree.
Critical root zone (CRZ) means an imaginary circle surrounding the tree trunk with a radius distance of one
(1) foot per one (1) inch of tree diameter. E.g., a 20-inch diameter has a critical root zone with a radius of
twenty (20) feet.
Deciduous hardwood tree means a tree that loses its foliage or leaves annually such as Birch, Cherry,
Hickory, Ironwood, Hard Maples, Oak and Walnut.
Development means any activity or proposal that requires City approval of a preliminary plat, final plat,
building permit, demolition permit, conditional use permit, interim use permit, planned unit development,
variance or grading permit.
Diameter breast height (DBH) means the diameter of trees at breast height, measured 4 1/2 feet (54 inches)
above the ground.
Drip line means the farthest distance away from the trunk of a tree that rain or dew will fall directly to the
ground from the leaves or the branches of the tree.
Healthy tree means a healthy tree has:
1) A live top (live crown) that is greater than one-third (1/3) the total tree height;
2) Dead branches that make up less than fifteen percent (15 %) of the total crown;
3) Less than fifteen percent (15%) of the tree crown with missing branches;
4) Consistent growth of foliage throughout the live portion of the crown; and
5) A tree trunk with no open wounds that are greater than one-third (1/3) the diameter of the tree, with
no wounds in contact with the ground and no wounds that have soft, punky wood or other
indication of decay.
New development means all sites with construction activity or development that are not defined as redevelopment.
Nuisance tree means:
1) Any living or standing tree or part thereof infected to any degree with a shade tree disease (see Tree
disease below) or shade tree pest;
2) Any logs, stumps, branches, firewood or other part of dead or dying tree(s) infected with a shade
tree disease or shade tree pest unless properly treated; and
3) Any standing dead trees or limbs which may threaten human health or property.
Also included are noxious or invasive trees such as Amur Maple, Japanese Barberry, Russian Olive, Siberian Elm,
Buckthorn, Boxelder, and Cottonwood.
Ornamental tree means a small tree, usually less than thirty (30) feet in height at maturity, often planted for
ornamental characteristics such as flowers or attractive bark.
Redevelopment means a site with construction activity that creates new or replaces existing impervious surface,
3
buildings or structures on a parcel that is fully or partially occupied by buildings, structures, or other impervious
surfaces.
Tree disease or diseased means Dutch elm disease (Ophiostoma ulmi or Ophiostoma novo-ulmi), oak wilt
(Ceratocystis fagacearum) or any other tree disease of epidemic nature.
Tree pest means Emerald Ash Borer (Agrilus plannipenis), European elm bark beetle (Scolytus multistriatus), Native
elm bark beetle (Hylurgopinus rufipes) or any other tree pest with potential to cause widespread damage.
Significant tree means a healthy tree measuring a minimum of six (6) inches in diameter for hardwood deciduous
trees, nineteen (19) feet in height or eight (8) inches in diameter for coniferous/evergreen trees, or twelve (12) inches
in diameter for common trees, as defined herein.
Site means a parcel or area of land within which construction activity, development, or redevelopment occurs or is to
occur.
Specimen tree means a healthy, deciduous hardwood tree measuring equal to or greater than thirty (30) inches in
diameter breast height or a healthy coniferous/evergreen tree measuring equal to or greater than twenty-five (25) feet
in height.
Tree pPreservation pPlan means a plan prepared by a certified landscape architect licensed by the State of Minnesota
or forester indicating identifying all of the significant and specimen trees in the proposed development or parcel. A
Tree Preservation Plan must include a proposed site plan, a proposed grading plan including all custom graded lots, a
tree inventory that includes the size, species, and location of all significant trees proposed to be saved and removed on
the area of development, and the measures proposed to protect the significant and specimen trees that are to be saved.
The applicant shall have the tTree pPreservation pPlan superimposed on the proposed development grading plan.
Woodland evaluation report means a report prepared by a certified forester, landscape architect licensed by the State
of Minnesota, forester or land surveyor indicating the general location, condition, and species of significant trees on a
parcel planned for future development or grading activity. The report must demonstrate that there will be no impact to
existing significant trees as part of the development or grading activity. Finally, the report must include the measures
proposed to protect significant trees on the site.
c) Tree preservation standards for developing properties.
1) Applicability.
a. A tTree pPreservation pPlan, or suitable alternatives as determined by the City, shall be
submitted and approved by the City for the following activities:
1. New development or redevelopment in any Zoning District. A Tree Preservation
Plan shall be required as part of any new development, redevelopment, or
subdivision application.
2. Any grading or excavation project that results in the movement of greater than
400 cubic yards of material per acre of site per Lake Elmo Code Section
105.08.060.
3. If the applicant is able to demonstrate that the proposed development,
redevelopment, construction activity or grading activity includes no impact to the
significant trees on the site, then the applicant may be exempt from the
requirement to submit a Tree Preservation Plan. It is the responsibility of the
applicant to demonstrate that there are no impacts to significant trees through a
Woodland Evaluation Report or some other form of tree survey or study.
The Tree Preservation Plan shall reflect the applicant's best effort to determine the most
feasible and practical layout of lots, buildings, parking lots, driveways, streets, storage, storm
water management facilities and other physical features, so the fewest significant and
specimen trees are destroyed or damaged.
b. A Tree Preservation Plan is not required for the following activities:
1. The issuance of a development approval for the construction of a single-family
residence on an existing platted lot of record.
4
2. The harvesting of trees. For the purposes of this section, "harvesting" means
cutting or clearing trees for purposes relating to forestry operations, as defined in
Lake Elmo Code Section 105.12.110. "Harvesting" does not include the clearing
of land for purposes of development, even where the trees are sold for purposes of
creating lumber for related purposes.
3. Additions to single-family homes, general homes improvements and the
construction of accessory buildings (i.e., garages, sheds) on residential properties.
4. Home gardens or an individual's home landscaping, installation, repairs, or
maintenance work.
5. Tree removal related to public improvement projects and maintenance or repairs
to existing streets, roadways, sewers, parks, storm water facilities and utility
infrastructure.
6. Emergency removal of trees to protect the public health and safety or to alleviate
immediate dangers to life, limb, property, or natural resources.
7. Tree removal related to public improvement projects to restore or enhance
woodlands, savannas, or prairies.
8. Removal of dead or dying trees, unless those trees were planted as part of tree
replacement in which case the property owner shall replace such trees based on
the City-approved Tree Preservation Plan for the property.
9. Removal of nonnative trees that the City deems as nuisance or as an invasive
species.
2) Tree pPreservation pPlan. All applicants shall submit a Tree Preservation Plan prepared by a
certified forester or landscape architect licensed by the State of Minnesota in accordance with the
provisions of this section. The Tree Preservation Plan shall reflect the applicant's best effort to
determine the most feasible and practical layout of lots, buildings, parking lots, driveways, streets,
storage, storm water management facilities and other physical features, so that the maximum
amount of significant and specimen trees are preserved and protected from development and
construction.
3) During the review of an application for a building permit, grading permit, site plan approval,
planned unit development, conditional use permit, interim use permit, or preliminary plat, the City
will review the project and the Tree Preservation Plans according to in order to ensure that the Tree
Preservation Plan has the best available layout in order to preserve significant trees and to ensure
that the applicant used the best possible design to mitigate and minimize construction damage to
significant trees.
4) Tree pPreservation pPlan requirements. The tTree pPreservation pPlan shall be a separate plan
sheet(s) that includes the following information:
a. The name(s), certification(s), telephone number(s) and address(es) of the person(s)
responsible for tree preservation during the course of the development project.
b. Tree inventory. The Tree Preservation Plan must include a Ttree Iinventory through one
of the following methods:
1. Individual tree inventory. An individual tree inventory including an identification
system linked to metal field tags located four and one-half (4 1/2) feet from grade
on all significant trees must be identified on a plan sheet in both graphic and
tabular form.
2. Tree inventory sampling. In cases of sites with large tracts of significant trees, the
City may approve the use of a sampling inventory for all or portions of a site as an
alternative to an individual tree inventory. The sampling inventory must include
the methodology for sampling, identification ribbon around the perimeter of the
5
sampling areas, and metal field tags located four and one-half (4 1/2) feet from
grade on all significant trees in the sampling area. Within the sampling area, the
quantity, size, species, health and location of all significant trees must be
identified on a plan sheet in both graphic and tabular form. Based on sampling,
total estimates and locations of healthy significant trees shall be provided.
3. Combination tree inventory. With the approval of the city City, sites that include
both large tracts of significant trees and areas of individual significant trees may
utilize a combination of the individual and sampling inventory methods.
c. Trees that were planted as part of a commercial business such as a tree farm or nursery
do not need to be inventoried on an individual tree basis. A general description of the
trees and an outer boundary of the planted area must be provided. The burden of proof
shall be on the applicant to provide evidence to support the finding that the trees were
planted as part of a commercial business.
d. A listing of healthy significant trees inventoried in subsection (c)(3)b of this section.
Dead, diseased, nuisance or dying trees do not need to be included in the totals.
e. A listing of the healthy significant trees removed, identified by the metal field tag or
some other form of identification used in the tree inventory in subsection (c)(3)b of this
section.
f. A listing of the healthy significant trees to remain, identified by the metal field tag or
some other form of identification used in the tree inventory in subsection (c)(3)b of this
section.
g. Outer boundary of all contiguous wooded areas, with a general description of trees not
meeting the significant tree size threshold.
h. Locations of the proposed buildings, structures, or impervious surfaces.
i. Delineation of all areas to be graded and limits of land alteration and disturbance.
j. Identification of all significant trees proposed to be removed within the construction
area. These significant trees should be identified in both graphic and tabular form.
k. Measures to protect significant and specimen trees and City standard tree protection
detail.
l. Size, species, number and location of all replacement trees proposed to be planted on the
property in accordance with the Mitigation Plan, if necessary.
m. Signature of the person(s) preparing the plan.
5) Implementation. All new construction areas, development sites, and redevelopment sites shall be
staked, as depicted in the approved Tree Preservation Plan, and the required tree protection fencing
shall be installed and approved by the City’s Landscape Architect around the critical root zone
before land disturbance is to commence. The City has the right to inspect the site at any time for
compliance with the plan. No encroachment, land disturbance, trenching, filling, compaction, or
change in soil chemistry shall occur within the fenced areas protecting the critical root zone of the
trees to be saved.
6) Allowable tree removal. Up to thirty (30) percent of the diameter inches of significant trees on any
parcel of land being developed, redeveloped, graded, or proposed for construction activity may be
removed without having to adhere to the tree replacement requirements. Replacement according to
the tree replacement schedule is required when removal exceeds more than thirty (30) percent of
the total significant tree diameter inches. The following types of trees do not need to be included as
part of the tally of tree removals:
a. Dead, diseased, nuisance, or dying trees;
b. Trees that are transplanted from the site to another appropriate area within the City;
c. Trees that were planted as part of a commercial business, such as a tree farm or nursery
(subject to verification by the City); or
d. Trees that were planted by the current property owner. In making such a determination,
the City shall consider consistency of the age of the trees, any patterns in the location of
trees, historical aerial photography and evidence of intentional planting such as invoices,
formal planting plans or cost sharing agreements.
7) Mitigation plan.
6
a. In any new development, redevelopment, new construction area, or grading project
where the allowable tree removal is exceeded, the applicant shall mitigate the tree loss by
planting replacement trees in appropriate areas within the development in accordance
with the Ttree Rreplacement Sschedule.
b. The form of mitigation to be provided by the applicant shall be determined by the City.
c. The planting of trees for mitigation on residential projects shall be in addition to any
other landscape requirements of the City.
d. All trees, with the exception of ornamental trees, planted as landscaping on commercial
or mixed-use projects may be counted towards tree replacement requirements.
8) Tree replacement calculations. Thirty (30) percent of the total diameter inches of significant trees
on the site of new construction, new development, or redevelopment may be removed without
replacement. The applicant shall plant all required replacement trees on the site of the proposed
new construction, new development, or redevelopment. The following calculation procedure must
be used to determine tree replacement requirements:
a. Tally the total number of diameter inches of all significant trees on the site.
b. A calculation must be provided which breaks out the number of inches removed for
hardwood, evergreen/deciduous, and common trees. The thirty (30) percent removal
figure applies to each category individually and trees are replaced according to the Tree
Replacement Schedule in subsection (c)(8) of this section.
9) Tree replacement schedule. Tree removals over the allowable tree removal limit on the parcel or
site of new construction, new development, or redevelopment shall be replaced according to the
following schedule:
a. Common tree species shall be replaced with new trees at a rate of one-fourth (1/4) the
diameter inches removed.
b. Coniferous/evergreen tree species shall be replaced with new coniferous or evergreen
trees at a rate of one-half (1/2) the diameter inches removed. Since coniferous species are
often sold by height rather than diameter inch, the following conversion formula can be
used: Height of Replacement Coniferous Tree/2 equals Diameter Inches of Credit.
c. Hardwood deciduous tree species shall be replaced with new hardwood deciduous trees
at a rate of one-half (1/2) the diameter inches removed.
d. Replacement tree size. Replacement trees must meet the minimum sizes listed in Lake
Elmo Code Section 105.12.480.
10) Species requirement. The City must approve all species used for tree replacement. Ornamental
trees are not acceptable for use as replacement trees. Where ten (10) or more replacement trees are
required, not more than thirty (30) percent of the replacement trees shall be of the same species of
tree. The planting of native species is encouraged, and hardiness and salt tolerance of the plants
should be considered where applicable.
11) Warranty requirement. Any replacement tree which is not alive or healthy, as determined by the
City, or which subsequently dies within two (2) years after the date of the initial landscape
inspection and acceptance by the City or of the project closure, whichever occurs later shall be
removed by the applicant and replaced with a new healthy tree meeting the same minimum size
requirement within eight (8) months of removal.
10) 11) Protective measures. The Tree Preservation Plan requires the following measures to be utilized
to protect significant trees planned for preservation:
a. Before any grading or construction activity, the applicant shall install snow fencing or
polyethylene laminate safety netting at the drip line or at the perimeter of the critical root
zone, whichever is greater, of significant trees, specimen trees and significant woodlands
to be preserved. No grade change, construction activity, parking, or storage of materials
shall occur within this fenced in area.
1. See Minnesota Department of Transportation Standard Plan 5-297.301 and
Minnesota Department of Transportation Specification Section 2572 for specific
requirements related to tree protection and restoration.
b. Measures to be taken so that oak trees are not wounded, trimmed, pruned, or damaged in
any way (root, bark, branches, etc.) between the dates of March 15 and October 31.
7
Measures to be taken to ensure that any oak trees pruned or trimmed have any cut areas
sealed with an appropriate nontoxic tree wound sealant.
c. Prevention of change in soil chemistry due to concrete washout and leakage or spillage
of toxic materials, such as fuels or paints.
d. Removal of any nuisance or dead trees located in areas to be preserved.
e. Installation of erosion control methods.
12) Additional protective measures. The City encourages applicants to use the following tree protection
measures to protect the root zones and to prevent damage to significant and specimen trees that the
applicant intends to preserve;
a. Installation of retaining walls or tree wells to preserve trees.
b. Placement of utilities in common trenches outside of the drip line of significant and
specimen trees or use of tunneled utility installation.
c. Use of tree root aeration, fertilization, or irrigation systems.
13) Compliance with the tTree pPreservation pPlan. The applicant shall implement the Tree
Preservation Plan and receive confirmation of acceptance from the City’s Landscape Architect prior to
the start of and during any grading or construction activities. The tree protection measures shall remain
in place until all grading, and construction activity is terminated or until a request to remove the tree
protection measures is made to, and approved by, the City.
a. No significant trees shall be removed until the Tree Preservation Plan is approved by the
City and except in accordance with the approved Tree Preservation Plan.
b. If an applicant damages or removes a significant tree that is intended to be preserved to
the point that City staff believes the tree will not survive, the applicant must remit to the
City a cash mitigation, calculated per diameter inch of the removed or damaged tree in
the amount set forth in the City fee schedule.
c. The City shall have the right to inspect the site in order to determine compliance with the
approved Tree Preservation Plan. The cCity shall determine whether the Tree
Preservation Plan has been met prior to the release of any financial security obtained for
tree preservation.
d. Instances where a significant tree is removed due to new development, redevelopment,
new construction activity or were disturbed, and the removal was not noted on the
landscaping or tree removal plan will result in a one-to-one replacement penalty
regardless of if the removal is over the thirty percent (30%) allowance.
d) Tree protection standards for non-developing properties.
1) Existing developed commercial, industrial, and mixed-use properties.
a. Trees that are removed in an existing commercial, industrial, or mixed-use development
must be replaced in accordance with the original landscaping plan, unless the property
owner has obtained City approval for an alternative landscaping plan. If the original
landscaping plan is not able to be found, trees identified by the most recent aerial photo
of the property will be assumed to be part of the original landscape plan.
b. Trees that are removed that were part of a designated tree preservation area must be
replaced in accordance with the tree replacement requirements outlined in Lake Elmo
Code Section 105.12.470. The thirty percent (30%) allowable tree removal limit does not
apply in these situations.
e) Warranty requirement. Any tree installed as a required replacement tree shall have the same two year
warranty requirements as trees required by Lake Elmo Code Section 105.12.480
8
f) Financial security. In cases where mitigation or tree replacement is required, the City may require that a
financial security, in a form acceptable to the City, be provided as part of a development agreement, site
improvement agreement or applicable permit to ensure compliance and performance of the Mmitigation
Pplan. The financial security will be released to the applicant upon verification by the City that the
Mmitigation Pplan was followed, and that all replacement trees have been installed in accordance with the
approved landscaping plan, match or exceed approved plan quantities, and meet City acceptance
requirements to begin the two year landscape warranty.are planted and are healthy The financial security may
be used to replace any replacement trees that have become damaged, are not healthy, or are diseased after
planting.do not satisfy the warranty criteria.
g) Exceptions.
1) Exception standards. Notwithstanding the City's desire to accomplish tree preservation and
protection goals, there may be instances where these goals are in conflict with other City
objectives. These conflicts will most likely occur on small, heavily-wooded parcels. The City
recognizes there may be instances where it is not practical or reasonable to have an applicant plant
the total required replacement trees on the site. The City encouragesnters applicants to have the
required number of tree replacements tress planted entirely on the site to the extent this is of as
much as possible. The City will only approve the use of fee-in-lieu of tree replacement or other
mitigation methods when all the required tree replacements cannot practically or reasonably occur
on the site in the judgement of the City.
Applicants may ask the City to approve exceptions to the City's tree preservation and replacement
standards. The City Council may grant exceptions if all of the following conditions exist:
a. It is not feasible to combine the subject parcel with adjacent parcels that could use the
parcel as required green space;
b. Strict adherence to the City's tree preservation and replacement standards would prevent
reasonable development that is consistent with the Comprehensive Plan and desirable to
the City on the parcel; and
c. The exception requested is the minimum needed to accomplish the desired development
or redevelopment.
2) Reduced mitigation for exceptions. If the City Council approves an exception to the tree
preservation standards, relief from the requirements of the standards may take the form of reduced
mitigation requirements, greater allowable tree removal, higher thresholds for determining
significant trees, or any combination of the above. The City Council will determine which form of
relief best balances the objectives of the City and tree preservation.
The City Council may require payment to the City of a fee-in-lieu of tree replacement, payment of
additional park dedication fees; the implementation of woodland management practices by the
applicant; or the planting of replacement trees on City property by the applicant under direction of
the City Public Works Director; or a combination of these methods as a condition of the City
approving relief or an exception from the City tree preservation and replacement standards. The
amount of the fee-in-lieu of tree replacement is set forth in the City's fee schedule.
105.12.480 – Landscape Requirements
Proposed Language:
All development sites shall be landscaped, as provided in this section, in order to control erosion and runoff, promote
conservation of water, moderate extremes of temperature and provide shade, aid in energy conservation, preserve
habitat, provide visual softening of, especially, urban development, and generally enhance the quality of the physical
environment within the cityCity.
9
a) Landscape plan requirementsd. A landscaping plan is required for all new commercial, industrial,
institutional, and multifamily developments, all planned unit developments, and all subdivisions, with the
exception of minor subdivisions, as defined in this chapter. The landscape plan shall be prepared by a
certified landscape architect licensed by the State of Minnesota, shall be drawn to a scale identified on the
plan, and include the following:
1. The location, size, quantity, and species of all existing and proposed plant materials. Landscape
plan(s) must include a legend with all line types and hatch patterns depicted on the plan and
backgrounds. Legend items shall match the hatch and line type, and scale depicted on the plans.
2. The landscaping plan(s) shall locate and label all existing and proposed plant materials and ground
covers.ion,
3. The landscaping plan(s) shall provide a plant schedule which includes the following information:
a. Common Name This name shall align with the corresponding plan symbol or hatch pattern
in the legend
b. Scientific Name
c. Trees shall be ordered in the plant schedule by genus
d. Total quantities for deciduous, coniferous, and ornamental trees
e. Quantity by species
f. Size
g. Root ball type
h. Height and spread of each plant:
1. at the time of planting and
2. at the time of anticipated maturity.
4. size, quantity, and species of all existing and proposed plant materials.
4. Location and Mmethods for protecting existing trees and other landscape material, consistent with
Lake Elmo Tree Preservation Code Section 105.12.470.
3. The plant schedule shall depict the height and spread of each plant type at the time of planting
and at the time of maturity.
5. All existing and proposed features such as buildings, structures, parking areas, pervious and
impervious pavement, signs, fences, walls, enclosures, natural features, grading, property lines,
easements, utilities, and driveways shall shall be clearly shown on the plans.
6. Seeding, sodding, and ground cover materials shall be identified in the landscaping plan with
hatching.
7. Provisions for irrigation and other water supplies. A watering plan and schedule shall be provided
for all areas where an irrigation system is not included.
8. Elevation view, details, and cross-sections of all required screening.
9. City standard plan notes and planting details, ands well as any additional project specific planting
instructions and notes.
10. Topsoil preservation plan that includes: stockpile location, calculations that a sufficient amount of
topsoil will be set aside to restore the site with a depth of four (4) inches, erosion control
requirements, and a soil report prepared by an independent party verifying topsoil borrow meets or
has been altered to meet the composition requirements of Minnesota Department of Transportation
MN DOT Specification 3877 as modified to contain no less than than 6% organic matter.
b) Design considerations. The following design concepts and requirements shall be considered when
developing a landscape plan.
1. To the maximum extent possible, the landscape plan shall incorporate, preserve and protect, existing
significant trees and other healthy, non-invasive vegetation on the site.
2. Landscaped areas should be of adequate size to allow for healthy plant growth, to a typical mature
size without impeding on roads, walks, trails, buildings or other areas needed for service access or
public safety. Planting areas should provide adequate areas for plant maintenance.
3. A variety of trees and shrubs should be used to provide visual interest year-round. No more than 25
percent of the required number of trees and shrubs may consist of any one taxonomic genus. A
minimum of 25 percent of the required number of trees shall be deciduous shade trees, and a
minimum of 25 percent shall be coniferous trees. Ornamental trees may be used when applied
towards landscaping requirements. However, the number of trees shall not exceed 15 percent of the
required amount.
10
4. Final slopes greater than 3:1 will not be permitted without special treatment such as terracing,
retaining walls, erosion control blankets, or special ground covers.
5. All plant materials, except trees planted per the tree replacement schedule, shall meet the following
minimum size standards in Table 6-1. Trees planted per the tree replacement schedule shall meet the
minimum requirements outlined in Lake Elmo Code Section 105.12.470(c)(8)d.
Table 6-1: Minimum Size Standards for Landscape Materials
Plant Type Minimum Size at Planting **
Trees:
Evergreen 6 feet in height
Deciduous--shade 2.5 inches caliper, measured six inches from
base
Deciduous--ornamental 2 inches caliper, measured six inches from base
Shrubs:
Evergreen # five container*
Deciduous # five container*
Shrubs used for screening (evergreen or
deciduous) # five container*
* Approximately five gallons.
** See American Standards for Nursery Stock, ANSI 260.1-2004 for exact specifications.
* This table and its requirements do not apply to the tree replacement schedule.
6. As an alternative to the minimum standards for landscape materials, a landscape plan prepared by a
qualified professional certifying that said plan will meet the intent of this section may be submitted.
7. As a general rule, tTrees should must be planted a minimum of ten feet away from all utilities
including water and sewer stubs unless approved by the cCity. No plantings may be placed in or
within 5 feet of a drainage and utility easement, unless approved by the Public Works Director.
c) Landscaping of setback areas. All required setbacks not occupied by buildings, parking, paths or plazas shall
be landscaped with turf grass, native grass, trees, shrubs, vines, perennial flowering plants, and surrounding
pervious ground cover.
1. A minimum of one tree per lot or one tree for every 50 feet of street footage, lake shore or stream
frontage, or fraction thereof shall be planted at the time of development. The total tree requirement
will be whichever quantity is greater.
a. Trees adjacent to streets shall be planted within the front yard and may be arranged in a
cluster or placed at regular intervals to best complement existing landscape design patterns
in the area.
b. Salt tolerance, species soil compatibility, and root structure should be considered when
selecting tree species adjacent to streets, sidewalks and parking areas.
c. Where property abuts a lake or stream, trees shall be planted at intervals of no more than 50
feet along the shoreline, except where natural vegetation is sufficient to meet this
requirement.
2. In addition to the requirements of subsection (c)(1) of this section, a minimum of five trees shall be
planted for every one acre of land that is disturbed by development activity. Such trees may be used
for parking lot landscaping or screening as specified in subsections (d) and (e) of this section.
d) Interior parking lot landscaping. The purpose of interior parking lot landscaping is to minimize the
expansive appearance of parking lots and provide shaded parking areas. Landscaping shall consist of planting
islands, medians and borders, comprising the required planting area specified under subsection (d)(1) of this
section.
1. At least five percent of the interior area of parking lots with more than 30 spaces shall be devoted to
landscape planting areas. Areas may consist of islands or corner planting beds.
11
2. Shade trees shall be provided within the interior of parking lots (in islands or corner planting beds)
in accordance with the following table:
Table 6-2: Minimum Required Tree Planting for Parking Lots
Number of Parking Spaces Minimum Required Tree Planting
0--30 None required
31--100 1 tree per ten spaces or fraction thereof
101+ 1 tree per 15 spaces or fraction thereof
e) Perimeter parking lot landscaping. Parking areas, and especially vehicle headlights, shall be screened from
public streets and sidewalks, public open space, and adjacent residential properties. Where applicable an
applicant may demonstrate that distance and/or finished grades would achieve this objective, whereupon this
requirement may be waived by the Community Development Director. The perimeter of parking areas shall
be screened as follows:
1. With the exception of the VMX area, a landscaped frontage strip at least eight feet wide shall be
provided between parking areas and road right-of-way. If a parking area contains over 100 spaces,
the frontage strip shall be increased to twelve feet in width.
a. Within the frontage strip, screening shall consist of either a masonry wall, fence, berm, or
hedge or combination that forms a screen a minimum of 3 1/2 and a maximum of four feet
in height, and not less than 50 percent opaque on a year-round basis.
b. Trees shall be planted at a minimum of one deciduous tree per 50 linear feet within the
frontage strip.
2. Along side and rear property lines abutting residential properties or districts, screening shall be
provided, consisting of either a masonry wall, fence or berm in combination with landscape material
that forms a screen a minimum of four feet in height, a maximum of six feet in height, and not less
than 90 percent opaque on a year-round basis. Landscape material shall include trees, planted at a
minimum of one deciduous or coniferous tree per 40 linear feet along the property line.
a. Figure A: Example cross-section view of perimeter parking lot landscape screening.
b. Figure B: Example elevation view of perimeter parking lot landscape screening.
12
f) Screening. Screening shall be used to provide visual and noise separation of more intensive uses from less
intensive uses. Where screening is required in the City Code between uses or districts, it shall consist of
either a wall or fence, or berm in combination with landscape material that forms a screen at least six feet in
height, and not less than 90 percent opaque on a year-round basis. Top-of-wall or fence shall be a minimum
of six feet above the elevation along the property line(s) from which screening of the less intensive use is
required. The cCity may require screening at least eight feet in height were the difference in intensity of uses
is greater, such as between lots planned for development with single-family attached and detached residential
development and certain service uses such as self-service storage and trade shops, automotive/vehicular uses,
or industrial and extractive uses. Landscape material shall include trees, planted at a minimum of one
deciduous or coniferous tree per 25 linear feet along the property line. Screening trees shall be adequately
sized and offset from the property line so as not to overhang adjacent properties upon reaching mature size.
Additional landscape material, such as shade trees or trellises, may be required to partially screen views from
above.
1. Figure C: Example cross-section of screening between land uses.
2. Figure D: Example elevation view of screening between land uses.
13
g) Standards, installation, and Mmaintenance, and installation of plant and landscape materials. The
preparation, Iinstallation, and maintenance of all landscape materials shall comply with the following
standards unless otherwise stipulated in the City’s Landscape Special Provisions:
1. All landscape materials, installation and maintenance shall be installed to current comply with
industry the City’s Landscape Special Provisions and the Minnesota Department of Transportation
Standard Specifications Section 2571 and Standard Plan 5-297.301 Standard Planting Details A-C.
Special attention must be paid to initial soil preparation, drainage, and proper initial planting of
plant root mass.
2. A pre-installation conference between the City’s Landscape Architect, developer/builder, and
landscape contractor shall be required prior to the installation of any code required plantings or
seeding. Any landscaping material not required for erosion control installed without a pre-
installation conference will be rejected.
a. Prior to the conference, both developer and the developer’s contactor shall have reviewed
the pre-installation checklist included in the City’s Landscape Special Provisions to gain
familiarity with the requirements and identify areas needing clarification.
3. Irrigation or other water supply to support the specified plant materials adequateWatering of all
plant materials and ground cover in the approved development plan shall be provided at the time of
or immediately after, plant installation to support establishment and shall continue through the entire
warranty period. The watering requirements are set forth in the Minnesota Department of
Transportation Specification Section 2571.
4. All required landscaping and screening features shall be kept free of refuse, and debris, and noxious
weeds.
5. All landscape landscaping, mulch depthbeds, plantings, and seeded, and sodded areas shall be
maintained to manage noxious weeds and ensure establishment of intended plant materials.
6. All landscape materials shall be guaranteed for two years. Any landscape material that dies, has a
dead or broken central leader, exhibits 30% or more crown death, is damaged by construction, or
becomes diseased before the end of the second year after acceptance shall be replaced by the
developer.
6. For nonresidential projects, continuing maintenance and replacement of landscape materials shall be
the responsibility of the property owner, including after two years of initial installation.
Improvements identified on the landscape plan, including non-plant materials, such as fencing, shall
be maintained for the life of the project for which the plan was required.
h) Topsoil Borrow Requirements. Earthwork and topsoil shall comply with the following standards:
1. The topsoil stock pilestockpile location and erosion controls shall be called out in the plan set when
building permit for new residential or commercial construction is submitted to the cCity. All areas
disturbed, outside of paved areas, shall be excavated to a depth of four (4) inches and tilled to a
depth of six (6) inches ro to remove compaction. The depth of the topsoil borrow shall be no less
than four (4) inches, not including sod depth.
2. Only topsoil borrow meeting MinnesotaN Department of TransportationOT Specification 3877 as
modified to contain no less than 6% organic matter, is to be placed as the final soil layer on a site to
provide the required depth of topsoil borrow cover an and to bring the entire site to grade.
3. Confirmation of topsoil depth and quality shall be submitted as written confirmation from a licensed
party before a full Ccertificate of Ooccupancy is issued.
i) Warranty
1. All landscape materials shall be guaranteed for a period of at least two years.
a. The warranty begins when all approved development plan landscaping meets all required
acceptance criteria, as determined by the City’s Landscape Architect, from the Lake Elmo
Code Section 105.12.480, the City’s Landscape Special Provisions and in the Minnesota
Department of Transportation Standard Specifications Section 2571 and Standard Plan 5-
297.301 Standard Planting Details A-C.
b. The warranty period ends when all approved development plan landscaping meets the
requirements, as determined by the City’s Landscape Architect, listed in Lake Elmo Code
Section 105.12.480(i)(1)(a).
c. Meeting the above requirements (i)(1)(a) and (i)(1)(b) may include replacements and
corrections to existing plant, tree, seed, sod, and landscaping installations, as well as new
installations of any landscaping material in the approved development plan not installed.
2. The developer is required to correct all non-compliant landscaping within 60 days of notification.
14
3. Warranty compliance inspections will be performed at the initial installation phase and to close out
the project at the end of the two year warranty period. Any landscape material that dies, has a dead
or broken central leader, exhibits 30% or more crown death or defoliation, is damaged by
construction or maintenance, becomes diseased or infested, or is not planted in compliance with the
Minnesota Department of Transportation Specification and Standard Plating Details A-C will not be
accepted. Acceptance is a requirement to secure release of the financial security portion allocated to
that phase of the warranty.
a. The developer is responsible for notifying the City when the project is ready for inspection.
j) Financial security. The city City will require that a financial security, in a form acceptable to the city City, be
provided as part of a development agreement or applicable permit to ensure compliance and performance of
the landscape plan. The financial security will be released to the applicant upon verification by the city City
that the landscape plan was followed, and that all landscape materials are planted and in a reasonable state of
health. The financial security may be used to replace any landscape materials that have become damaged or
diseased after planting. Adequate security must be retained to ensure performance for at least two years after
the installations have been completedthe required landscaping from the approved development plan meets all
City requirements and receives both initial acceptance start the two year landscape warranty period and final
acceptance to complete the two year landscape warranty period.
PUBLIC HEARING:
A public hearing was published in the City’s official newspaper on October 28, 2024. No public
comment has been received.
PLANNING COMMISSION:
The Planning Commission review this request at their November 3, 2024 meeting. The
commission voted to recommend approval of the amendments as proposed by Staff (Vote 5-0).
FISCAL IMPACT:
None.
OPTIONS:
• Approve the proposed amendments.
• Amend the proposed amendments.
• Deny the proposed amendments.
RECCOMENDATION:
Staff recommends the City Council approve the proposed text amendment as presented by Staff.
“Move to adopt Ordinance 2024-19 amending the City code as presented by City Staff”
AND
“Move to adopt resolution authorizing publication summary Ordinance 2024-19 with approval
of Resolution 2024-129”
ATTACHMENTS:
• Ordinance 2024-19
• Resolution 2024-129
• Lake Elmo - Developer Landscaping and Site Restoration Checklist (2025)
• Minnesota Department of Transportation Standard Plan 5-297.301
• Minnesota Department of Transportation Specification Section 2572
CITY OF LAKE ELMO
COUNTY OF WASHINGTON
STATE OF MINNESOTA
ORDINANCE NO. 2024-19
AN ORDINANCE AMENDING THE LAKE ELMO CITY CODE FOR
ZONING LANDSCAPING SECTIONS 105.12.470 TREE PRESERVATION & 105.12.480
LANDSCAPING REQUIREMENTS
SECTION 1. The City Council of the City of Lake Elmo hereby amends Title 105 Zoning; Chapter
105.12: Zoning Code, Section 470 Tree Preservation by changing the following section (Proposed
language is underlined, deleted language is shown with strikethrough):
a) Purpose. Within the City of Lake Elmo, trees and woodlands are considered a valuable asset to the community. The City
places a priority on protecting this asset and finds that it is in the best interest to regulate the development and alteration of
wooded areas within the community. All applicants shall comply with all the provisions in the Zoning Code which address
the preservation of existing significant trees, including this section. All applicants shall demonstrate a good faith effort to
maximize tree preservation during the development review phase and shall avoid a mass-grading approach to site
development where possible. Applicants are encouraged to preserve all healthy trees of significant value even if the trees do
not meet the size requirements to be considered significant trees.
b) Definitions. The following words, terms and phrases, when used in this section, shall have the meanings ascribed to them in
this subsection, except where the context clearly indicates a different meaning:
Applicant means any person or entity submitting an application to the City for approval of a land use permit including
preliminary plat, final plat, conditional use permit, interim use permit, planned unit development, variance or grading permit.
Common tree means and includes Ash, Aspen, Basswood, Catalpa, Elm, Hackberry, Locust, Poplar, Silver Maple, Willow
and any other tree not defined as a hardwood deciduous tree or a coniferous/evergreen tree.
Coniferous/evergreen tree means a wood plant, which, at maturity, having foliage on the outermost portion of the branches
year-round. Tamaracks are included as a coniferous tree species.
Construction area means any area in which construction activity has or is occurring.
Construction activity means any disturbance to the land that results in the movement of earth, the alteration in the topography
or existing soil cover (both vegetative and non-vegetative) that may result in accelerated stormwater runoff, leading to soil
erosion and movement of sediment into surface water or drainage systems. Examples of construction activity may include
clearing, grading, filling, excavating, building construction and landscaping.
Construction damage means any action such as filling, scraping, trenching, or compacting the soil around trees or wounding
trees in such a manner that it may result in the eventual death of the tree.
Critical root zone (CRZ) means an imaginary circle surrounding the tree trunk with a radius distance of one (1) foot per one
(1) inch of tree diameter. E.g., a 20-inch diameter has a critical root zone with a radius of twenty (20) feet.
Deciduous hardwood tree means a tree that loses its foliage or leaves annually such as Birch, Cherry, Hickory, Ironwood,
Hard Maples, Oak and Walnut.
Development means any activity or proposal that requires City approval of a preliminary plat, final plat, building permit,
demolition permit, conditional use permit, interim use permit, planned unit development, variance or grading permit.
Diameter breast height (DBH) means the diameter of trees at breast height, measured 4 1/2 feet (54 inches) above the ground.
Drip line means the farthest distance away from the trunk of a tree that rain or dew will fall directly to the ground from the
leaves or the branches of the tree.
Healthy tree means a healthy tree has:
1) A live top (live crown) that is greater than one-third (1/3) the total tree height;
2) Dead branches that make up less than fifteen percent (15 %) of the total crown;
3) Less than fifteen percent (15%) of the tree crown with missing branches;
4) Consistent growth of foliage throughout the live portion of the crown; and
5) A tree trunk with no open wounds that are greater than one-third (1/3) the diameter of the tree, with no wounds in
contact with the ground and no wounds that have soft, punky wood or other indication of decay.
New development means all sites with construction activity or development that are not defined as redevelopment.
Nuisance tree means:
1) Any living or standing tree or part thereof infected to any degree with a shade tree disease (see Tree disease below)
or shade tree pest;
2) Any logs, stumps, branches, firewood or other part of dead or dying tree(s) infected with a shade tree disease or
shade tree pest unless properly treated; and
3) Any standing dead trees or limbs which may threaten human health or property.
Also included are noxious or invasive trees such as Amur Maple, Japanese Barberry, Russian Olive, Siberian Elm, Buckthorn,
Boxelder, and Cottonwood.
Ornamental tree means a small tree, usually less than thirty (30) feet in height at maturity, often planted for ornamental characteristics
such as flowers or attractive bark.
Redevelopment means a site with construction activity that creates new or replaces existing impervious surface, buildings or structures
on a parcel that is fully or partially occupied by buildings, structures, or other impervious surfaces.
Tree disease or diseased means Dutch elm disease (Ophiostoma ulmi or Ophiostoma novo-ulmi), oak wilt (Ceratocystis fagacearum)
or any other tree disease of epidemic nature.
Tree pest means Emerald Ash Borer (Agrilus plannipenis), European elm bark beetle (Scolytus multistriatus), Native elm bark beetle
(Hylurgopinus rufipes) or any other tree pest with potential to cause widespread damage.
Significant tree means a healthy tree measuring a minimum of six (6) inches in diameter for hardwood deciduous trees, nineteen (19)
feet in height or eight (8) inches in diameter for coniferous/evergreen trees, or twelve (12) inches in diameter for common trees, as
defined herein.
Site means a parcel or area of land within which construction activity, development, or redevelopment occurs or is to occur.
Specimen tree means a healthy, deciduous hardwood tree measuring equal to or greater than thirty (30) inches in diameter breast
height or a healthy coniferous/evergreen tree measuring equal to or greater than twenty-five (25) feet in height.
Tree pPreservation pPlan means a plan prepared by a certified landscape architect licensed by the State of Minnesota or forester
indicating identifying all of the significant and specimen trees in the proposed development or parcel. A Tree Preservation Plan must
include a proposed site plan, a proposed grading plan including all custom graded lots, a tree inventory that includes the size, species,
and location of all significant trees proposed to be saved and removed on the area of development, and the measures proposed to
protect the significant and specimen trees that are to be saved. The applicant shall have the tTree pPreservation pPlan superimposed on
the proposed development grading plan.
Woodland evaluation report means a report prepared by a certified forester, landscape architect licensed by the State of Minnesota,
forester or land surveyor indicating the general location, condition, and species of significant trees on a parcel planned for future
development or grading activity. The report must demonstrate that there will be no impact to existing significant trees as part of the
development or grading activity. Finally, the report must include the measures proposed to protect significant trees on the site.
c) Tree preservation standards for developing properties.
1) Applicability.
a. A tTree pPreservation pPlan, or suitable alternatives as determined by the City, shall be submitted and
approved by the City for the following activities:
1. New development or redevelopment in any Zoning District. A Tree Preservation Plan shall be
required as part of any new development, redevelopment, or subdivision application.
2. Any grading or excavation project that results in the movement of greater than 400 cubic yards of
material per acre of site per Lake Elmo Code Section 105.08.060.
3. If the applicant is able to demonstrate that the proposed development, redevelopment, construction
activity or grading activity includes no impact to the significant trees on the site, then the applicant
may be exempt from the requirement to submit a Tree Preservation Plan. It is the responsibility of
the applicant to demonstrate that there are no impacts to significant trees through a Woodland
Evaluation Report or some other form of tree survey or study.
The Tree Preservation Plan shall reflect the applicant's best effort to determine the most feasible and practical
layout of lots, buildings, parking lots, driveways, streets, storage, storm water management facilities and
other physical features, so the fewest significant and specimen trees are destroyed or damaged.
b. A Tree Preservation Plan is not required for the following activities:
1. The issuance of a development approval for the construction of a single-family residence on an
existing platted lot of record.
2. The harvesting of trees. For the purposes of this section, "harvesting" means cutting or clearing
trees for purposes relating to forestry operations, as defined in Lake Elmo Code Section
105.12.110. "Harvesting" does not include the clearing of land for purposes of development, even
where the trees are sold for purposes of creating lumber for related purposes.
3. Additions to single-family homes, general homes improvements and the construction of accessory
buildings (i.e., garages, sheds) on residential properties.
4. Home gardens or an individual's home landscaping, installation, repairs, or maintenance work.
5. Tree removal related to public improvement projects and maintenance or repairs to existing
streets, roadways, sewers, parks, storm water facilities and utility infrastructure.
6. Emergency removal of trees to protect the public health and safety or to alleviate immediate
dangers to life, limb, property, or natural resources.
7. Tree removal related to public improvement projects to restore or enhance woodlands, savannas,
or prairies.
8. Removal of dead or dying trees, unless those trees were planted as part of tree replacement in
which case the property owner shall replace such trees based on the City-approved Tree
Preservation Plan for the property.
9. Removal of nonnative trees that the City deems as nuisance or as an invasive species.
2) Tree pPreservation pPlan. All applicants shall submit a Tree Preservation Plan prepared by a certified forester or
landscape architect licensed by the State of Minnesota in accordance with the provisions of this section. The Tree
Preservation Plan shall reflect the applicant's best effort to determine the most feasible and practical layout of lots,
buildings, parking lots, driveways, streets, storage, storm water management facilities and other physical features,
so that the maximum amount of significant and specimen trees are preserved and protected from development and
construction. [>]
3) During the review of an application for a building permit, grading permit, site plan approval, planned unit
development, conditional use permit, interim use permit, or preliminary plat, the City will review the project and
the Tree Preservation Plans according to in order to ensure that the Tree Preservation Plan has the best available
layout in order to preserve significant trees and to ensure that the applicant used the best possible design to mitigate
and minimize construction damage to significant trees.
4) Tree pPreservation pPlan requirements. The tTree pPreservation pPlan shall be a separate plan sheet(s) that
includes the following information:
a. The name(s), certification(s), telephone number(s) and address(es) of the person(s) responsible for tree
preservation during the course of the development project.
b. Tree inventory. The Tree Preservation Plan must include a Ttree Iinventory through one of the following
methods:
1. Individual tree inventory. An individual tree inventory including an identification system linked to
metal field tags located four and one-half (4 1/2) feet from grade on all significant trees must be
identified on a plan sheet in both graphic and tabular form.
2. Tree inventory sampling. In cases of sites with large tracts of significant trees, the City may
approve the use of a sampling inventory for all or portions of a site as an alternative to an
individual tree inventory. The sampling inventory must include the methodology for sampling,
identification ribbon around the perimeter of the sampling areas, and metal field tags located four
and one-half (4 1/2) feet from grade on all significant trees in the sampling area. Within the
sampling area, the quantity, size, species, health and location of all significant trees must be
identified on a plan sheet in both graphic and tabular form. Based on sampling, total estimates and
locations of healthy significant trees shall be provided.
3. Combination tree inventory. With the approval of the city City, sites that include both large tracts
of significant trees and areas of individual significant trees may utilize a combination of the
individual and sampling inventory methods.
c. Trees that were planted as part of a commercial business such as a tree farm or nursery do not need to be
inventoried on an individual tree basis. A general description of the trees and an outer boundary of the
planted area must be provided. The burden of proof shall be on the applicant to provide evidence to
support the finding that the trees were planted as part of a commercial business.
d. A listing of healthy significant trees inventoried in subsection (c)(3)b of this section. Dead, diseased,
nuisance or dying trees do not need to be included in the totals.
e. A listing of the healthy significant trees removed, identified by the metal field tag or some other form of
identification used in the tree inventory in subsection (c)(3)b of this section.
f. A listing of the healthy significant trees to remain, identified by the metal field tag or some other form of
identification used in the tree inventory in subsection (c)(3)b of this section.
g. Outer boundary of all contiguous wooded areas, with a general description of trees not meeting the
significant tree size threshold.
h. Locations of the proposed buildings, structures, or impervious surfaces.
i. Delineation of all areas to be graded and limits of land alteration and disturbance.
j. Identification of all significant trees proposed to be removed within the construction area. These
significant trees should be identified in both graphic and tabular form.
k. Measures to protect significant and specimen trees and City standard tree protection detail.
l. Size, species, number and location of all replacement trees proposed to be planted on the property in
accordance with the Mitigation Plan, if necessary.
m. Signature of the person(s) preparing the plan.
5) Implementation. All new construction areas, development sites, and redevelopment sites shall be staked, as
depicted in the approved Tree Preservation Plan, and the required tree protection fencing shall be installed and
approved by the City’s Landscape Architect around the critical root zone before land disturbance is to commence.
The City has the right to inspect the site at any time for compliance with the plan. No encroachment, land
disturbance, trenching, filling, compaction, or change in soil chemistry shall occur within the fenced areas
protecting the critical root zone of the trees to be saved.
6) Allowable tree removal. Up to thirty (30) percent of the diameter inches of significant trees on any parcel of land
being developed, redeveloped, graded, or proposed for construction activity may be removed without having to
adhere to the tree replacement requirements. Replacement according to the tree replacement schedule is required
when removal exceeds more than thirty (30) percent of the total significant tree diameter inches. The following
types of trees do not need to be included as part of the tally of tree removals:
a. Dead, diseased, nuisance, or dying trees;
b. Trees that are transplanted from the site to another appropriate area within the City;
c. Trees that were planted as part of a commercial business, such as a tree farm or nursery (subject to
verification by the City); or
d. Trees that were planted by the current property owner. In making such a determination, the City shall
consider consistency of the age of the trees, any patterns in the location of trees, historical aerial
photography and evidence of intentional planting such as invoices, formal planting plans or cost sharing
agreements.
7) Mitigation plan.
a. In any new development, redevelopment, new construction area, or grading project where the allowable
tree removal is exceeded, the applicant shall mitigate the tree loss by planting replacement trees in
appropriate areas within the development in accordance with the Ttree Rreplacement Sschedule.
b. The form of mitigation to be provided by the applicant shall be determined by the City.
c. The planting of trees for mitigation on residential projects shall be in addition to any other landscape
requirements of the City.
d. All trees, with the exception of ornamental trees, planted as landscaping on commercial or mixed-use
projects may be counted towards tree replacement requirements.
8) Tree replacement calculations. Thirty (30) percent of the total diameter inches of significant trees on the site of
new construction, new development, or redevelopment may be removed without replacement. The applicant shall
plant all required replacement trees on the site of the proposed new construction, new development, or
redevelopment. The following calculation procedure must be used to determine tree replacement requirements:
a. Tally the total number of diameter inches of all significant trees on the site.
b. A calculation must be provided which breaks out the number of inches removed for hardwood,
evergreen/deciduous, and common trees. The thirty (30) percent removal figure applies to each category
individually and trees are replaced according to the Tree Replacement Schedule in subsection (c)(8) of
this section.
9) Tree replacement schedule. Tree removals over the allowable tree removal limit on the parcel or site of new
construction, new development, or redevelopment shall be replaced according to the following schedule:
a. Common tree species shall be replaced with new trees at a rate of one-fourth (1/4) the diameter inches
removed.
b. Coniferous/evergreen tree species shall be replaced with new coniferous or evergreen trees at a rate of
one-half (1/2) the diameter inches removed. Since coniferous species are often sold by height rather than
diameter inch, the following conversion formula can be used: Height of Replacement Coniferous Tree/2
equals Diameter Inches of Credit.
c. Hardwood deciduous tree species shall be replaced with new hardwood deciduous trees at a rate of one-
half (1/2) the diameter inches removed.
d. Replacement tree size. Replacement trees must meet the minimum sizes listed in Lake Elmo Code
Section 105.12.480.
10) Species requirement. The City must approve all species used for tree replacement. Ornamental trees are not
acceptable for use as replacement trees. Where ten (10) or more replacement trees are required, not more than thirty
(30) percent of the replacement trees shall be of the same species of tree. The planting of native species is
encouraged, and hardiness and salt tolerance of the plants should be considered where applicable.
11) Warranty requirement. Any replacement tree which is not alive or healthy, as determined by the City, or which
subsequently dies within two (2) years after the date of the initial landscape inspection and acceptance by the City
or of the project closure, whichever occurs later shall be removed by the applicant and replaced with a new healthy
tree meeting the same minimum size requirement within eight (8) months of removal.
10) 11) Protective measures. The Tree Preservation Plan requires the following measures to be utilized to protect
significant trees planned for preservation:
a. Before any grading or construction activity, the applicant shall install snow fencing or polyethylene
laminate safety netting at the drip line or at the perimeter of the critical root zone, whichever is greater, of
significant trees, specimen trees and significant woodlands to be preserved. No grade change,
construction activity, parking, or storage of materials shall occur within this fenced in area.
1. See Minnesota Department of Transportation Standard Plan 5-297.301 and Minnesota Department
of Transportation Specification Section 2572 for specific requirements related to tree protection
and restoration.
b. Measures to be taken so that oak trees are not wounded, trimmed, pruned, or damaged in any way (root,
bark, branches, etc.) between the dates of March 15 and October 31. Measures to be taken to ensure that
any oak trees pruned or trimmed have any cut areas sealed with an appropriate nontoxic tree wound
sealant.
c. Prevention of change in soil chemistry due to concrete washout and leakage or spillage of toxic materials,
such as fuels or paints.
d. Removal of any nuisance or dead trees located in areas to be preserved.
e. Installation of erosion control methods.
12) Additional protective measures. The City encourages applicants to use the following tree protection measures to
protect the root zones and to prevent damage to significant and specimen trees that the applicant intends to preserve;
a. Installation of retaining walls or tree wells to preserve trees.
b. Placement of utilities in common trenches outside of the drip line of significant and specimen trees or use
of tunneled utility installation.
c. Use of tree root aeration, fertilization, or irrigation systems.
13) Compliance with the tTree pPreservation pPlan. The applicant shall implement the Tree Preservation Plan and
receive confirmation of acceptance from the City’s Landscape Architect prior to the start of and during any grading or
construction activities. The tree protection measures shall remain in place until all grading, and construction activity is
terminated or until a request to remove the tree protection measures is made to, and approved by, the City.
a. No significant trees shall be removed until the Tree Preservation Plan is approved by the City and except
in accordance with the approved Tree Preservation Plan.
b. If an applicant damages or removes a significant tree that is intended to be preserved to the point that
City staff believes the tree will not survive, the applicant must remit to the City a cash mitigation,
calculated per diameter inch of the removed or damaged tree in the amount set forth in the City fee
schedule.
c. The City shall have the right to inspect the site in order to determine compliance with the approved Tree
Preservation Plan. The cCity shall determine whether the Tree Preservation Plan has been met prior to
the release of any financial security obtained for tree preservation.
d. Instances where a significant tree is removed due to new development, redevelopment, new construction
activity or were disturbed, and the removal was not noted on the landscaping or tree removal plan will
result in a one-to-one replacement penalty regardless of if the removal is over the thirty percent (30%)
allowance.
d) Tree protection standards for non-developing properties.
1) Existing developed commercial, industrial, and mixed-use properties.
a. Trees that are removed in an existing commercial, industrial, or mixed-use development must be
replaced in accordance with the original landscaping plan, unless the property owner has obtained City
approval for an alternative landscaping plan. If the original landscaping plan is not able to be found,
trees identified by the most recent aerial photo of the property will be assumed to be part of the original
landscape plan.
b. Trees that are removed that were part of a designated tree preservation area must be replaced in
accordance with the tree replacement requirements outlined in Lake Elmo Code Section 105.12.470. The
thirty percent (30%) allowable tree removal limit does not apply in these situations.
e) Warranty requirement. Any tree installed as a required replacement tree shall have the same two year warranty requirements
as trees required by Lake Elmo Code Section 105.12.480
f) Financial security. In cases where mitigation or tree replacement is required, the City may require that a financial security, in
a form acceptable to the City, be provided as part of a development agreement, site improvement agreement or applicable
permit to ensure compliance and performance of the Mmitigation Pplan. The financial security will be released to the
applicant upon verification by the City that the Mmitigation Pplan was followed, and that all replacement trees have been
installed in accordance with the approved landscaping plan, match or exceed approved plan quantities, and meet City
acceptance requirements to begin the two year landscape warranty.are planted and are healthy The financial security may be
used to replace any replacement trees that have become damaged, are not healthy, or are diseased after planting.do not satisfy
the warranty criteria.
g) Exceptions.
1) Exception standards. Notwithstanding the City's desire to accomplish tree preservation and protection goals, there
may be instances where these goals are in conflict with other City objectives. These conflicts will most likely occur
on small, heavily-wooded parcels. The City recognizes there may be instances where it is not practical or
reasonable to have an applicant plant the total required replacement trees on the site. The City encouragesnters
applicants to have the required number of tree replacements tress planted entirely on the site to the extent this is of
as much as possible. The City will only approve the use of fee-in-lieu of tree replacement or other mitigation
methods when all the required tree replacements cannot practically or reasonably occur on the site in the judgement
of the City.
Applicants may ask the City to approve exceptions to the City's tree preservation and replacement standards. The
City Council may grant exceptions if all of the following conditions exist:
a. It is not feasible to combine the subject parcel with adjacent parcels that could use the parcel as required
green space;
b. Strict adherence to the City's tree preservation and replacement standards would prevent reasonable
development that is consistent with the Comprehensive Plan and desirable to the City on the parcel; and
c. The exception requested is the minimum needed to accomplish the desired development or
redevelopment.
2) Reduced mitigation for exceptions. If the City Council approves an exception to the tree preservation standards,
relief from the requirements of the standards may take the form of reduced mitigation requirements, greater
allowable tree removal, higher thresholds for determining significant trees, or any combination of the above. The
City Council will determine which form of relief best balances the objectives of the City and tree preservation.
The City Council may require payment to the City of a fee-in-lieu of tree replacement, payment of additional park
dedication fees; the implementation of woodland management practices by the applicant; or the planting of
replacement trees on City property by the applicant under direction of the City Public Works Director; or a
combination of these methods as a condition of the City approving relief or an exception from the City tree
preservation and replacement standards. The amount of the fee-in-lieu of tree replacement is set forth in the City's
fee schedule.
SECTION 2. The City Council of the City of Lake Elmo hereby amends Title 105 Zoning; Chapter
105.12: Zoning Code, Section 480 Landscape Requirements by changing the following section
(Proposed language is underlined; deleted language is shown with strikethrough):
All development sites shall be landscaped, as provided in this section, in order to control erosion and runoff, promote conservation of
water, moderate extremes of temperature and provide shade, aid in energy conservation, preserve habitat, provide visual softening of,
especially, urban development, and generally enhance the quality of the physical environment within the cityCity.
a) Landscape plan requirementsd. A landscaping plan is required for all new commercial, industrial, institutional, and
multifamily developments, all planned unit developments, and all subdivisions, with the exception of minor subdivisions, as
defined in this chapter. The landscape plan shall be prepared by a certified landscape architect licensed by the State of
Minnesota, shall be drawn to a scale identified on the plan, and include the following:
1. The location, size, quantity, and species of all existing and proposed plant materials. Landscape plan(s) must include
a legend with all line types and hatch patterns depicted on the plan and backgrounds. Legend items shall match the
hatch and line type, and scale depicted on the plans.
2. The landscaping plan(s) shall locate and label all existing and proposed plant materials and ground covers.ion,
3. The landscaping plan(s) shall provide a plant schedule which includes the following information:
a. Common Name This name shall align with the corresponding plan symbol or hatch pattern in the legend
b. Scientific Name
c. Trees shall be ordered in the plant schedule by genus
d. Total quantities for deciduous, coniferous, and ornamental trees
e. Quantity by species
f. Size
g. Root ball type
h. Height and spread of each plant:
1. at the time of planting and
2. at the time of anticipated maturity.
4. size, quantity, and species of all existing and proposed plant materials.
4. Location and Mmethods for protecting existing trees and other landscape material, consistent with Lake Elmo Tree
Preservation Code Section 105.12.470.
3. The plant schedule shall depict the height and spread of each plant type at the time of planting and at the time of
maturity.
5. All existing and proposed features such as buildings, structures, parking areas, pervious and impervious pavement,
signs, fences, walls, enclosures, natural features, grading, property lines, easements, utilities, and driveways shall
shall be clearly shown on the plans.
6. Seeding, sodding, and ground cover materials shall be identified in the landscaping plan with hatching.
7. Provisions for irrigation and other water supplies. A watering plan and schedule shall be provided for all areas
where an irrigation system is not included.
8. Elevation view, details, and cross-sections of all required screening.
9. City standard plan notes and planting details, ands well as any additional project specific planting instructions and
notes.
10. Topsoil preservation plan that includes: stockpile location, calculations that a sufficient amount of topsoil will be set
aside to restore the site with a depth of four (4) inches, erosion control requirements, and a soil report prepared by an
independent party verifying topsoil borrow meets or has been altered to meet the composition requirements of
Minnesota Department of Transportation MN DOT Specification 3877 as modified to contain no less than than 6%
organic matter.
b) Design considerations. The following design concepts and requirements shall be considered when developing a landscape
plan.
1. To the maximum extent possible, the landscape plan shall incorporate, preserve and protect, existing significant
trees and other healthy, non-invasive vegetation on the site.
2. Landscaped areas should be of adequate size to allow for healthy plant growth, to a typical mature size without
impeding on roads, walks, trails, buildings or other areas needed for service access or public safety. Planting areas
should provide adequate areas for plant maintenance.
3. A variety of trees and shrubs should be used to provide visual interest year-round. No more than 25 percent of the
required number of trees and shrubs may consist of any one taxonomic genus. A minimum of 25 percent of the
required number of trees shall be deciduous shade trees, and a minimum of 25 percent shall be coniferous trees.
Ornamental trees may be used when applied towards landscaping requirements. However, the number of trees shall
not exceed 15 percent of the required amount.
4. Final slopes greater than 3:1 will not be permitted without special treatment such as terracing, retaining walls,
erosion control blankets, or special ground covers.
5. All plant materials, except trees planted per the tree replacement schedule, shall meet the following minimum size
standards in Table 6-1. Trees planted per the tree replacement schedule shall meet the minimum requirements
outlined in Lake Elmo Code Section 105.12.470(c)(8)d.
Table 6-1: Minimum Size Standards for Landscape Materials
Plant Type Minimum Size at Planting **
Trees:
Evergreen 6 feet in height
Deciduous--shade 2.5 inches caliper, measured six inches from base
Deciduous--ornamental 2 inches caliper, measured six inches from base
Shrubs:
Evergreen # five container*
Deciduous # five container*
Shrubs used for screening (evergreen or deciduous) # five container*
* Approximately five gallons.
** See American Standards for Nursery Stock, ANSI 260.1-2004 for exact specifications.
* This table and its requirements do not apply to the tree replacement schedule.
6. As an alternative to the minimum standards for landscape materials, a landscape plan prepared by a qualified
professional certifying that said plan will meet the intent of this section may be submitted.
7. As a general rule, tTrees should must be planted a minimum of ten feet away from all utilities including water and
sewer stubs unless approved by the cCity. No plantings may be placed in or within 5 feet of a drainage and utility
easement, unless approved by the Public Works Director.
c) Landscaping of setback areas. All required setbacks not occupied by buildings, parking, paths or plazas shall be landscaped
with turf grass, native grass, trees, shrubs, vines, perennial flowering plants, and surrounding pervious ground cover.
1. A minimum of one tree per lot or one tree for every 50 feet of street footage, lake shore or stream frontage, or
fraction thereof shall be planted at the time of development. The total tree requirement will be whichever quantity is
greater.
a. Trees adjacent to streets shall be planted within the front yard and may be arranged in a cluster or placed at
regular intervals to best complement existing landscape design patterns in the area.
b. Salt tolerance, species soil compatibility, and root structure should be considered when selecting tree
species adjacent to streets, sidewalks and parking areas.
c. Where property abuts a lake or stream, trees shall be planted at intervals of no more than 50 feet along the
shoreline, except where natural vegetation is sufficient to meet this requirement.
2. In addition to the requirements of subsection (c)(1) of this section, a minimum of five trees shall be planted for every
one acre of land that is disturbed by development activity. Such trees may be used for parking lot landscaping or
screening as specified in subsections (d) and (e) of this section.
d) Interior parking lot landscaping. The purpose of interior parking lot landscaping is to minimize the expansive appearance of
parking lots and provide shaded parking areas. Landscaping shall consist of planting islands, medians and borders,
comprising the required planting area specified under subsection (d)(1) of this section.
1. At least five percent of the interior area of parking lots with more than 30 spaces shall be devoted to landscape
planting areas. Areas may consist of islands or corner planting beds.
2. Shade trees shall be provided within the interior of parking lots (in islands or corner planting beds) in accordance
with the following table:
Table 6-2: Minimum Required Tree Planting for Parking Lots
Number of Parking Spaces Minimum Required Tree Planting
0--30 None required
31--100 1 tree per ten spaces or fraction thereof
101+ 1 tree per 15 spaces or fraction thereof
e) Perimeter parking lot landscaping. Parking areas, and especially vehicle headlights, shall be screened from public streets and
sidewalks, public open space, and adjacent residential properties. Where applicable an applicant may demonstrate that
distance and/or finished grades would achieve this objective, whereupon this requirement may be waived by the Community
Development Director. The perimeter of parking areas shall be screened as follows:
1. With the exception of the VMX area, a landscaped frontage strip at least eight feet wide shall be provided between
parking areas and road right-of-way. If a parking area contains over 100 spaces, the frontage strip shall be increased
to twelve feet in width.
a. Within the frontage strip, screening shall consist of either a masonry wall, fence, berm, or hedge or
combination that forms a screen a minimum of 3 1/2 and a maximum of four feet in height, and not less
than 50 percent opaque on a year-round basis.
b. Trees shall be planted at a minimum of one deciduous tree per 50 linear feet within the frontage strip.
2. Along side and rear property lines abutting residential properties or districts, screening shall be provided, consisting
of either a masonry wall, fence or berm in combination with landscape material that forms a screen a minimum of
four feet in height, a maximum of six feet in height, and not less than 90 percent opaque on a year-round basis.
Landscape material shall include trees, planted at a minimum of one deciduous or coniferous tree per 40 linear feet
along the property line.
a. Figure A: Example cross-section view of perimeter parking lot landscape screening.
b. Figure B: Example elevation view of perimeter parking lot landscape screening.
f) Screening. Screening shall be used to provide visual and noise separation of more intensive uses from less intensive uses.
Where screening is required in the City Code between uses or districts, it shall consist of either a wall or fence, or berm in
combination with landscape material that forms a screen at least six feet in height, and not less than 90 percent opaque on a
year-round basis. Top-of-wall or fence shall be a minimum of six feet above the elevation along the property line(s) from
which screening of the less intensive use is required. The cCity may require screening at least eight feet in height were the
difference in intensity of uses is greater, such as between lots planned for development with single-family attached and
detached residential development and certain service uses such as self-service storage and trade shops, automotive/vehicular
uses, or industrial and extractive uses. Landscape material shall include trees, planted at a minimum of one deciduous or
coniferous tree per 25 linear feet along the property line. Screening trees shall be adequately sized and offset from the
property line so as not to overhang adjacent properties upon reaching mature size. Additional landscape material, such as
shade trees or trellises, may be required to partially screen views from above.
1. Figure C: Example cross-section of screening between land uses.
2. Figure D: Example elevation view of screening between land uses.
g) Standards, installation, and Mmaintenance, and installation of plant and landscape materials. The preparation, Iinstallation,
and maintenance of all landscape materials shall comply with the following standards unless otherwise stipulated in the
City’s Landscape Special Provisions:
1. All landscape materials, installation and maintenance shall be installed to current comply with industry the City’s
Landscape Special Provisions and the Minnesota Department of Transportation Standard Specifications Section
2571 and Standard Plan 5-297.301 Standard Planting Details A-C. Special attention must be paid to initial soil
preparation, drainage, and proper initial planting of plant root mass.
2. A pre-installation conference between the City’s Landscape Architect, developer/builder, and landscape contractor
shall be required prior to the installation of any code required plantings or seeding. Any landscaping material not
required for erosion control installed without a pre-installation conference will be rejected.
a. Prior to the conference, both developer and the developer’s contactor shall have reviewed the pre-
installation checklist included in the City’s Landscape Special Provisions to gain familiarity with the
requirements and identify areas needing clarification.
3. Irrigation or other water supply to support the specified plant materials adequateWatering of all plant materials and
ground cover in the approved development plan shall be provided at the time of or immediately after, plant
installation to support establishment and shall continue through the entire warranty period. The watering
requirements are set forth in the Minnesota Department of Transportation Specification Section 2571.
4. All required landscaping and screening features shall be kept free of refuse, and debris, and noxious weeds.
5. All landscape landscaping, mulch depthbeds, plantings, and seeded, and sodded areas shall be maintained to manage
noxious weeds and ensure establishment of intended plant materials.
6. All landscape materials shall be guaranteed for two years. Any landscape material that dies, has a dead or broken
central leader, exhibits 30% or more crown death, is damaged by construction, or becomes diseased before the end
of the second year after acceptance shall be replaced by the developer.
6. For nonresidential projects, continuing maintenance and replacement of landscape materials shall be the
responsibility of the property owner, including after two years of initial installation. Improvements identified on the
landscape plan, including non-plant materials, such as fencing, shall be maintained for the life of the project for
which the plan was required.
h) Topsoil Borrow Requirements. Earthwork and topsoil shall comply with the following standards:
1. The topsoil stock pilestockpile location and erosion controls shall be called out in the plan set when building permit
for new residential or commercial construction is submitted to the cCity. All areas disturbed, outside of paved areas,
shall be excavated to a depth of four (4) inches and tilled to a depth of six (6) inches ro to remove compaction. The
depth of the topsoil borrow shall be no less than four (4) inches, not including sod depth.
2. Only topsoil borrow meeting MinnesotaN Department of TransportationOT Specification 3877 as modified to
contain no less than 6% organic matter, is to be placed as the final soil layer on a site to provide the required depth
of topsoil borrow cover an and to bring the entire site to grade.
3. Confirmation of topsoil depth and quality shall be submitted as written confirmation from a licensed party before a
full Ccertificate of Ooccupancy is issued.
i) Warranty
1. All landscape materials shall be guaranteed for a period of at least two years.
a. The warranty begins when all approved development plan landscaping meets all required acceptance
criteria, as determined by the City’s Landscape Architect, from the Lake Elmo Code Section 105.12.480,
the City’s Landscape Special Provisions and in the Minnesota Department of Transportation Standard
Specifications Section 2571 and Standard Plan 5-297.301 Standard Planting Details A-C.
b. The warranty period ends when all approved development plan landscaping meets the requirements, as
determined by the City’s Landscape Architect, listed in Lake Elmo Code Section 105.12.480(i)(1)(a).
c. Meeting the above requirements (i)(1)(a) and (i)(1)(b) may include replacements and corrections to existing
plant, tree, seed, sod, and landscaping installations, as well as new installations of any landscaping material
in the approved development plan not installed.
2. The developer is required to correct all non-compliant landscaping within 60 days of notification.
3. Warranty compliance inspections will be performed at the initial installation phase and to close out the project at the
end of the two year warranty period. Any landscape material that dies, has a dead or broken central leader, exhibits
30% or more crown death or defoliation, is damaged by construction or maintenance, becomes diseased or infested,
or is not planted in compliance with the Minnesota Department of Transportation Specification and Standard Plating
Details A-C will not be accepted. Acceptance is a requirement to secure release of the financial security portion
allocated to that phase of the warranty.
a. The developer is responsible for notifying the City when the project is ready for inspection.
j) Financial security. The city City will require that a financial security, in a form acceptable to the city City, be provided as
part of a development agreement or applicable permit to ensure compliance and performance of the landscape plan. The
financial security will be released to the applicant upon verification by the city City that the landscape plan was followed, and
that all landscape materials are planted and in a reasonable state of health. The financial security may be used to replace any
landscape materials that have become damaged or diseased after planting. Adequate security must be retained to ensure
performance for at least two years after the installations have been completed the required landscaping from the approved
development plan meets all City requirements and receives both initial acceptance start the two year landscape warranty
period and final acceptance to complete the two year landscape warranty period.
SECTION 3. Effective Date. This ordinance shall become effective immediately upon adoption and
publication in the official newspaper of the City of Lake Elmo.
SECTION 4. Adoption Date. This Ordinance 2024-19 was adopted on this 3rd day of December, 2024, by a
vote of __ Ayes and ___Nays.
LAKE ELMO CITY COUNCIL
_________________________________
Charles Cadenhead, Mayor
ATTEST:
______________________________
Julie Johnson, City Clerk
This Ordinance 2024-19 was published on the ____ day of ___________________, 2024.
CITY OF LAKE ELMO
COUNTY OF WASHINGTON
STATE OF MINNESOTA
RESOLUTION NO. 2024-129
RESOLUTION AUTHORIZING PUBLICATION OF A SUMMARY OF ORDINANCE 2024-19
WHEREAS, the Lake Elmo City Council has adopted Ordinance No. 2024-19 an ordinance that
amends Lake Elmo City Code Sections: 105.12.470 and 105.12.480.
WHEREAS, the ordinance is lengthy; and
WHEREAS, Minnesota Statutes, section 412.191, subd. 4, allows publication by title and
summary in the case of lengthy ordinances or those containing charts or maps; and
WHEREAS, the City Council believes that the following summary would clearly inform the
public of the intent and effect of the ordinance
NOW, THEREFORE, BE IT RESOLVED by the City Council of the City of Lake Elmo
that the City Clerk shall cause the following summary of Ordinance No. 2024-19 to be published in
the official newspaper in lieu of the entire ordinance:
Public Notice
The City Council of the City of Lake Elmo has adopted Ordinance No. 2024-19, an ordinance that
amends the City Code language in the Zoning Ordinance The following is a summary of the adopted
ordinance language:
This resolution addresses Ordinance No. 2024-19 which was aimed at refining and
updating language and standards in city code. The ordinance revisits Chapter 105.12:
Zoning Code, Section 470 Tree Preservation; and Chapter 105.12: Zoning Code, Section
480 Landscaping Requirements in city code and has been updated for clarity and
consistency purposes.
The full text of Ordinance 2024-19 is available for inspection at Lake Elmo City Offices
during regular business hours.
BE IT FURTHER RESOLVED by the City Council of the City of Lake Elmo that the City
Administrator keep a copy of the ordinance at City Hall for public inspection and that a full copy of
the ordinance be placed in a public location within the City.
Dated: December 3rd, 2024
__________________________________
Charles Cadenhead, Mayor
ATTEST:
____________________________________
Julie Johnson, City Clerk
(SEAL)
Lake Elmo - Developer Landscaping and Site Restoration Checklist:
The following checklist is provided as a summary of high-level expectations to ensure the
installation of required landscaping in the City of Lake Elmo meets all City requirements
including those in the zoning code, development agreement, and approved development
plan. This list is intended to act as a guide to ensure a shared understanding of City
expectations for the required landscaping installation work and standards. It is not a
comprehensive list of requirements.
The developer bears final responsibility for all requirements and shall be responsible for
coordination between their contractors and the City.
Before the Pre-Installation Conference, the Contractor and Developer shall:
• SCHEDULING – The developer shall contact the City to schedule the required pre-
installation conference prior to installing any work.
o Work installed without completing this step will be rejected, no exceptions.
• IRRIGATION - Have read and understood the approved watering plan and schedule
prior to the meeting.
o The contractor may want to coordinate with the Home-owners Association
to control irrigation during the warranty period.
• PHASING – To qualify for phased inspections a development be residential and
must contain at least 200 trees. There can be at most two phases:
o Developer phase: includes all trees lot in front of buildable lots which may be
impacted by home construction.
o Builder phase: Remaining required landscaping and restoration.
o The intent of phased landscaping is to avoid artificially extending the
landscape warranty period for improvements installed prior to development
build out. Each phase will receive its own acceptance date starting the two-
year warranty for that phase within the overall project.
o All phases within an overall project or addition must be completed before
the initial or final surety releases can be granted.
There will be no partial surety release resulting from the acceptance
of a landscaping phase unless previously agreed to by the City.
• STAKING - Stake all tree locations for City approval prior to installation. The
Contractor and Developer shall:
o Coordinate staking to ensure tree locations match the approved
development plan.
o Ensure adjusted tree locations of more than 10 feet from the approved plan
location must are tracked in an ‘as-built’ plan. That plan shall be provided to
the City prior to requesting an initial inspection. An inspection will not be
conducted without an accurate ‘as-built’ plan.
o Stake limits of easements to ensure no tree locations occurs within:
10ft of front and rear lot lines
5ft of side yard or shared property lines
Trees within an easement, regardless of staked location, will require
relocation at the time they are identified.
• TREE STOCK - Notify the City’s Landscape Architect at least 10 calendar days prior
to the installation of trees to schedule an inspection of the tree material prior to
installation. This inspection can occur onsite immediately before planting.
o Twine, burlap, and cages can be left in place if the contractor can
demonstrate that plant stock has been planted with the root flare at the top
of the root ball’s soil mass AND that the twine is organic biodegradable
material.
o At the discretion of the City’s Landscape Architect, trees with trunk wounds,
deformities, disease, or significant damage will not be accepted.
During the Pre-Installation Conference, the Contractor and Developer shall:
• EXAMPLE INSTALLATION - Install three deciduous and three coniferous trees under
the observation of the City’s Landscape Architect to confirm understanding of the
City’s Landscape Special Provisions, MnDOT Standard Specifications Section 2571
and MnDOT Standard Plan 5-297.301 Standard Planting Details A-C planting
requirements. Failure to compile will result in rejection of the tree.
o If trees are to be installed on grades greater than 1:5, one observed example
installations shall be of that type for both deciduous and coniferous.
o Of particular importance is locating, exposing, and placing the root flare at
an elevation just above grade. Failure to do so will result in the rejection of
the tree, regardless of condition.
During or Immediately Following Installation, the Contractor and Developer shall:
• INSTALLATION TIMING – Must align with the MnDOT table below unless otherwise
agreed to by the City and the City’s Landscape Architect.
o The installation timing of landscape material is critical to establishment
success. The installation of all plant material for a project shall comply with
the Planting Dates table MnDOT Standard Plan 5-297.301 Standard Planting
Details A table.
•
• PLANTING - Ensure tree pits comply with size requirements listed in the MnDOT
Standard Plan 5-297.301 Standard Planting Details A-C
o Failure to compile with specified hole sizing will result in rejection of the tree.
• WATERING - Water-in trees and landscaping at the time of installation to ensure
adequate soil moisture and proper soil settlement around the root ball. A minimum
of 15 gallons of water per tree shall be applied during the initial watering.
o Failure to compile will result in rejection of the tree.
• AS-BUILT PLAN - Provide the City’s Landscape Architect with an irrigation as-built
plan or, if manual watering is to be performed in lieu of irrigation, a watering plan
and schedule to ensure adequate water is supplied to support the establishment of
trees and landscaping.
• MAINTENANCE - Be responsible for the maintenance of mulch rings, planting beds,
and ground cover areas throughout the entire warranty period. This includes:
o Replenishing mulch at trees and beds to maintain required depth and size.
o Ensuring weed control throughout the growing season.
o Preventing soil and seed contamination when restoring seeded areas or after
replanting or landscaping.
• RESTORATION - Restore ground-cover areas disturbed during the warranty period
within 15 calendar days of notification.
o Disturbance areas may require regrading to return the area to the designed
final grade.
o Areas where substantial or repeated erosion occurs will require additional
correction that includes erosion control blanketing, until seed has
completely established.
Inspections, Warranty Timing, and Corrections:
• INSPECTION PHASES -
o Initial acceptance: Once all material for a project is installed and deemed
ready by the developer for inspection the City’s Landscape Architect will
inspect for compliance. Compliance for all required landscape materials
must be met to begin the warranty period. Financial surety phase one
release will not occur until this initial acceptance is obtained.
o Final acceptance: Starting no earlier than two years from the date of initial
acceptance, the project is eligible for inspection by the City’s Landscape
Architect to determine compliance for final acceptance. Compliance for all
required landscape materials must be met to close-out the warranty period.
Financial surety phase two release will not occur until this final acceptance
is obtained.
• INSPECTION SCHEDULING - The developer is responsible for contacting the City to
request an inspection of completed work.
o All landscaping work must be entirely complete, partial work inspections will
not be performed.
• RESPONSE TO INSPECTION MEMO FINDINGS AND REQUIREMENTS - Following the
receipt of inspection findings (memo from the City) the contractor shall have 60
calendar days to perform the corrections and replacements identified in the
recommendations section, unless timing of replacements does not meet the
requirements in the Planting Dates by Zone table above. In these cases the
contractor should perform the corrections at the earliest possible opportunity
within the next planting window. If there are concerns about weather, plant
material sourcing, etc. these concerns must be communicated to the City within 21
calendar days.
• Plant substitution requests must be reviewed and approved by the City’s
Landscape Architect prior to use.
OFFICE OF ENVIRONMENTAL STEWARDSHIPDAVID LARSON
DATE PRINTED:PROJECT MANAGER DRAWN BY
TRANSPORTATION BUILDING
STATE OF MINNESOTA
DEPARTMENT OF TRANSPORTATION
ST. PAUL, MINNESOTA 55155-1899MINNESOTADEPARTMENTOFTRANSPORTATIONOFFICE OF ENVIRONMENTAL STEWARDSHIP
ENV. PLANNING AND DESIGN UNIT
SHEET NO.OF SHEETS9
STANDARD PLANTING DETAILS (A)
7STATE PROJECT SP 1901-171 (T.H. 13)
PLANT INSTALLATION PERIOD
(MnDOT 2571.3F2)
ZONE BY DATESPLANTING
SPRINGDECIDUOUSROOT
BARE 21 APRIL 7 APRIL
TO TO
1 JUNE 1 JUNE
B&B
CONTAINER
21 APRIL 7 APRIL
TO TO
30 JUNE 30 JUNE
CONIFEROUS
21 APRIL 7 APRIL
TO TO
1 JUNE 17 MAY
PERENNIALS
1 MAY 1 MAY
TO TO
30 JUNE 30 JUNE
SEEDLINGS
21 APRIL 7 APRIL
TO TO
1 JUNE 1 JUNE
FALLDECIDUOUSROOT
BARE 1OCT. 10OCT.
TO TO
1NOV. 15NOV.
B&B
CONTAINER
25AUG. 25AUG.
TO TO
15OCT. 1NOV.
CONIFEROUS
25AUG. 25AUG.
TO TO
15SEPT. 15SEPT.
PERENNIALS
25AUG. 25AUG.
TO TO
15SEPT. 15SEPT.
DATES.PLANTING
DECIDUOUS FALL THE FOLLOW OR 1STJUNE
THAN LATER NO SPRING THE ININSTALLED
BE MUST PERENNIALS ROOTBARE1.
ENGINEER. THE BYDETERMINED
AS CONDITIONS, SEASONALUPON
DEPENDING CHANGE MAY DATESACTUAL2.
SUMAC.
AND OAKS, PLUM/CHERRY,CRABAPPLE,
WILLOW, MAPLE, ASH,MOUNTAIN
BIRCH, HONEYLOCUST, IRONWOOD,LINDEN,
HACKBERRY, POPLAR, DOGWOOD,HAWTHORN,
SPECIES: FOLLOWING THE OF FORMROOT
BARE FOR ALLOWED NOT IS PLANTINGFALL3.
PERIOD. ESTABLISHMENTPLANT
THE OF YEAR FIRST THE DURINGPLANTING)
(FALL SEPTEMBER AND PLANTING)(SPRING
MAY OF MONTH THE DURINGINSTALLED
BE MUST PLANTS REPLACEMENTALL4.
PROVISIONS. SPECIAL THE INSPECIFIED
BE WILL DATES PLANTING MOVEDMACHINED5.
3 4
PLANTING SOIL
INPLACE CULTIVATED SOILS
THOROUGHLY MIXED WITH
SPECIFIED ADDITIVES
COMPOST AND OTHER
4 INCHES OF GRADE 21'-0"1'-4"MACHINE
SPADING
DIRECTION OF
MACHINE
SPADING
DIRECTION OF
PRIMARY TILLAGE - PASS 1
INCORPORATION TILLAGE - PASS 2
(MnDOT 2571.3D2)
(MnDOT 2571.3D2)
DEPTH
INPLACE SOIL
CULTIVATED
16"12"ACCEPTABLE PLANT STOCK GROWING RANGE LIMITS
SOURCE: USDA PLANT HARDINESS ZONE MAP
o
o o
o
CANADA
ND
SD
NE
MN
IA
KS MO
IL IN
OH
MI
WI
MT
WY
CO
PA
NY
ZONES LEGEND TEMP. MIN.
3
4
FOLLOWS: AS LOCATED, IS SITE PROJECT THE WHERE ZONEMINNESOTA
THE IN HARDINESS FOR ACCEPTABILITY DOCUMENT STOCK, PLANT ALLFOR
SHOWN. LIMITS ACCEPTABLE THE WITHINYEARS
TWO LAST THE LEAST AT FOR GROWN CONTINUOUSLY STOCKPLANTA.
OR
SHOWN. LIMITS ACCEPTABLE THE FROMORIGINATING
STOCK GRAFT AND ROOT OR SOURCE SEED HAVINGLIMITS,
RANGE GROWING ACCEPTABLE THE OUTSIDE GROWN STOCK,LANTPB.
(MnDOT 3861.2C)
-34.4 TO -40 F
-28.9 TO -34.4 F
o o -26.1 TO -28.9 F5a
QUEBEC
ONTARIO
SASKATCHEWAN
MANITOBA
LAKE
LAKELAKELAKE
LAKE
SUPERIOR
MICHIGANHURONERIE
ONTANO
3
4
5a
5b
4
3
4
2
5a
ZONES LEGEND
ACCEPTABLE ZONES
UNACCEPTABLE ZONES
2
1
1 0
LAKEWINNIPEGBAY
HUDSON
6
6
5b5b
5b and 6
0, 1, 2,
3
4
CUT
PRUNING
CORRECT
CLOSE
TOO
LONG
TOO
SLANTED
TOO
PRUNING
BRANCHES PRUNED TO LIVE BUD
BRANCHES PRUNED AT TRUNK
B B
C C
D
D
X
(SHIGO METHOD)
LIVE BUD
BRANCH COLLAR
A A
RIDGE
BRANCH BARK
BRANCH
DEAD
(MnDOT 2571.3K2a9 and 2571.3E1)
:SAW
PRUNING WITH PRUNING TOSTEPS
A. POINT ATBRANCH
THE THROUGH WAY PARTCUT1.
A. TO B POINT FROMBRANCH
THROUGH COMPLETELYCUT2.
D. TO CPOINT
FROM CUT COLLARBRANCH AT3.
GROWTH. OF SEASON ONEAFTER
FORMATION CALLUSDISCONTINUOUS
IN RESULT WILL CLOSE)(TOO
X TO C POINTFROM CUTINCORRECT
GROWTH.
OF SEASON ONE AFTERFORMATION
CALLUS SHAPEDDOUGHNUT
CONTINUOUS IN RESULTWILL
) A TO B POINT FROM STUB THE
T NO BUT COLLAR BRANCH(LEAVING
D TO C POINTFROM CUTCORRECT
: NOTESPRUNING
SAW. PRUNINGOR
PRUNERTYPE-ISSORC SSHARP
AND CLEAN USINGPRUNE1.
SPRING.EARLY
OR SEASON DORMANTLATE
IS PRUNE TO TIME BESTTHE2.
JULY. OR JUNEMAY,
APRIL, IN OAKS PRUNINGAVOID3.
SHELLAC. OR PAINTLATEX
WITH WOUND ORSURFACE
CUT PAINT IMMEDIATELYJULY,
OR JUNE MAY, APRIL, INTREES
OAK TO OCCUR WOUNDSIF
OR NECESSARY IS PRUNINGIF4.
LIVE BRANCH
REVISED - JANUARY / 01 / 2014
NOTESGENERAL
REQUIREMENTS. PROJECT SPECIFIC FOR PROVISIONS SPECIALSEE
REQUIREMENTS.GENERAL
FOR PROJECTS" LANDSCAPE MnDOT FOR MANUAL ADMINISTRATIONCONTRACT
AND INSPECTION " " THE AND 3861, 2571, SPECIFICATIONS MnDOT TOREFER
OPERATIONS. PLANTING INITIAL STARTING BEFORE WORK PREPARATORYCOMPLETE
PLANTING. TO PRIOR 3861) (MnDOT WITH ACCORDANCE IN STOCK PLANT ALLACCEPT
4) STEP 2571.3D2 (MnDOT WITH ACCORDANCE INOPERATIONS
CULTIVATION SOIL FOR COMPETENCY DEMONSTRATE WILL CONTRACTORTHE
2571.3F1) (MnDOT WITH ACCORDANCE INOPERATIONS
INSTALLATION PLANT ALL FOR COMPETENCY DEMONSTRATE WILL CONTRACTORTHE
PROTECTION
RODENT (C) DETAILS PLANTING STANDARD AND PROVISIONS SPECIALSEE
FERTILIZER PROVISIONS SPECIALSEE
COMPOST SPECIFIED. OTHERWISE UNLESS 2 GRADE 3890MnDOT
MATERIAL
MULCH
SPECIFIED. OTHERWISE UNLESS 6 TYPE 3882MnDOT
BEDS
PLANTING
MASS
(C) DETAILS PLANTING STANDARDSEE
BED. PLANTING MASS ENTIRE MULCH IMMEDIATELY.DEFICIENCY
OR SURPLUS QUANTITY PLANT GROSS OF ENGINEERNOTIFY
SHRUB. THE OF CENTER THE TO TREE THE OF CENTERTHE
FROM MEASURED BE WILL RADIUS TREE. CONIFER EACHAROUND
RADIUS CLEAR 8' AND TREE DECIDUOUS EACH AROUNDSHRUBS
OF CLEAR RADIUS 5' PROVIDE OTHERWISE. SPECIFIEDUNLESS
SPACING, TRIANGULAR USE PLANTS. REMAINING WITH INFILL
UNIFORMLY THEN FIRST, PERIMETER THE ON ROWSSTAGGERED
IN BEDS PLANT SHEETS. ON SPECIFIED OTHERWISE UNLESSLESS,
OR ___ AT PLACED PLANTS FOR BEDS PLANTING MASSPREPARE
PREVENTION)
CRACK
(FROST
PAINTING
TREE
BRANCH. MAJORFIRST
TO LINE GROUND FROM CIRCUMFERENCE TREE PAINTACCEPTABLE.
IS PAINT LATEX WHITE EXTERIOR UNDILUTED ONLYASH.
MOUNTAIN AND CRABAPPLE MAPLE, LOCUST, LINDEN, OAK,PAINT
DIMENSIONS
PLANPLANTING
PLAN. FROM SCALING SUPERCEDE DIMENSIONSSTATED
2571.3G) (MnDOT GUIDELINESWATERING TYPEPLANT APPLICATION PERWATER
OF GALLONSAVERAGE
TREES
TRANSPLANTEDMACHINE
50-100
TREES
BURLAPPED ANDBALLED 20
TREES
CONTAINER AND ROOTBARE
15
SHRUBS
BURLAPPED ANDBALLED 10
SHRUBS
CONTAINER AND ROOTBARE
7
SEEDLINGSWOODY 4
VINES ANDPERENNIALS 3
REQUIREMENTS.
NOT GUIDELINES, ARE ABOVE LISTED AMOUNTS THELEVELS.
EXCESSIVE NOT BUT ADEQUATE AT MOISTURE SOILMAINTAIN
AND MONITOR TO RESPONSIBILITY CONTRACTOR'S THE ISIT
2015
15'
PROJECT LOCATION
OFFICE OF ENVIRONMENTAL STEWARDSHIPDAVID LARSON
DATE PRINTED:PROJECT MANAGER DRAWN BY
TRANSPORTATION BUILDING
STATE OF MINNESOTA
DEPARTMENT OF TRANSPORTATION
ST. PAUL, MINNESOTA 55155-1899MINNESOTADEPARTMENTOFTRANSPORTATIONOFFICE OF ENVIRONMENTAL STEWARDSHIP
ENV. PLANNING AND DESIGN UNIT
SHEET NO.OF SHEETS9
STANDARD PLANTING DETAILS (B)
8STATE PROJECT SP 1901-171 (T.H. 13)
2''831'8
75
'8
75
1'4''870'411'411INSTALLATION OF PLANTS
18"12"BA
A
C
BBA
REQUIREMENTS SIZE SPADE TREEMINIMUM
CALIPER
TREE,OAK
TREE,CALIPER
ORNAMENTAL
DECIDUOUS/
HEIGHTTREE,
CONIFEROUS
42" 1.5" to1" 3" to2" 7' to5'
60" 2.5" to1.5" 4" to3" 9' to7'
78" 3.5" to2.5" 6" to4" 14' to9'
85" 5" to3.5" 8" to6" 18' to14'
SIZE
DIAMETER
(C) SPADE
BALLED & BURLAPPED STOCK
HOLE. OF BOTTOM AND SIDESSCARIFY1.
. PRUNING CORRECTIVE WITHPROCEED2.
INTACT. USED), (IF BASKET,IRE W AND BURLAPWITH
GRADE FINISHED THE ABOVE 2" TO UP OR AT ISFLARE
ROOT THE SO PLANT INSTALL SOIL. PLANTINGCOMPACTED
THOROUGHLY OR SOIL NATIVE UNDISTURBED ON PLANTSET3.
INTERVALS. 6" AT BURLAP TREATED REMAININGSLIT4.
PLANT. WATER THEN ROOTBALL,THE
OF TOP THE OF 12" APPROXIMATELY WITHIN TOBACKFILL5.
ROOTS.
RDLINGI G STEM CORRECT OR REMOVE TWINE. ALLREMOVE
BALL. THE OF 1/3 TOP THE FROM NAILS ANDBURLAP
ALL REMOVE GREATER. IS WHICHEVER RINGSHORIZONTAL
TWO TOP THE OR BASKET THE OF 1/3 TOP THEREMOVE6.
SOIL. PLANTING WITH BACKFILL ANDPLUMB7.
VOIDS. FILLAND
PLANTS SETTLETO HOURS 2 WITHIN THOROUGHLYWATER8.
TIME. SECOND A WATER AND VOIDS FILLBACK9.
EXCESSIVE. IS MOISTURE SOILUNLESS
WATERING SECOND THE OF HOURS 48 WITHIN MULCHPLACE10.
PLANTING. TO PRIOR HOURS 24 THAN MORENOT
BUT HOUR ONE LEAST AT FOR WATER IN ROOTSSOAK1.
HOLE. OF BOTTOM AND SIDESSCARIFY2.
.ROOTS
AND TOP THE OF PRUNING CORRECTIVE WITHPROCEED3.
SOIL. PLANTING WITH BACKFILLIMMEDIATELY
AND PLUMB EVENLY. OUT ROOTS SPREADELEVATION.
SOIL FINISHED THE AT IS FLARE ROOT THE SOPLANT
SET HOLE. TO WATER FROM DIRECTLY PLANTTRANSFER4.
VOIDS. FILL ANDPLANTS
SETTLETO HOURS 2 WITHIN THOROUGHLYWATER5.
TIME. SECOND A WATER AND VOIDS FILLBACK6.
EXCESSIVE. IS MOISTURE SOIL UNLESSWATERING
SECOND THE OF HOURS 48 WITHIN MULCHPLACE7.
BARE ROOT STOCK
HOLE. OF BOTTOM AND SIDESSCARIFY1.
. ROOT AND TOP OF PRUNING CORRECTIVE WITHPROCEED2.
ROOTS.LINGD GIR STEM CORRECT ORREMOVE
ROOTS. FIBROUS CIRCLING PREVENT AND REDIRECTTO
MASS SOIL OF OUTSIDE SCORE AND CONTAINERREMOVE3.
GRADE. FINISHED THE ABOVE 2"TO
UP OR AT IS FLARE ROOT THE OF TOP THE SOPLANT
INSTALL SOIL. PLANTING COMPACTEDTHOROUGHLY
OR SOIL NATIVE UNDISTURBED ON PLANTSET4.
SOIL. PLANTING WITH BACKFILL ANDPLUMB5.
VOIDS. FILLAND
PLANT SETTLETO HOURS 2 WITHIN THOROUGHLYWATER6.
TIME. SECOND A WATER AND VOIDS FILLBACK7.
EXCESSIVE. IS MOISTURE SOIL UNLESSWATERING
SECOND THE OF HOURS 48 WITHIN MULCHPLACE8.
CONTAINER STOCK
MACHINE MOVED STOCK
HOLE. OF BOTTOM AND SIDESSCARIFY1.
PRUNING. CORRECTIVE WITHPROCEED2.
GROWN. PREVIOUSLY
WAS IT AS DEPTH SAME AT SOIL NATIVE ON PLANTSET3.
SOIL. PLANTING WITH BACKFILL ANDPLUMB4.
12". OF DEPTH MINIMUM A AND 18"OF
DISTANCE MINIMUM A TO BALLROOT THE TOADJACENT
IMMEDIATELY SOIL THE LOOSEN PLANTING,AFTER5.
VOIDS. FILLAND
PLANT SETTLETO HOURS 2 WITHIN THOROUGHLYWATER6.
TIME. SECOND A WATER AND VOIDS FILLBACK7.
EXCESSIVE. IS MOISTURE SOIL UNLESSWATERING
SECOND THE OF HOURS 48 WITHIN MULCHPLACE8.
PLANTING DETAILS (A)
DETAIL SEE STANDARD
FOR PLANTING SOIL
PLANTING DETAILS (A)
DETAIL SEE STANDARD
FOR PLANTING SOIL
PLANTING DETAILS (A)
DETAIL SEE STANDARD
FOR PLANTING SOIL
SOIL
LOOSENED
PLANTING DETAILS (A)
DETAIL SEE STANDARD
FOR PLANTING SOIL
PLANTING DETAIL (B)
SEE STANDARD
FOR MULCH DETAIL
PLANTING DETAIL (B)
SEE STANDARD
FOR MULCH DETAIL
(MnDOT 2571.3F)
DIMENSIONS HOLEPLANTING
BALL. SOIL OF BOTTOM TOFLAIR
ROOT FROM MEASUREMENT EXCEED NOT SHALL PLANTS CONTAINER AND B&B FOR DEPTHHOLE
TYPEPLANT
INCLUDINGAND
TO UP SIZEPLANT
WIDTH
HOLE MINIMUM(A)
DEPTHHOLE
APPROXIMATE(B)
TREES
ORNAMENTAL
&DECIDUOUS
B.R.3'46"13"
B.R4'46"14"
B.R.5'48"14"
B.R.6'54"15"
B.R7'60"16"
B.R.8'66"19"
B.R.0.75"48'12"
B.R.1"54"14"
B.R.1.25"60"14"
B.R.1.5 66"15"
B.R1.75"72"16"
B.R.2"84"19"
B.B.4'42"11"
B.B.5'48"12"
B.B.6'52"14"
B.B.8'66"16"
B.B.10'66"16"
B.B.12'48"16"
B.B.1"54"14"
B.B.1.25"56"15"
B.B.1.5"61"15"
B.B.1.75"66"16"
B.B.2"72"16"
B.B.2.5"84"19"
B.B.3"96"20"
B.B.3.5"114"23"
B.B.4"126"25"
PERENNIALSAND
ROSESSHRUBS,
DECIDUOUS
B.R.12"24"7"
B.R.15"28"8"
B.R.18"30"8"
B.R.2'33"9"
B.R.3'42"11"
B.B.4'48"12"
TRENCH.CONTINUOUS
A INSPACING
ON-CENTERUPON
BASED BESHALL
WIDTH ANDDEPTH
HOLEPERENNIAL
B.R.5'54"14"
B.R.6'60"14"
B.B.18"27"7"
B.B.2'30"8"
B.B.3'36"9"
B.B.4'42"11"
B.B.5'48"12"
B.B.6'54"14"12"MIN.2
2
2
'2
11
'4183 x
3 / 5 x HEIGHT
MULCH PLACEMENT
(MnDOT 2571.3H)
SPACING FROM TRUNK
'870'HEIGHT PLANT OFTYPE PLANT PER FT.SQ.
TREESCONIFEROUS
2
TREESORNAMENTAL
ANDDECIDUOUS
GRASSORNAMENTAL
PERENNIALS,
BUSHS,ROSE
SHRUBS,DECIDUOUS
ANDCONIFEROUS
SPACING xSPACING
VINES 2 xSPACING
2
MULCH AREA CALCULATOR
= 3.1416
6"MAX+3 X
SPADE DIAMETER
+1 XTREES OR SHRUBS
MACHINE-MOVED
.STEM MAIN ORTRUNK
THE ATSHRUBS
ANDS TREEFROM
6" THAN MORENO
AND 3" THANLESS
NO BACK MULCHPULL1.
DEPTH. 3"MINIMUM
A ATMAINTAINED
IS DEPTH MULCHTHE
IF PERIODESTABLISHED
THETHROUGHOUT
ACCEPTABLEIS
MULCHDETERIORATING
ORSUBSIDING2.
DEPTH.MAXIMUM
6" THE EXCEEDNOT
DO, DEPTHMINIMUM
3" THE BELOW
WHEN MULCHADD3.
REPLACED.
ANDREMOVED
BE MUST SOILWITH
CONTAMINATEDMULCH4.
DECIDUOUS TREE (3' min.)
TRANSPLANT (RADIUS+2' min.)
DECIDUOUS SHRUB (3'min.)
CONIFEROUS AND
CONIFEROUS TREE (RADIUS+3' min.)
'4
33'4
33
INSTALLATION OF VINES
MIN. 2'-0"MIN. 2'-0"
CHAIN-LINK FENCE
INPLACE WALL
OR FENCE
AGAINST THE WALL
TOP RESTS SNUGLEY
AT AN ANGLE SO THE
DRIVEN 12" INTO SOIL
1" x 36" WOOD LATH
VINE
5' BEYOND TERMINAL
BETWEEN VINES AND
MULCH CONTINUOUSLY
TO RIGHT
ROOT STOCK DETAILS
TO APPLICABLE
PLANT ACCORDING
NOTE:
BIODEGRADABLE STRING
LATH WITH
FASTEN LOOSELY TO
REVISED - JANUARY / 01 / 2014
DIMENSIONS HOLEPLANTING
BALL. SOIL OF BOTTOM TOFLAIR
ROOT FROM MEASUREMENT EXCEED NOT SHALL PLANTS CONTAINER AND B&B FOR DEPTHHOLE
TYPEPLANT INCLUDINGAND
TO UP SIZEPLANT
WIDTH
HOLE MINIMUM(A)
DEPTHHOLE
APPROXIMATE(B)
TREES
CONIFEROUS
B.B2'36"10"
B.B3'42"11"
B.B4'51"13"
BUDSTERMINAL
CONTAINWILL
BRANCHESCONIFER
ALL OF 2/3 LEASTAT
B.B5'60"13"
B.B6'66"15"
B.B7'72"16"
B.B8'81"18"
B.B9'90"20"
B.B10'102"21"
B.B12'114"24"
SHRUBS
CONIFEROUS B.B.18"24"7"
B.B.3'48"12"
(UPRIGHT)
SHRUBS
CONIFEROUS B.B. SPR18"30"8"
B.B. SPR2'36"9"
(SPREADING)
PLANTSGROWN
CONTAINER
PLUGS /CELLPACKS 6"2.5"
CONT.2.25"7"3"
CONT.3.5"10"3"
CONT.4"11"4"
CONT.4.5"13"4"
CONT. QT6"/1 15"5.5"
CONT.1#18"6"
CONT.2#23"7.5"
CONT.3#29"8.5"
CONT.5#30"11"
CONT.7#37"11"
CONT.15#44"14"
CONT.10#45"15"
CONT.20#60"16"
CONT.25#72"17"
SEEDLINGS
SEEDLING6"15"14"
SEEDLING9"18"14"
SEEDLING12"23"16"
SEEDLING18"30"16"
SEEDLING2'36"18"
VINES
B.R. MED YR.1 15"11"
B.R. 1 NO. YR.1 17"14'
B.R. MED. YR.2 33"12"
B.R. 1 NO. YR.2 42"15"
WALL INSTALLATION FENCE INSTALLATION
PLANTING DETAILS (A)
DETAIL SEE STANDARD
FOR PLANTING SOIL
OFFICE OF ENVIRONMENTAL STEWARDSHIPDAVID LARSON
DATE PRINTED:PROJECT MANAGER DRAWN BY
TRANSPORTATION BUILDING
STATE OF MINNESOTA
DEPARTMENT OF TRANSPORTATION
ST. PAUL, MINNESOTA 55155-1899MINNESOTADEPARTMENTOFTRANSPORTATIONOFFICE OF ENVIRONMENTAL STEWARDSHIP
ENV. PLANNING AND DESIGN UNIT
SHEET NO.OF SHEETS9
STANDARD PLANTING DETAILS (C)
9STATE PROJECT SP 1901-171 (T.H. 13)
'2
10'8
51
8' FOR CONIFEROUS TREES
5' FOR DECIDUOUS TREES
CHART ON STANDARD PLANTING DETAILS (B)
MINIMUMS FROM THE PLANTING HOLE DIMENSIONS
HOLE EXCAVATION WIDTH IN ACCORDANCE WITH
PLANTING DETAILS (A)
DETAIL SEE STANDARD
FOR PLANTING SOIL
PLANT SPACING IN MASS BEDS
PLANTING DETAIL (B)
SEE STANDARD
FOR MULCH DETAIL
INSTALL GRANULAR FILTER
INSTALL TILE DRAINAGE
'830 GRADE.FINISHED
THAN HIGHER 1"-3" MASS ROOT OF TOP THE PLACING ALLOW TO BED OR HOLEEXCAVATE1.
SUBSOIL. DRAIN ADEQUATELY TOLAYER
SOIL PAN HARD DRAINED POORLY OR IMPERVIOUS THROUGH ENTIRELY HOLES DIAMETER 8"AUGER2.
DRAINAGE.
POSITIVE FOR NECESSARY IF 8" ADDITIONAL AN RE-AUGER DRAINAGE. POSITIVE FORTEST3.
SOIL. INPLACE 50%AND
SAND 50% OF MIXTURE INCORPORATED UNIFORM A WITH HOLES AUGER BACKFILLTHOUROUGHLY4.
(B). DETAILS PLANTING STANDARD SEE TYPE.ROOT TO ACCORDING PLANTINGCOMPLETE5.
GRADE. FINISHED THANHIGHER
1"-3" MASS ROOT THE OF TOP THE PLACING ALLOW TO BED OR HOLEEXCAVATE1.
GRADE. LOWER A AT DAYLIGHTING TILE DRAIN DIAMETER MINIMUM 4"INSTALL2.
). (B DETAILS PLANTING STANDARD SEE TYPE.ROOT TO ACCORDING PLANTINGCOMPLETE3.
INSTALL MINI-BERM
NOTE:
APPROVAL.ENGINEER
TO SUBJECT CONTRACTOR, THE BY DETERMINED ARE USE TO TYPEWHICH
AND SOILS DRAINED POORLY FOR DETAILS PLANTING USING FOR NEEDTHE1.
MASS. ROOT THE OF DEPTH THE 1/4 BED OR HOLEEXCAVATE1.
HOLE. IN MASS ROOTSET2.
HEIGHT. BERM THETIMES
3 OF WIDTH A TO BASE BERM THE EXTEND. SOILPLANTING WITH BERMCONSTRUCT3.
(B). DETAILS PLANTING STANDARD SEE TYPE.ROOT ACCORDING PLANTINGCOMPLETE4.
PLANTING DETAIL FOR POORLY DRAINED SOILS MASSROOT1/4 HOLES
8" AUGER
TILE
4" DRAIN
PLANTING DETAILS (A)
DETAIL SEE STANDARD
FOR PLANTING SOIL
PLANTING DETAILS (A)
DETAIL SEE STANDARD
FOR PLANTING SOIL
PLANTING DETAILS (A)
DETAIL SEE STANDARD
FOR PLANTING SOIL
PLANTING DETAIL (B)
SEE STANDARD
FOR MULCH DETAIL
PLANTING DETAIL (B)
SEE STANDARD
FOR MULCH DETAIL
PLANTING DETAIL (B)
SEE STANDARD
FOR MULCH DETAIL
(MnDOT 2571.3D2 (STEP 8)
NOTE:
BASIN. WATERING THE OF HALF UPHILLTHE
CONSTRUCT NOT DO GREATER, OR SLOPES 1:2ON1.
CUT AREA
EXISTING GRADE
WATER BASIN
UPHILL HALF
WATER BASIN
DOWN HILL HALF
PLANTING DETAILS (A)
DETAIL SEE STANDARD
FOR PLANTING SOIL
DETAILS (B)
SEE STANDARD PLANTING
ROOT TYPE.
PLANT ACCORDING TO
PLANTING ON SLOPES
HOLD WATER IN BASIN.
SOIL RIDGE TO
PLANTING DETAIL (B)
SEE STANDARD
FOR MULCH DETAIL
RIM. TOPOUTWARD-FLARED
AN ANDPERFORATION
LINE LASER A WITHTUBES
POLYPROPYLENETRANSLUCENT
SEMI AND RIGIDTWIN-WALL,
EXTRUDED, SEAMLESS,USE1.
TWISTING.
OR DISLODGINGPREVENT
TO STAKE OAK WHITE 1''x
1'' A TO ATTACHED-TIESCABLE
NYLON WITH SHELTERSECURE2.
ROOTS. TREE THEDISTURBING
WITHOUT SURFACE SOILTHE
BELOW 1'' OF MINIMUM ATUBE
THE OF BOTTOM THEEMBED3.
SHOWN. AS DOWNNETTING
PULL TUBE. THE OFTOP
THE OVER SLEEVE ANDCOVER
NETTINGPHOTODEGRADABLE
PLASTIC AINSTALL4."872'-01'-0""4
31'-5
1'-9"1'-0"SEEDLING TREE SHELTER 2'-0" MIN.12" TO 14"PREVAILING WIND
RECESS
FORMED TUBE
SECURE STAKE IN
CABLE-TIE TO
(LENGTH VARIES)
STAKE
TUBE SHELTER
PERFORATION
LASER LINE
NETTING
(MnDOT 2571.3I4)
RODENT PROTECTION
15"
WIRE MESH
STAKE
CONIFEROUS TREES
12" MIN. HT. FOR
DECIDUOUS TREES
24" MIN. HT. FOR
2". END CUT THE OVERLAPCLOTH).
(HARDWARE MESH WIRE WELDED GALVANIZED GRID 0.25" USING CYLINDER DOUBLE-LAYERED AFORM1.
STEM. TREE THE OFCENTER
THE FROM 7", GROUND THE INTO STAKES OAK WHITE HEARTWOOD OPPOSING 1" x 1" TWODRIVE2.
OVERLAP. THE ALONG CENTER ON 4" APPROXIMATELY SPACE OVERLAP. THE ALONG-TIESCABLE OR
WASHERS AND SCREWS EITHER, USING STAKES THE OF OUTSIDE THE TO CYLINDER MESH THESECURE3.
WASHERS. WITH LONG 3/4" x DIA. 1/8" GALVANIZED HEAD ROUND BE SHALLSCREWSa.
OR
.STRENGTH
TENSILE 120LB TO 75LB BETWEEN AND LONG 8" LEAST AT, NYLON BE SHALLTIES-CABLEb.
ROOTS. TREETHE
DISTURBING WITHOUT SURFACE SOIL THE BELOW 1" CYLINDER MESH THE OF EDGE LOWER THEEMBED4.
CYLINDER. THE OF TOPTHE
WITH FLUSH BE WILL STAKE CYLINDER. THE OF TOP THE AT PERMITTED BE NOT WILL EDGESCUT5.
DETAIL. PLACEMENT MULCH IN SPECIFIED ASTRUNK
THE FROM BACK PULLED BE SHALL AND DEPTH 3" EXCEED NOT SHALL CYLINDER THE WITHINMULCH6.
GUARDS. RODENT HEIGHT MIN. 12" OFINSTALLATION
PERMIT TO REMOVED BE TO HAVE MAY BRANCHES LARCH AND PINE OF WHORL BOTTOMTHE7.
TREES. SPRUCE ONPLACE NOT DO TREES, LARCH AND PINE DECIDUOUS, ALL ONINSTALL8.
(MnDOT 2571.3I2)'814'214'212'832STAKING AND GUYING
SIZING POSTSTEEL
CALIPER TYPE POSTSTEEL A B C D
INCHES4
THENLESS
7'-0"MIN.
3'-0"
4'-0"3'-0"
INCHES
4THEN
GREATER
10'-0"
MIN.
4'-0"
6'-0"5'-0" A B C D SLOPE.
GROUND OFREGARDLESS
PLUMB DRIVE BALL.ROOT
OF OUTSIDE PLACEWIRES.
GUY RETAIN TO DRILLEDOR
NOTCHED BE TO POSTSTEELS1.
APPROVED.BE
NOT WILL SYSTEMSGUYING
WIRE AND HOSERUBBER
SUBSTITUTE TOREQUESTS2.
YEAR. ONEWITHIN REMOVE4.
10 ga WIRE.
STRAPS. ATTACH WITH
THICK AND 1.5" WIDE
POLYETHYLENE, 40 MIL.
POLYROPYLENE OR
16" LONG
SEE CHART
STEEL POST
BY THE ENGINEER.
PROBLEM, OR AS DIRECTED
WIND CONDITIONS ARE A
WHERE VANDALISM, SOIL, OR
TREES IN A PLUMB CONDITION
OR NECESSARY TO MAINTAIN
REQUIRED UNLESS SPECIFIED
3. TREE STAKING IS NOT
OR APPROVED EQUAL.
POST (MnDOT 3401)
CHANNEL STEEL SIGN
10', 2.2 LB. FLANGED
(MnDOT 2571.3I1)
OR APPROVED EQUAL.
POST (MnDOT 3403)
ROLLED STEEL FENCE
REVISED - JANUARY / 01 / 2014
12"16"STANDARD PLANTING DETAILS
ACCEPTABLE PLANT STOCK GROWING RANGE LIMITS
SOURCE: USDA PLANT HARDINESS ZONE MAP
o
o
CANADA
ND
SD
NE
MN
IA
KS MO
IL
IN OH
MI
WI
MT
WY
CO
PA
NY
ZONES LEGEND TEMP. MIN.
3
4
FOLLOWS: AS LOCATED, IS SITE PROJECT THE WHERE ZONEMINNESOTA
THE IN HARDINESS FOR ACCEPTABILITY DOCUMENT STOCK, PLANT ALLFOR
SHOWN. LIMITS ACCEPTABLE THE WITHINYEARS
TWO LAST THE LEAST AT FOR GROWN CONTINUOUSLY STOCKPLANTA.
OR
SHOWN. LIMITS ACCEPTABLE THE FROMORIGINATING
STOCK GRAFT AND ROOT OR SOURCE SEED HAVINGLIMITS,
RANGE GROWING ACCEPTABLE THE OUTSIDE GROWN STOCK,LANTPB.
(MnDOT 3861.2C)
-34.4 TO -40 F
-28.9 TO -34.4 F
o -26.1 TO -28.9 F5a
QUEBEC
ONTARIO
SASKATCHEWAN
MANITOBA
LAKE
LAKELAKELAKE
LAKE
SUPERIOR
MICHIGANHURONERIE
ONTANO
3
4
5a
5b
4
3
4
2
5a
ZONES LEGEND
ACCEPTABLE ZONES
UNACCEPTABLE ZONES
2
1
1 0
LAKEWINNIPEGBAY
HUDSON
6
6
5b5b
5b and 6
0, 1, 2,
PLANTING SOIL
INPLACE CULTIVATED SOILS
THOROUGHLY MIXED WITH
SPECIFIED ADDITIVES
COMPOST AND OTHER
4 INCHES OF GRADE 2
MACHINE
SPADING
DIRECTION OF
MACHINE
SPADING
DIRECTION OF
PRIMARY TILLAGE - PASS 1
INCORPORATION TILLAGE - PASS 2
(MnDOT 2571.3D.2)
DEPTH
INPLACE SOIL
CULTIVATED
CUT
PRUNING
CORRECT
CLOSE
TOO
LONG
TOO
SLANTED
TOO
PRUNING
BRANCHES PRUNED TO LIVE BUD
BRANCHES PRUNED AT TRUNK
B B
C C
D
D
X
LIVE BUD
BRANCH COLLAR
RIDGE
BRANCH BARK
BRANCH
DEAD
:SAW
PRUNING WITH PRUNING TOSTEPS
A. POINT ATBRANCH
THE THROUGH WAY PARTCUT1.
A. TO B POINT FROMBRANCH
THROUGH COMPLETELYCUT2.
D. TO CPOINT
FROM CUT COLLARBRANCH AT3.
GROWTH. OF SEASON ONEAFTER
FORMATION CALLUSDISCONTINUOUS
IN RESULT WILL CLOSE)(TOO
X TO C POINTFROM CUTINCORRECT
GROWTH.
OF SEASON ONE AFTERFORMATION
CALLUS SHAPEDDOUGHNUT
CONTINUOUS IN RESULTWILL
) A TO B POINT FROM STUB THE
T NO BUT COLLAR BRANCH(LEAVING
D TO C POINTFROM CUTCORRECT
: NOTESPRUNING
SAW. PRUNINGOR
PRUNERTYPE-ISSORC SSHARP
AND CLEAN USINGPRUNE1.
SPRING.EARLY
OR SEASON DORMANTLATE
IS PRUNE TO TIME BESTTHE2.
JULY. OR JUNEMAY,
APRIL, IN OAKS PRUNINGAVOID3.
SHELLAC. OR PAINTLATEX
WITH WOUND ORSURFACE
CUT PAINT IMMEDIATELYJULY,
OR JUNE MAY, APRIL, INTREES
OAK TO OCCUR WOUNDSIF
OR NECESSARY IS PRUNINGIF4.
(MnDOT 2571.3E.1 and 2571.3K.2.a(9))
NOTESGENERAL
REQUIREMENTS. PROJECT SPECIFIC FOR PROVISIONS SPECIALSEE
OPERATIONS. PLANTING INITIAL STARTING BEFORE WORK PREPARATORYCOMPLETE
PLANTING. TO PRIOR 3861) (MnDOT WITH ACCORDANCE IN STOCK PLANT ALLACCEPT
2571.3D.2) (MnDOT WITH ACCORDANCE INOPERATIONS
CULTIVATION SOIL FOR COMPETENCY DEMONSTRATE WILL CONTRACTORTHE
2571.3F1) (MnDOT WITH ACCORDANCE INOPERATIONS
INSTALLATION PLANT ALL FOR COMPETENCY DEMONSTRATE WILL CONTRACTORTHE
PROTECTION
RODENT
3)
OF (3 DETAILS PLANTING STANDARD AND PROVISIONS SPECIALSEE
FERTILIZER PROVISIONS SPECIALSEE
COMPOST
MATERIAL
MULCH
BEDS
PLANTING
MASS
3) OF (3 DETAILS PLANTING STANDARDSEE
BED. PLANTING MASS ENTIRE MULCH IMMEDIATELY.DEFICIENCY
OR SURPLUS QUANTITY PLANT GROSS OF ENGINEERNOTIFY
SHRUB. THE OF CENTER THE TO TREE THE OF CENTERTHE
FROM MEASURED BE WILL RADIUS TREE. CONIFER EACHAROUND
RADIUS CLEAR 8' AND TREE DECIDUOUS EACH AROUNDSHRUBS
OF CLEAR RADIUS 5' PROVIDE OTHERWISE. SPECIFIEDUNLESS
SPACING, TRIANGULAR USE PLANTS. REMAINING WITH INFILL
UNIFORMLY THEN FIRST, PERIMETER THE ON ROWSSTAGGERED
IN BEDS PLANT SHEETS. ON SPECIFIED OTHERWISE UNLESSLESS,
OR 15' AT PLACED PLANTS FOR BEDS PLANTING MASSPREPARE
PREVENTION)
CRACK
(FROST
PAINTING
TREE
BRANCH. MAJORFIRST
TO LINE GROUND FROM CIRCUMFERENCE TREE PAINTACCEPTABLE.
IS PAINT LATEX WHITE EXTERIOR UNDILUTED ONLYASH.
MOUNTAIN AND CRABAPPLE MAPLE, LOCUST, LINDEN, OAK,PAINT
DIMENSIONS
PLANPLANTING
PLAN. FROM SCALING SUPERCEDE DIMENSIONSSTATED
2571.3G) (MnDOT GUIDELINESWATERING TYPEPLANT APPLICATION PERWATER
OF GALLONSAVERAGE
TREES
TRANSPLANTEDMACHINE 50-100
TREES
BURLAPPED ANDBALLED
20
TREES
CONTAINER AND ROOTBARE 15
SHRUBS
BURLAPPED ANDBALLED
10
SHRUBS
CONTAINER AND ROOTBARE 7
SEEDLINGSWOODY 4
VINES ANDPERENNIALS 3
REQUIREMENTS.
NOT GUIDELINES, ARE ABOVE LISTED AMOUNTS THELEVELS.
EXCESSIVE NOT BUT ADEQUATE AT MOISTURE SOILMAINTAIN
AND MONITOR TO RESPONSIBILITY CONTRACTOR'S THE ISIT
(MnDOT 2571.3D)
MnDOT 3890 COMPOST GRADE 2 UNLESS OTHERWISE SPECIFIED.
MnDOT 3882 MULCH MATERIAL TYPE 6 UNLESS OTHERWISE SPECIFIED.
LIVE BRANCH
3
4
(SHIGO METHOD)
A A
REFER TO MnDOT SPECIFICATIONS 2571, 2572, 3861, FOR GENERAL REQUIREMENTS.MIN NES
O
TA
DEPARTMEN
TOF TRANSPORTATION REVISED:
APPROVED:
12-11-2015
STATE DESIGN ENGINEER
STANDARD PLAN 5-297.301 1 OF 3
CHIEF ENVIRONMENTAL OFFICER
REVISION:
APPROVED: DECEMBER 11, 2015
ZONE BY DATESPLANTING
SPRINGDECIDUOUSROOT
BARE 21 APRIL 7 APRIL
TO TO
1 JUNE 1 JUNE
B&B
CONTAINER
21 APRIL 7 APRIL
TO TO
30 JUNE 30 JUNE
CONIFEROUS
21 APRIL 7 APRIL
TO TO
1 JUNE 17 MAY
PERENNIALS
1 MAY 1 MAY
TO TO
30 JUNE 30 JUNE
SEEDLINGS
21 APRIL 7 APRIL
TO TO
1 JUNE 1 JUNE
FALLDECIDUOUSROOT
BARE 1OCT. 10OCT.
TO TO
1NOV. 15NOV.
B&B
CONTAINER
25AUG. 25AUG.
TO TO
15OCT. 1NOV.
CONIFEROUS
25AUG. 25AUG.
TO TO
15SEPT. 15SEPT.
PERENNIALS
25AUG. 25AUG.
TO TO
15SEPT. 15SEPT.
3 4
DATES.PLANTING
DECIDUOUS FALL THE FOLLOW OR1ST
JUNE THAN LATER NO SPRING THEIN
PLACED BE MUST PERENNIALS ROOTBARE1.
ENGINEER. THE BYDETERMINED
AS CONDITIONS, SEASONALUPON
DEPENDING CHANGE MAY DATESACTUAL2.
SUMAC. AND OAKS,PLUM/CHERRY,
CRABAPPLE, WILLOW,MAPLE,
ASH, MOUNTAIN BIRCH,HONEYLOCUST,
IRONWOOD, LINDEN, HACKBERRY,POPLAR,
DOGWOOD, HAWTHORN,SPECIES:
FOLLOWING THE OF FORM ROOTBARE
FOR ALLOWED NOT IS PLANTINGFALL3.
PERIOD. ESTABLISHMENT PLANTTHE
OF YEAR FIRST THEDURING PLANTING)
(FALL SEPTEMBER AND PLANTING)(SPRING
MAY OF MONTH THE DURINGPLACED
BE MUST PLANTS REPLACEMENTALL4.
PLANT INSTALLATION PERIOD
BE SPECIFIED IN THE SPECIAL PROVISIONS.
5. MACHINE MOVED PLANTING DATES WILL
2
2
2
MIN. 2'-0"
A
B12"A
BBA
C 18"
MIN> 2'-0"
SPACING FROM TRUNK
HEIGHTSTANDARD PLANTING DETAILS
PLANTING DETAILS (1 OF 3)
DETAIL SEE STANDARD
FOR PLANTING SOIL
PLANTING DETAILS (1 OF 3)
DETAIL SEE STANDARD
FOR PLANTING SOIL
PLANTING DETAILS (1 OF 3)
DETAIL SEE STANDARD
FOR PLANTING SOIL
PLANTING DETAIL (2 OF 3)
SEE STANDARD
FOR MULCH DETAIL
SOIL
LOOSENED
(MnDOT 2571.3H)
MULCHINSTALLATION OF VINES
PLANTING DETAILS (1 OF 3)
DETAIL SEE STANDARD
FOR PLANTING SOIL
PLANTING DETAIL (2 OF 3)
SEE STANDARD
FOR MULCH DETAIL
CHAIN-LINK FENCE
INPLACE WALL
BIODEGRADABLE STRING
LATH WITH
FASTEN LOOSELY TO
OR FENCE
AGAINST THE WALL
TOP RESTS SNUGLEY
AT AN ANGLE SO THE
DRIVEN 12" INTO SOIL
1" x 36" WOOD LATH
VINE
5' BEYOND TERMINAL
BETWEEN VINES AND
MULCH CONTINUOUSLY
TO RIGHT
ROOT STOCK DETAILS
TO APPLICABLE
PLANT ACCORDING
NOTE:
CONIFEROUS TREE (RADIUS+3' min.)'CHIEF ENVIRONMENTAL OFFICER
REVISION:
APPROVED: DECEMBER 11, 2015 MIN NES
O
TA
DEPARTMEN
TOF TRANSPORTATION REVISED:
APPROVED:
12-11-2015
STATE DESIGN ENGINEER
STANDARD PLAN 5-297.301 2 OF 3
BALLED & BURLAPPED STOCK
PLANTING. TO PRIOR HOURS 24 THAN MORENOT
BUT HOUR ONE LEAST AT FOR WATER IN ROOTSSOAK1.
HOLE. OF BOTTOM AND SIDESSCARIFY2.
.ROOTS
AND TOP THE OF PRUNING CORRECTIVE WITHPROCEED3.
SOIL. PLANTING WITH BACKFILLIMMEDIATELY
AND PLUMB EVENLY. OUT ROOTS SPREADELEVATION.
SOIL FINISHED THE AT IS FLARE ROOT THE SOPLANT
SET HOLE. TO WATER FROM DIRECTLY PLANTTRANSFER4.
VOIDS. FILL ANDPLANTS
SETTLETO HOURS 2 WITHIN THOROUGHLYWATER5.
TIME. SECOND A WATER AND VOIDS FILLBACK6.
EXCESSIVE. IS MOISTURE SOIL UNLESSWATERING
SECOND THE OF HOURS 48 WITHIN MULCHPLACE7.
BARE ROOT STOCK
HOLE. OF BOTTOM AND SIDESSCARIFY1.
. ROOT AND TOP OF PRUNING CORRECTIVE WITHPROCEED2.
ROOTS.LINGD GIR STEM CORRECT ORREMOVE
ROOTS. FIBROUS CIRCLING PREVENT AND REDIRECTTO
MASS SOIL OF OUTSIDE SCORE AND CONTAINERREMOVE3.
GRADE. FINISHED THE ABOVE 2"TO
UP OR AT IS FLARE ROOT THE OF TOP THE SOPLANT
INSTALL SOIL. PLANTING COMPACTEDTHOROUGHLY
OR SOIL NATIVE UNDISTURBED ON PLANTSET4.
SOIL. PLANTING WITH BACKFILL ANDPLUMB5.
VOIDS. FILLAND
PLANT SETTLETO HOURS 2 WITHIN THOROUGHLYWATER6.
TIME. SECOND A WATER AND VOIDS FILLBACK7.
EXCESSIVE. IS MOISTURE SOIL UNLESSWATERING
SECOND THE OF HOURS 48 WITHIN MULCHPLACE8.
CONTAINER STOCK
MACHINE MOVED STOCK
HOLE. OF BOTTOM AND SIDESSCARIFY1.
PRUNING. CORRECTIVE WITHPROCEED2.
GROWN. PREVIOUSLY
WAS IT AS DEPTH SAME AT SOIL NATIVE ON PLANTSET3.
SOIL. PLANTING WITH BACKFILL ANDPLUMB4.
12". OF DEPTH MINIMUM A AND 18"OF
DISTANCE MINIMUM A TO BALLROOT THE TOADJACENT
IMMEDIATELY SOIL THE LOOSEN PLANTING,AFTER5.
VOIDS. FILLAND
PLANT SETTLETO HOURS 2 WITHIN THOROUGHLYWATER6.
TIME. SECOND A WATER AND VOIDS FILLBACK7.
EXCESSIVE. IS MOISTURE SOIL UNLESSWATERING
SECOND THE OF HOURS 48 WITHIN MULCHPLACE8.
(MnDOT 2571.3F)MIN. REQUIREMENTS SIZE SPADE TREEMINIMUM
HOLE. OF BOTTOM AND SIDESSCARIFY1.
PRUNING. CORRECTIVE WITHPROCEED2.
INTACT. USED), (IF BASKET, WIRE AND BURLAPWITH
GRADE FINISHED THE ABOVE 2" TO UP OR AT ISFLARE
ROOT THE SO PLANTPLACE SOIL. PLANTINGCOMPACTED
THOROUGHLY OR SOIL NATIVE UNDISTURBED ON PLANTSET3.
INTERVALS. 6" AT BURLAP TREATED REMAININGSLIT4.
PLANT. WATER THEN ROOTBALL,THE
OF TOP THE OF 12" APPROXIMATELY WITHIN TOBACKFILL5.
ROOTS.
RDLING GI STEM CORRECT OR REMOVE TWINE. ALLREMOVE
BALL. THE OF 1/3 TOP THE FROM NAILS ANDBURLAP
ALL REMOVE GREATER. IS WHICHEVER RINGSHORIZONTAL
TWO TOP THE OR BASKET THE OF 1/3 TOP THEREMOVE6.
SOIL. PLANTING WITH BACKFILL ANDPLUMB7.
VOIDS. FILLAND
PLANTS SETTLE TO HOURS 2 WITHIN THOROUGHLYWATER8.
TIME. SECOND A WATER AND VOIDS FILLBACK9.
EXCESSIVE. IS MOISTURE SOILUNLESS
WATERING SECOND THE OF HOURS 48 WITHIN MULCHPLACE10.
DIMENSIONS HOLEPLANTING
BALL. SOIL OF BOTTOM TOFLAIR
ROOT FROM MEASUREMENT EXCEED NOT SHALL PLANTS CONTAINER AND B&B FOR DEPTHHOLE
TYPEPLANT INCLUDINGAND
TO UP SIZEPLANT
WIDTH
HOLE MINIMUM(A)
DEPTHHOLE
APPROXIMATE(B)
TREES
ORNAMENTAL
&DECIDUOUS
B.R.3'46"13"
B.R4'46"14"
B.R.5'48"14"
B.R.6'54"15"
B.R7'60"16"
B.R.8'66"19"
B.R.0.75"48'12"
B.R.1"54"14"
B.R.1.25"60"14"
B.R.1.5 66"15"
B.R1.75"72"16"
B.R.2"84"19"
B.B.4'42"11"
B.B.5'48"12"
B.B.6'52"14"
B.B.8'66"16"
B.B.10'66"16"
B.B.12'48"16"
B.B.1"54"14"
B.B.1.25"56"15"
B.B.1.5"61"15"
B.B.1.75"66"16"
B.B.2"72"16"
B.B.2.5"84"19"
B.B.3"96"20"
B.B.3.5"114"23"
B.B.4"126"25"
PERENNIALSAND
ROSESSHRUBS,
DECIDUOUS
B.R.12"24"7"
B.R.15"28"8"
B.R.18"30"8"
B.R.2'33"9"
B.R.3'42"11"
B.B.4'48"12"
TRENCH.CONTINUOUS
A INSPACING
ON-CENTERUPON
BASED BESHALL
WIDTH ANDDEPTH
HOLEPERENNIAL
B.R.5'54"14"
B.R.6'60"14"
B.B.18"27"7"
B.B.2'30"8"
B.B.3'36"9"
B.B.4'42"11"
B.B.5'48"12"
B.B.6'54"14"
+3 X
+1 X
MULCH AREA CALCULATOR
PLANT OFTYPE PLANT PER FT.SQ.
TREESCONIFEROUS 2
TREESORNAMENTAL
ANDDECIDUOUS
GRASSORNAMENTAL
PERENNIALS,
BUSHS,ROSE
SHRUBS,DECIDUOUS
ANDCONIFEROUS
SPACING xSPACING
VINES 2 xSPACING
2
= 3.1416
SPADE DIAMETER
TREES OR SHRUBS
MACHINE-MOVED
3 x
.TEMS MAIN ORTRUNK
THE AT SHRUBSAND
S TREE FROM 6" THANMORE
NO AND 3" THANLESS
NO BACK MULCHPULL1.
DEPTH.3"
MINIMUM A ATMAINTAINED
IS DEPTH MULCHTHE
IF PERIOD ESTABLISHED THE
THROUGHOUTACCEPTABLE
IS MULCHDETERIORATING
ORSUBSIDING2.
DEPTH.MAXIMUM
6" THE EXCEEDNOT
DO; DEPTHMINIMUM 3" THE
BELOWWHEN MULCH ADD3.
REPLACED. ANDREMOVED
BE MUST SOILWITH
CONTAMINATEDMULCH4.WALL INSTALLATION FENCE INSTALLATION
DIMENSIONS HOLEPLANTING
BALL. SOIL OF BOTTOM TOFLAIR
ROOT FROM MEASUREMENT EXCEED NOT SHALL PLANTS CONTAINER AND B&B FOR DEPTHHOLE
TYPEPLANT INCLUDINGAND
TO UP SIZEPLANT
WIDTH
HOLE MINIMUM(A)
DEPTHHOLE
APPROXIMATE(B)
TREES
CONIFEROUS
B.B2'36"10"
B.B3'42"11"
B.B4'51"13"
BUDSTERMINAL
CONTAINWILL
BRANCHESCONIFER
ALL OF 2/3 LEASTAT
B.B5'60"13"
B.B6'66"15"
B.B7'72"16"
B.B8'81"18"
B.B9'90"20"
B.B10'102"21"
B.B12'114"24"
SHRUBS
CONIFEROUS B.B.18"24"7"
B.B.3'48"12"
(UPRIGHT)
SHRUBS
CONIFEROUS B.B. SPR18"30"8"
B.B. SPR2'36"9"
(SPREADING)
PLANTSGROWN
CONTAINER
PLUGS /CELLPACKS 6"2.5"
CONT.2.25"7"3"
CONT.3.5"10"3"
CONT.4"11"4"
CONT.4.5"13"4"
CONT. QT6"/1 15"5.5"
CONT.1#18"6"
CONT.2#23"7.5"
CONT.3#29"8.5"
CONT.5#30"11"
CONT.7#37"11"
CONT.15#44"14"
CONT.10#45"15"
CONT.20#60"16"
CONT.25#72"17"
SEEDLINGS
SEEDLING6"15"14"
SEEDLING9"18"14"
SEEDLING12"23"16"
SEEDLING18"30"16"
SEEDLING2'36"18"
VINES
B.R. MED YR.1 15"11"
B.R. 1 NO. YR.1 17"14'
B.R. MED. YR.2 33"12"
B.R. 1 NO. YR.2 42"15"
PLANTING DETAILS (1 0f 3)
DETAIL SEE STANDARD
FOR PLANTING SOIL
INSTALLATION OF PLANTS
SIZEDIAMETER
SPADE(C)
CALIPER
TREE,OAK
RTREE,CALIPE
LORNAMENTA
/DECIDUOUS
HEIGHTTREE,
CONIFEROUS
42"
60"
78"
85"
1.5" to1"
2.5" to1.5"
3.5" to2.5"
5" to3.5"
3" to2"
4" to3"
6" to4"
8" to6"
7' to5'
9' to7'
14' to9'
18' to14'
3 / 5 x HEIGHT
DECIDUOUS TREE (3' min.)
DECIDUOUS SHRUB (3'min.)
CONIFEROUS AND
TRANSPLANT (RADIUS+2' min.)MAX6"
APPROVAL.ENGINEER
TO SUBJECT CONTRACTOR, THE BY DETERMINED ARE USE TO TYPEWHICH
AND SOILS DRAINED POORLY FOR DETAILS PLANTING USING FOR NEEDTHE1.
NOTE:MASSROOT1/41''43115"ABCD8' FOR CONIFEROUS TREES
5' FOR DECIDUOUS TREES
'12" TO 14"2'-0" MIN.STANDARD PLANTING DETAILS
PLANT SPACING IN MASS BEDS
(MnDOT 2571.3D.2(8))
GRANULAR FILTER
TILE DRAINAGE
MINI-BERM
GRADE.FINISHED
THAN HIGHER 1"-3" MASS ROOT THE OF TOP THE PLACING ALLOW TO BED OR HOLEEXCAVATE1.
GRADE. LOWER A AT DAYLIGHTING TILE DRAIN DIAMETER MINIMUM 4"INSTALL2.
). 3 OF (2 DETAILS PLANTING STANDARD SEE TYPE.ROOT TO ACCORDING PLANTINGCOMPLETE3.
GRADE.FINISHED
THAN HIGHER 1"-3" MASS ROOT OF TOP THE PLACING ALLOW TO BED OR HOLEEXCAVATE1.
SUBSOIL. DRAIN ADEQUATELY TOLAYER
SOIL PAN HARD DRAINED POORLY OR IMPERVIOUS THROUGH ENTIRELY HOLES DIAMETER 8"AUGER2.
DRAINAGE.
POSITIVE FOR NECESSARY IF 8" ADDITIONAL AN RE-AUGER DRAINAGE. POSITIVE FORTEST3.
3). OF (2 DETAILS PLANTING STANDARD SEE TYPE.ROOT TO ACCORDING PLANTINGCOMPLETE5.
MASS. ROOT THE OF DEPTH THE 1/4 BED OR HOLEEXCAVATE1.
HOLE. IN MASS ROOTSET2.
HEIGHT. BERMTHE
TIMES 3 OF WIDTH A TO BASE BERM THE EXTEND. SOILPLANTING WITH BERMCONSTRUCT3.
3). OF (2 DETAILS PLANTING STANDARD SEE TYPE.ROOT ACCORDING PLANTINGCOMPLETE4.
PLANTING ON SLOPES
(MnDOT 2571.3I.4)
RIM. TOPOUTWARD-FLARED
AN ANDPERFORATION
LINE LASER A WITHTUBES
POLYPROPYLENETRANSLUCENT
SEMI AND RIGIDTWIN-WALL,
EXTRUDED, SEAMLESS,USE1.
TWISTING.
OR DISLODGINGPREVENT
TO STAKE OAK WHITE 1''x
1'' A TO ATTACHED-TIESCABLE
NYLON WITH SHELTERSECURE2.
ROOTS. TREE THEDISTURBING
WITHOUT SURFACE SOILTHE
BELOW 1'' OF MINIMUM ATUBE
THE OF BOTTOM THEEMBED3.
SHOWN. AS DOWNNETTING
PULL TUBE. THE OFTOP
THE OVER SLEEVE ANDCOVER
NETTINGPHOTODEGRADABLE
PLASTIC APLACE4.
(MnDOT 2571.3I.2)
2". END CUT THE OVERLAPCLOTH).
(HARDWARE MESH WIRE WELDED GALVANIZED GRID 0.25" USING CYLINDER DOUBLE-LAYERED AFORM1.
STEM. TREE THE OFCENTER
THE FROM 7" GROUND, THE INTO STAKES OAK WHITE HEARTWOOD OPPOSING 1" x 1" TWODRIVE2.
OVERLAP. THE ALONG CENTER ON 4" APPROXIMATELY SPACE OVERLAP. THE ALONG-TIESCABLE OR
WASHERS AND SCREWS EITHER, USING STAKES THE OF OUTSIDE THE TO CYLINDER MESH THESECURE3.
WASHERS. WITH LONG 3/4" x DIA. 1/8" GALVANIZED HEAD ROUND BE SHALLSCREWSa.
OR
.STRENGTH
TENSILE 120LB TO 75LB BETWEEN AND LONG 8" LEAST AT, NYLON BE SHALLTIES-CABLEb.
ROOTS. TREETHE
DISTURBING WITHOUT SURFACE SOIL THE BELOW 1" CYLINDER MESH THE OF EDGE LOWER THEEMBED4.
CYLINDER. THE OF TOPTHE
WITH FLUSH BE WILL STAKE CYLINDER. THE OF TOP THE AT PERMITTED BE NOT WILL EDGESCUT5.
DETAIL. PLACEMENT MULCH IN SPECIFIED ASTRUNK
THE FROM BACK PULLED BE SHALL AND DEPTH 3" EXCEED NOT SHALL CYLINDER THE WITHINMULCH6.
GUARDS. RODENT HEIGHT MIN. 12" OFINSTALLATION
PERMIT TO REMOVED BE TO HAVE MAY BRANCHES LARCH AND PINE OF WHORL BOTTOMTHE7.
TREES. SPRUCE ONPLACE NOT DO TREES, LARCH AND PINE DECIDUOUS, ALL ONINSTALL8.
CONIFEROUS TREES
12" MIN. HT. FOR
DECIDUOUS TREES
24" MIN. HT. FOR
WIRE MESH
STAKE
(MnDOT 2571.3I.1)
10 ga WIRE.
STRAPS. ATTACH WITH
THICK AND 1.5" WIDE
POLYETHYLENE, 40 MIL.
POLYROPYLENE OR
16" LONG
SEE CHART
FENCE POST
HOT-ROLLED STEEL
SIZING POSTSTEEL
CALIPER TYPE POSTSTEEL A B C D
EQUAL.APPROVED
OR 3403) (Mn/DOTPOST
FENCE STEELHOT-ROLLED
7'-0"MIN.
3'-0"4'-0"3'-0"
EQUAL. APPROVED OR3401)
(Mn/DOT POST SIGNCHANNEL
FLANGED LB. 2.210',
10'-0"MIN.
4'-0"6'-0"5'-0"
PLANTING DETAIL FOR POORLY DRAINED SOILS
NOTE:
BASIN. WATERING THE OF HALF UPHILLTHE
CONSTRUCT NOT DO GREATER, OR SLOPES 1:2ON1.
SEEDLING TREE SHELTER
PREVAILING WIND
RODENT PROTECTION
STAKING AND GUYING
SLOPE.
GROUND OFREGARDLESS
PLUMB DRIVE BALL.ROOT
OF OUTSIDE PLACEWIRES.
GUY RETAIN TO DRILLEDOR
NOTCHED BE TO POSTSTEELS1.
APPROVED.BE
NOT WILL SYSTEMSGUYING
WIRE AND HOSERUBBER
SUBSTITUTE TOREQUESTS2.
YEAR. ONEWITHIN REMOVE4.
BY THE ENGINEER.
PROBLEM, OR AS DIRECTED
WIND CONDITIONS ARE A
WHERE VANDALISM, SOIL, OR
TREES IN A PLUMB CONDITION
OR NECESSARY TO MAINTAIN
REQUIRED UNLESS SPECIFIED
3. TREE STAKING IS NOT
PLANTING DETAIL (2 OF 3)
SEE STANDARD
FOR MULCH DETAIL
AND 50% INPLACE SOIL.
4. THOROUGHLY BACKFILL AUGER HOLES WITH A UNIFORM INCORPORATED MIXTURE OF 50% SAND
INCHES
THAN 4
LESS
INCHES
THAN 4
GREATER
CHART ON STANDARD PLANTING DETAILS (2 OF 3)
MINIMUMS FROM THE PLANTING HOLE DIMENSIONS
HOLE EXCAVATION WIDTH IN ACCORDANCE WITH
PLANTING DETAILS (1 OF 3)
DETAIL SEE STANDARD
FOR PLANTING SOIL
(2 OF 3)
PLANTING DETAIL
SEE STANDARD
FOR MULCH DETAIL
PLANTING DETAIL (2 OF 3)
SEE STANDARD
FOR MULCH DETAIL
HOLD WATER IN BASIN.
SOIL RIDGE TO
WATER BASIN
DOWN HILL HALF
DETAILS (2 OF 3)
SEE STANDARD PLANTING
ROOT TYPE.
PLANT ACCORDING TO
PLANTING DETAILS (1 OF 3)
DETAIL SEE STANDARD
FOR PLANTING SOIL
WATER BASIN
UPHILL HALF
EXISTING GRADE
CUT AREA
NETTING
TUBE SHELTER
PERFORATION
LASER LINE
(LENGTH VARIES)
STAKE
RECESS
FORMED TUBE
SECURE STAKE IN
CABLE-TIE TO
PLANTING DETAILS (1 OF 3)
DETAIL SEE STANDARD
FOR PLANTING SOIL
PLANTING DETAIL (2 OF 3)
SEE STANDARD
FOR MULCH DETAIL
HOLES
8" AUGER
PLANTING DETAIL (1 OF 3)
SEE STANDARD
FOR MULCH DETAIL
TILE
4" DRAIN
PLANTING DETAILS (1 OF 3)
DETAIL SEE STANDARD
FOR PLANTING SOIL
PLANTING DETAILS (1 OF 3)
DETAIL SEE STANDARD
FOR PLANTING SOIL
CHIEF ENVIRONMENTAL OFFICER
REVISION:
APPROVED: DECEMBER 11, 2015 MIN NES
O
TA
DEPARTMEN
TOF TRANSPORTATION REVISED:
APPROVED:
12-11-2015
STATE DESIGN ENGINEER
STANDARD PLAN 5-297.301 3 OF 3
25'-0"
<2"
2-4"
>4-9"
>9-14"
>14-19"
>19"
2'
4'
6'
10'
12'
15'
2'
2.5'
2.5'
3'
3.25'
4'
TREE PROTECTION ZONE
A B CMINNESOTADEPARTMENTOFTRANSPORTATION9"2 1/2"4"2 1/2"12"
6"6"4'-6"B
CUTILITY CONSTRUCTION
NOTE:
TAPE.THE
TWIST TO NOT CAREFULBEING DBH,THE
AT, TREE THE OF GIRTH THE AROUNDTAPE
THE WRAP TAPE, DIAMETER TREE AUSING2.
(MnDOT 2572.3A.5)CTIONRY FOR DEPTHCRITICAL ROOT
DRIP LINE
TEMPORARY FENCE
(MnDOT 2572.3A.1)
CUT
PRUNING
CORRECT
CLOSE
TOO
LONG
TOO
SLANTED
TOO
PRUNING
BRANCHES PRUNED TO LIVE BUD
BRANCHES PRUNED AT TRUNK
B B
C C
D
D
X
(SHIGO METHOD)
LIVE BUD
BRANCH COLLAR
RIDGE
BRANCH BARK
BRANCH
DEAD
:SAW
PRUNING WITH PRUNING TOSTEPS
A. POINT ATBRANCH
THE THROUGH WAY PARTCUT1.
A. TO B POINT FROMBRANCH
THROUGH COMPLETELYCUT2.
D. TO CPOINT
FROM CUT COLLARBRANCH AT3.
GROWTH. OF SEASON ONEAFTER
FORMATION CALLUSDISCONTINUOUS
IN RESULT WILL CLOSE)(TOO
X TO C POINTFROM CUTINCORRECT
GROWTH.
OF SEASON ONE AFTERFORMATION
CALLUS SHAPEDDOUGHNUT
CONTINUOUS IN RESULTWILL
) A TO B POINT FROM STUB THE
T NO BUT COLLAR BRANCH(LEAVING
D TO C POINTFROM CUTCORRECT
: NOTESPRUNING
SAW. PRUNINGOR
PRUNERTYPE-ISSORC SSHARP
AND CLEAN USINGPRUNE1.
SPRING.EARLY
OR SEASON DORMANTLATE
IS PRUNE TO TIME BESTTHE2.
JULY. OR JUNEMAY,
APRIL, IN OAKS PRUNINGAVOID3.
SHELLAC. OR PAINTLATEX
WITH WOUND ORSURFACE
CUT PAINT IMMEDIATELYJULY,
OR JUNE MAY, APRIL, INTREES
OAK TO OCCUR WOUNDSIF
OR NECESSARY IS PRUNINGIF4.
(MnDOT 2571.3E.1 and 2571.3K.2.a(9))
A A
Tree Protection Area
DO NOT ENTER THE FENCED AREA
construction
protect these trees during
We appreciate your cooperation to
ZONE
CRITICAL ROOT
DRIP LINE
SIGN
PROTECTION
TREE
LIMITS
CONSTRUCTION
ZONE
CRITICAL ROOT
DRIP LINE
DESIRED
A
HEIGHT," (DBH).
TERMED THE "DIAMETER AT BREAST
4'-6" FEET ABOVE THE GROUND AND IS
1. (A) IS THE DIAMETER OF TREES MEASURED
LIVE BRANCH
ZONES
CRITICAL ROOT
DRIP LINE
CORNERS. RADIUS 0.75"WITH
SIGN 3/8" X 9" X 12"FABRICATE1.
LETTERING.
BLACK WITH WHITE BE SHALLSIGN2.
SCREWS. WOODLENGTH
1" USING POST TO SIGNATTACH3.
CONSTRUCTION.ANY
TO PRIOR SPECIFIED, AS LIMITS CONSTRUCTION ORDRIPLINE
TREE'S THE AT FENCE TEMPORARY INSTALL ANDFURNISH1.
LINE. DRIP THE BEYOND FEET 25 FENCE PLACE POSSIBLEWHEN2.
INTERVALS.
50' AT FENCE ALONG SIGNS PROTECTION TREEPLACE3.
GROUND
4.5 ft ABOVE
DIAMETER AT
MEASURE TREE
FROM TREE TRUNK
MINIMUM DISTANCE
TREE
MACHINE
DRILLING
DIRECTIONAL
BORE TUNNEL
TUNNEL
DEPTH OF
MINIMUM
BRIDGE
ROOT SYSTEM
OF VEGETATION
PROTECTION AND RESTORATION'OTHER VEGETATION PROTECTION MEASURES
ROOT SYSTEM BRIDGE WOODCHIP MULCH BED
TIMBERS
STEEL PLATES
MULCH
6" WOODCHIP
(MnDOT 2572.3A.12)
EITHER: MUST CONTRACTOR THEZONES,
ROOT OVER PASS MUST VEHICLES CONSTRUCTIONIF
TRUNK. TREE THE TORADIALLY
PLACED TIMBERS WOOD ON SUPPORTEDPLATE
STEEL WITH BRIDGES SYSTEM ROOTCONSTRUCT1.
OR
3733). (MnDOT GEOTEXTILE III TYPE AOVER
MULCH WOODCHIP OF LAYER INCH 6 APLACE2.
CLEAN ROOT CUTTING CONSTRUNECESSAMAXIMUMAREA
EXCAVATION
CLEAN ROOT CUTTING
PLOW OR OTHER APPROVED ROOT CUTTER.
ROOTS WILL BE CLEANLY CUT BY A VIBRATORY
THE ENGINEER, PRIOR TO EXCAVATION, ALL TREE
1. WHEN DESIGNATED IN THE PLAN OR DIRECTED BY
MINIMUM DEPTH NECESSARY FOR CONSTRUCTION.
2. THE TREE ROOTS WILL BE CUT CLEANLY TO THE
EXPOSED ROOTS.
3. IMMEDIATELY, AND CLEANLY CUT DAMAGED AND
OF ADJACENT SOIL.
SHALL BE IMMEDIATELY COVERED WITH A 6" LAYER
4. ROOT ENDS EXPOSED BY EXCAVATION ACTIVITIES
AREA
UNDISTURBED
(MnDOT 2572.3A.2)
EXISTING GROUND
BACKFILL
FILL
SANDY LOAM
PIPE
PERFORATED
ZONE
(MnDOT 2572.3A.4)
.BORROW
TOPSOILROOTING UNCOMPACTED ISTREES,
OF LINE DRIP THE WITHIN REQUIRED FILLANY1.
SYSTEM. AERATION AN ASOPENING
END DAYLIGHTED ONE LEAST AT WITHPIPE
PERFORATEDINGPLAC REQUIRE MAY FILLEXCESSIVE2.
ROOTING TOPSOIL BORROW SLOPE ROUNDING
TEMPORARY FENCE
REDUCED ROUNDING
NORMAL ROUNDING
ZONE
CRITICAL ROOT
DRIP LINE
CONTRACTOR. THE BY PRESERVED BE WILL ANDENGINEER
THE BY OR PLAN THE IN IDENTIFIED BE WILLLIMITS
CONSTRUCTION PROPOSED THE NEAR TREESSIGNIFICANT
FENCE. TEMPORARY THEPLACE1.
ROUNDING. SLOPE NORMAL BY DISTURBEDARE
ZONES ROOT WHERE ROUNDING SLOPEREDUCE2.
DAMAGE. ROOT UNNECESSARY ORLOSS
TREE AVOID TO STEEPNESS BACKSLOPEVARY3.
CHIEF ENVIRONMENTAL OFFICER
REVISION:
APPROVED: DECEMBER 11, 2015 MIN NES
O
TA
DEPARTMEN
TOF TRANSPORTATION REVISED:
APPROVED:
12-11-2015
STATE DESIGN ENGINEER
STANDARD PLAN 5-297.302 1 OF 1
SHELLAC.
DRESSING MATERIAL CONSISTING OF LATEX PAINT OR
(WITHIN 5 MINUTES) TREATED WITH A WOUND
5. EXPOSED CUT OAK ROOTS SHALL BE IMMEDIATELY
2571
734 Minnesota 2020 Standard Specifications
2565.5 BASIS OF PAYMENT
The Department will pay for new Traffic control signal systems on the basis of the following
schedule:
Item No Item Unit
2565.501 Emergency Vehicle Preemption System lump sum
2565.501 Traffic Control Interconnect lump sum
2565.502 APS Push Button Station each
2565.502 APS Push Button & Sign each
2565.502 APS Cabinet Control Unit each
2565.502 APS Pole Mounting Adaptor each
2565.502 APS Push Button Mounting Spacers each
2565.516 Traffic Control Signal System system
2571 PLANT INSTALLATION AND ESTABLISHMENT
2571.1 DESCRIPTION
This Work consists of providing, installing, and establishing trees, shrubs, vines, perennials, and
turf of the species, variety, grade, size or age, and root category specified for the locations shown on the
Plans, including planting or transplanting plants provided by the Department.
Perform this Work in accordance with the Inspection and Contract Administration Manual for
MnDOT Landscape Projects (ICAMMLP), current edition at the time of letting.
2571.2 MATERIALS
A Nursery Plant Stock .............................................................................................................. 3861
Provide plants of the species shown on the Plans in the variety, grade, and size or age indicated.
A.1 Investigations and Supply of Planting Stock and Materials
By submitting a proposal and accepting Award of the Contract in accordance with 1205,
“Examination of Proposal Package and Site of Work,” the Contractor assures commitments from
suppliers, and delivery of the plant stock and Materials required to complete the Contract.
A.2 Plant Stock and Materials Documentation
Provide the following plant stock and Materials documentation:
(1) Fifteen Working Days prior to beginning plant installation and establishment
Work, provide the Engineer with a Department-preliminary Certificate of
Compliance for Plant Stock, Landscape Materials, and Equipment (copy of form
provided in the current edition of ICAMMLP)
(2) At least five Working Days before plant stock delivery to the Project, provide
the Engineer with the following:
(a) A copy of a valid nursery stock, dealer or grower certificate, registered
with the Minnesota Department of Agriculture (MDA), a current
nursery certificate or license from a state or provincial Department of
Agriculture for each plant stock supplier, or both
(b) Documentation certifying that plant Material shipped from out-of-
state nursery vendors subject to state and federal quarantines, is free
of currently regulated pests, including Emerald Ash Borers, and Gypsy
Moths. To determine if Minnesota vendors are subject to quarantines,
call the MDA Supervisor of Nursery Inspection and Export Cert ification
at (651) 201-6388
2571
Minnesota 2020 Standard Specifications 735
(c) An updated Certificate of Compliance, signed by the Contractor’s
authorized representative
(3) Upon delivery of plant stock and Materials to the Project, provide the Engineer
with the following:
(a) Bills of lading or shipping documents for plant stock and landscape
Materials delivered to the Project
(b) An updated and signed Certificate of Compliance, if necessary, to
reflect deviations from the previous Certificate of Compliance
documentation
(4) As a condition for authorization of payments, provide the Engineer with vendor
invoices or billing statements for plant stock and Materials used on the Project
The Engineer will consider Work performed with plant stock, Materials, or Equipment
that was misrepresented in the documentation, as unauthorized Work.
A.3 Substitutions
The Engineer may allow substitutions in accordance with 1605, “Substitute Materials.”
Upon receipt of written documentation that plants shown on the Plans are not available in
quantities to fulfill the Contract requirements, the Engineer, in consultation with the Project
designer, may authorize specific substitute plants or may extend the Contract Time to ensure
availability of the plants shown on the Plans. Provide substitutions equal to or better than the
initially specified Materials.
2571.3 CONSTRUCTION REQUIREMENTS
A General
A.1 Landscape Specialist
Provide a Landscape Specialist, certified by the Department, to perform or supervise
plant installation and establishment Work. Provide documentation of the Certified Landscape
Specialist prior to beginning plant installation and establishment Work . Landscape Specialists
may obtain certification by completing the 1-day Department Landscape Project Inspection and
Administration Training Class and passing a test administered by the Department’s
Environmental Planning and Design Units. Full certification is valid for 3 years. Landscape
Specialists may obtain provisional certification for 1 year by passing a test after completing the
Department’s online training class.
A.2 Notices by Contractor
Notify the Engineer at least 3 Calendar Days before planned deliveries of initial and
replacement planting stock to the Project to allow for inspection scheduling. Notify the Engineer
at least 24 hours before beginning or changing distinct operations. Include the following in the
notice:
(1) The Project number
(2) Engineer’s name
(3) Notification date
(4) Intended dates and times for the operations
(5) The planned locations of Work
Provide notifications in writing, using confirmable e-mail or facsimile transmissions.
2571
736 Minnesota 2020 Standard Specifications
A.3 Unauthorized Work
The Engineer will consider Work performed as follows to be unauthorized Work:
(1) Without required and acceptable documentation and notifications
(2) Without supervision by a certified landscape specialist
(3) Without conducting required and acceptable competency tests
(4) In conflict with the working hours of the Contract
A.4 Required Equipment
Provide Equipment meeting the requirements of 1805, “Methods and Equipment,” and
with the following available on the Project at all times:
(1) At least 1 portable compaction tester capable of measuring compaction in the
soil to at least 18 inches deep
(2) At least 1 soil recovery probe, or a soil moisture probe for assessment of soil
moisture conditions
(3) At least 1 tree caliper with measurement readings in inches
B Preconstruction Work
Preconstruction Work includes:
(1) Attending a landscaping preconstruction meeting
(2) Submitting landscaping preconstruction documentation
(3) Mobilizing Equipment and supplies to the landscaping Project
(4) Protecting existing vegetation, resources, and property in accordance with the Plans,
Special Provisions, and 1712, “Protection and Restoration of Property,” 2031, “Field
Office and Laboratory,” 2557, “Fencing,” and 2572, “Protection and Restoration of
Vegetation”
C Staking Planting Holes and Beds
Stake the exact locations and layouts for the landscape designer and Engineer’s approval.
To remedy unanticipated, localized, or seasonal conditions that may hinder plant establishment,
the Contractor may request the Engineer’s approval to:
(1) Relocate plantings
(2) Make plant substitutions
(3) Modify soil or drainage characteristics
D Preparing Planting Holes and Planting Beds
To prevent site compaction and damage, do not Work in planting holes and bed areas if the soil
moisture is greater than field capacity.
D.1 Utilities
Before cultivating soil or excavating holes on the Project, meet the requirements of
1507, “Utility Property and Service.”
The Contractor may request the Engineer’s approval to relocate plantings to avoid
unanticipated conflicts with utilities.
D.2 Weed Control and Soil Cultivation
Apply herbicide to actively growing vegetation beginning in spring or fall. Before
cultivating individual planting holes and bed areas, kill turf and weed growth within the limits of
planting areas that will receive mulch in accordance with the following:
2571
Minnesota 2020 Standard Specifications 737
(1) Mow existing vegetation to at least 3 inches at least 7 Calendar Days before
spraying herbicide. Remove the cuttings. Allow the vegetation to regrow to a
height from 4 inches to 8 inches before applying the herbicide.
(2) At least 3 Calendar Days before applying herbicide, submit to the Engineer,
labels of the intended herbicides and a copy of a valid MN Pesticide Applicator
License, including Category A and Category J.
(3) Spray and kill turf and weeds, including the top growth and roots, only within
designated areas using a non-selective, non-residual post emergent herbicide
containing 41 percent glyphosate as the active ingredient. Ensure personnel,
licensed by the MDA and experienced in the use of chemical pesticides perform
the Work in accordance with the manufacturer’s instructions and
recommendations. Apply the herbicide to dry foliage on actively growing
vegetation. Apply the herbicide in August or early September before the fall or
spring Plant Installation Period (PIP) as required by the Contract. If an August or
September application is not possible for the spring PIP, apply the herbicide in
late April or early May. If precipitation occurs within 6 hours after applying
herbicide, reapply herbicide as needed to achieve 100 percent kill.
(4) Before beginning soil cultivation Work, schedule and perform a competency
test to the satisfaction of the Engineer. The Engineer considers a satisfactory
competency test one that demonstrates acceptable soil cultivation,
incorporation of soil additives, compaction levels, and soil drainage in
1 planting bed area and 1 individual tree planting area.
(5) Before placing soil additives as shown on the Plans, use a spading machine to
deep cultivate the planting hole and bed areas by loosening the soil to at leas t
12 inches deep and a compaction level of no more than 200 psi to this depth,
as measured from the finished grade elevation of the soil. The Engineer may
approve other Equipment to address site constraints, if requested by the
Contractor. For hydraulic spade-type, machine-moved tree-transplanting, the
Engineer will not require planting hole cultivation, other than loosening the soil
outside the soil-ball perimeter in accordance with the Standard Plans shown on
the Plans.
(6) Unless otherwise shown on the Plans, add 4 inches of Grade 2 compost, in
accordance with 3890, “Compost” and other soil additives shown on the Plans
or as requested by the Contractor and approved by the Engineer, over the
cultivated planting hole and bed areas and use a spading machine to
incorporate it to a depth of at least 12 inches, as measured from the finished
grade elevation of the soil.
(7) Use a compaction tester to ensure compaction in the planting hole and bed
areas does not exceed 200 psi to a depth of at least 16 inches. If Contractor-
operations result in zones of hardpan or excessively compacted soil, repeat
deep cultivation or de-compact the subsoil in accordance with 2106.3I,
“Finishing Operations,” specifically the requirements for turf establishment
areas, at no additional cost to the Department.
(8) Ensure drainage in the planting hole and bed areas. For suspected drainage
problems, perform a percolation test by filling a 16 inches deep planting hole
with water and measuring the time it takes the water to drain from the hole.
The Engineer considers adequate drainage equal to or greater than a
percolation rate of 1/2 inch per hour. If drainage does not meet these
requirements, request approval from the Engineer to relocate or delete
affected planting locations or proceed with Extra Work using one or a
combination of the Standard Plans for poorly drained soils, as shown on the
Plans.
2571
738 Minnesota 2020 Standard Specifications
(9) Apply Temporary Erosion Control Measures in accordance with the NPDES
Permit, SWPPP notes, and 2573, “Storm Water Management.” The Contractor
may use Type 6 wood chip mulch at a depth no more than 1 inch for temporary
erosion control in prepared planting bed areas.
D.3 Wet Soils, Rock, and Debris
If the Contractor encounters excessively wet soils, bedrock, or excessive quantities of
boulders and construction debris, the Contractor may request the Engineer’s approval to
relocate or delete plantings, or modify soil or drainage characteristics in accordance with the
alternative options in the Standard Plans shown on the Plans.
E Delivery and Storage of Plants
Before installation, the Engineer will provide for inspection and acceptance of plant stock
delivered to the Project in accordance with the current edition of the ICAMMLP and 3861, “Plant Stock.”
Install plant stock on the day of delivery to the Project unless using temporary storage methods.
Before installation, keep the roots of plants completely covered with a moisture -holding Material
consisting of wood chips, straw, sawdust, moss, or soil. Keep the moisture-holding Material continuously
moist and protect it from drying winds, direct sunlight, excessive heat, freezing, low humidity, inadequate
ventilation, and animal or human harm. Remove tree trunk sleeves prior to inspection, acceptance, and
planting. The Engineer will consider plants with damage that occurred or was discovered during
temporary storage, unacceptable. Do not store plants from one planting season to the next.
E.1 Pruning — Top Growth and Roots
Immediately before planting, prune the roots of bare-root plants, except seedlings, and
the top growth of deciduous plants. Cut-back broken or badly bruised roots and dry root tips to
sound, healthy tissue. Prune to remove dead, rubbing, damaged, diseased, and suckering
branches, and to improve plant symmetry, structure, and vigor. Prune coniferous trees and
shrubs only to remove damaged growth or a competing leader.
Prune in accordance with the horticultural practices specified in the current edition of
the ICAMMLP and the Standard Plans on the Plans.
Do not prune oak trees during the oak wilt season from April through July, to prevent
the spread of oak wilt disease. Immediately treat accidental cuts or wounds to oaks with a
wound dressing in accordance with the Standard Plans shown on the Plans. Keep wound-dressing
Material on the project during the oak wilt season.
E.2 Buried Root Flares
The Engineer will consider container-grown and balled and burlapped plant stock
unacceptable if provided with more than 4 inches of soil depth above the root flare. The Engineer
may accept plants provided with no more than 4 inches of excess soil above the root flare if the
excess soil can be removed without damaging the root system of the plants.
E.3 Excessive Roots
Reject containerized or balled and burlapped plants with roots extending at least
4 inches beyond the container or burlap.
F Installation of Plants
F.1 General
Before proceeding with plant installation Work, schedule and perform a competency
test demonstrating acceptable plant installation methods to the Engineer’s satisfaction and in
accordance with the Plans and Standard Plans, for each plant Pay Item and root category on the
2571
Minnesota 2020 Standard Specifications 739
Project. The Engineer considers a satisfactory competency test to be one that demonstrates
acceptable handling of plants, digging of holes and beds, installation of plants, initial watering,
installation of protection Materials and mulching.
Before digging planting holes, rake temporary erosion control wood chip mulch off
prepared planting areas to prevent wood chip contamination of the planting soil in the holes.
The Contractor may respread wood chip mulch formerly used as temporary erosion
control around plants to a depth no greater than 1 inch following plant installation, if newly
provided and acceptable Type 6 mulch is applied over the top to the depth shown on the
Standard Plans in the Plans.
Dig planting holes to the configuration and minimum dimensions shown in the Standard
Plans on the Plans. If the soil moisture is greater than field capacity, do not Work in planting
holes and beds.
Ensure drainage in the planting hole and bed areas . For a suspected drainage problem,
perform a percolation test by filling a 16 inches deep planting hole with water and measuring the
time it takes the water to drain from the hole. The Engineer considers adequate drainage equal
to or greater than a percolation rate of 1/2 inch per hour. If drainage does not meet these
requirements, request approval from the Engineer to relocate or delete affected planting
locations or proceed with Extra Work using one or a combination of the Standard Plans for poorly
drained soils as shown on the Plans.
G Watering
Provide watering Equipment and forces on the Project capable of completely watering plants as
often as necessary to maintain soil moisture in the root zones.
Within 2 hours of installation, saturate the backfill soil of each plant with water. After settling,
provide additional backfill to fill in the voids.
H Mulch
Before placing mulch, fine grade and level the planting bed soils with hand tools. Place mulch
Material in accordance with the Plans and Standard Plans no more than 7 Calendar Days after plant
installation. Mulch contaminated with soil during installation or otherwise not complying with the
requirements of 3882, “Mulch Material,” is unacceptable. Remove unacceptable mulch from the Project.
I Protection of Installed Trees
Use protective Materials to ensure the healthy growth and survival of installed trees. Tree
protection measures to address fall/winter environmental conditions must be removed the following
spring.
I.1 Staking and Guying
Unless staking and guying is shown on the Plans, only stake and guy trees if necessary to
maintain the trees in a plumb condition. The following circumstances may warrant staking and
guying:
(1) Excessive soil moisture
(2) Light-textured soil
(3) Steep slopes
(4) Exposure to excessive wind
(5) The likelihood of vandalism
Install staking and guying in accordance with the Standard Plans shown on the Plans.
2571
740 Minnesota 2020 Standard Specifications
Remove staking and guying within 1 year of initial installation.
I.2 Rodent Protection
Place rodent protection around deciduous, pine, and larch trees in accordance with the
Standard Plans shown on the Plans.
I.3 Seedling Tree Shelters
Install seedling tree shelters in accordance with the Standard Plans shown on the Plans.
J Cleanup and Restoration Work
Perform the following cleanup and restoration Work on an ongoing basis and as the final step of
the initial planting operations:
(1) Remove excess Materials, rocks, and debris from the Project
(2) Repair turf in disturbed areas with seed mixes as shown on the Plans or to
match in-place turf
(a) Immediately before sowing seed or laying sod, prepare soil as
specified in 2574.3, “Construction Requirements”
(b) Uniformly broadcast a Type 4 natural base fertilizer, as specified by
3881.2B.4, “Type 4 - Natural Based Fertilizer,” that provides nitrogen
at an application rate of 43 lb/acre
(c) Lay sod, or uniformly broadcast seed at 1.5 times the rate specified in
Table 3876.2-1. Provide seed in accordance with the requirements of
3876, “Seed” and perform seeding in accordance with Table 2575.3-1
(d) Rake and firm seeded areas to ensure seed contact with the soil
(e) Broadcast or disc anchor Type 1 mulch in all seeded areas
(3) Install erosion control measures to prevent erosion
K Plant Establishment Period
K.1 Establishment Period
A Plant Establishment Period (PEP) of at least 2 calendar years begins on the date that
initial planting operations on the Project are completed and continues until final acceptance of
the Project, unless otherwise shown on the Plans.
K.2 Establishment Work
Keep plants in a healthy growing condition in accordance with the current edition of the
ICAMMLP throughout the establishment period and submit landscape Contractor scouting
reports in accordance with item 1 of 2571.3K.2.a, “All Plants.” Perform plant establishment Work
throughout the growing seasons from April through October and as necessary during the
dormant seasons from November through March. The Engineer may perform random
inspections throughout the PEP to verify compliance. The Engineer will consider the Contractor
non-compliant if the Contractor does not maintain plants throughout the PEP and does not
submit scouting reports.
All Plants
In plant establishment Work, perform the following:
(1) Scout to assess the condition of the plants and the planting site and
factors that may influence plant health, vigor, and establishment
success. Scout these conditions at least every two weeks during the
growing season and at least every month during the dormant season
2571
Minnesota 2020 Standard Specifications 741
(2) Submit a written scouting report to the Engineer via e-mail by the 1st
and 15th of each month during the growing season from April to
October and by the 1st of each month during the dormant season
from November to March. The Engineer will use the report-frequency
and content to assess plant establishment compliance. The report may
include scanned copies of the Plan sheets with the Contractor notes,
copies of the report form found in the current edition of the
ICAMMLP, or both. Include the following in the report:
(a) The Project number
(b) Engineer’s name
(c) Name of Contractor’s responsible scout or representative
(d) Dates Work was performed
(e) Work locations
(f) Work completed
(g) Prevailing weather conditions
(h) Soil moisture assessments
(i) Insect, animal, vehicular, weather, or other damage
(j) Disease problems
(k) Treatment recommendations
(l) Assessment of overall plant conditions including weed
competition and control
(3) Maintain soil moisture in accordance with the watering guidelines of
the Standard Plans shown on the Plans
(4) Repair, adjust, or replace staking and guying, planting soil, rodent
protection, seedling tree shelters, and other items in accordance with
the Plans
(5) Maintain healthy, vigorous plants; free of harmful insects, fungus, and
disease without the use of systemic insecticides such as
neonicotinoids
(6) Remove dead, dying, and unsightly plants. Provide and install
replacement plants in accordance with 2571.3K.2.b, “Replacement
Requirements”
(7) Maintain plants in a plumb condition at the planting depth shown on
the Standard Plans in the Plans
(8) Maintain planting areas in a weed-free condition as follows:
(a) Remove weeds, top growth, and roots within the mulch limits
by hand pulling. Pre-water mulched areas to ensure weed top
growth and roots are entirely removed. Ensure weeding
operations do not contaminate the mulch or Project with
weed seed, weed-laden soil, or propagating weed parts.
Remove State and County regulated noxious weeds to at least
5 feet beyond the mulch limits. Remove weed parts or
weed-laden Material from the Project to avoid the spread of
weed infestations
(b) Do not spray chemicals for weed control in mulched planting
areas during the PEP. The Contractor may apply a non-
selective, non-residual post-emergent herbicide containing
41 percent glyphosate, as the active ingredient with a
surfactant on a spot treatment basis with a brush or wick
applicator. The Contractor may also apply a broad-spectrum
SECTION 2571.2 K.2.A (2) NOT USED
2571
742 Minnesota 2020 Standard Specifications
dichlobenil based granular, pre-emergent herbicide in
accordance with product labeling and manufacturer’s
recommendations
(c) Do not weed whip or weed clip as weed control
(d) Mow turf bands around the mulch limits at least 5 feet
beyond the limits and at least 4 inches high if the turf height
exceeds 9 inches adjacent to mulched planting areas
(e) Mow turf areas installed as part of the Project when the
growth exceeds 18 inches high. Mow turf from 6 inches to
12 inches high. Control State and County-listed noxious
weeds
(9) Prune to remove dead, rubbing, damaged, or diseased branches,
unwanted suckers, and to improve plant form and structure
(10) Prevent or repair rutting and other damage that may lead to soil
erosion and weed infestation
(11) Perform plant establishment operations consistent with plant care and
horticultural practices detailed in the current edition of the ICAMMLP
(12) Remove excess Material, obsolete temporary erosion control devices,
rocks, and debris from the Project
Replacement Requirements
Within the first year of the 2-year PEP, determine which plants need replacing.
Replace dead, defective, or missing plants and Materials in accordance with initial
installation requirements, including plants lost due to accidents, vandalism, theft,
rodent damage, damage caused by the Contractor, or if ordered by the Engineer, at no
additional cost to the Department. Conduct plant replacement operations during the
month of May or September, based on the start of the PEP. At least 7 Calendar Days
before plant replacement, submit a summary report of proposed plant replacements to
the Engineer. Include by attachment, copies of Plan sheets with the proposed
replacement quantities and locations identified and a Department Certificate of
Compliance for Plant Stock, Landscape Material, and Equipment, in the report . Using
brightly colored paint, mark on site plants requiring replacement.
Provide replacement plants and Materials that are equal to or better than the
initial Material required by the Contract.
If less than a full year remains in the PEP, do not replace plants unless the PEP
is extended by a Change Order to provide at least one full year of establishment care.
L Acceptance of Work
L.1 Acceptance of Preconstruction Work
The Engineer will accept the preconstruction Work after the Contractor secures
commitments for required Materials, submits a Department Certificate of Compliance for Plant
Stock, Landscape Materials, and Equipment, participates in a preconstruction meeting, obtains
the Engineer’s approval for the Progress schedule, moves Equipment and supplies to the Project,
and provides protection for existing plants.
L.2 Acceptance of Preparation of Planting Holes and Beds
For the Engineer’s acceptance of preparation of plan ting holes and beds, complete a
competency test, other specified staking, initial weed control, soil cultivation including
incorporation of additives, and temporary erosion control Work.
2571
Minnesota 2020 Standard Specifications 743
L.3 Acceptance of Initial Planting Operation
The Engineer will accept initial planting operations based on the following:
(1) Plant stock acceptance
(2) Completion of a competency test
(3) Installation of individual plants
(4) All Material and Work items shown in the initial planting operations chapter of
the current edition of the ICAMMLP, including but not limited to watering, tree
protection Materials, mulching, proper drainage, pruning, staking and guying,
fertilizing, erosion control, seeding, and clean up, in accordance with 1516.2,
“Project Acceptance.”
L.4 Final Acceptance
As a condition for terminating the PEP and conducting the final inspection, the Engineer
may require the Contractor to bring the plant establishment Work into compliance.
On or about the date of termination of the PEP, the Engineer will perform a final
inspection of the Project.
Upon final acceptance, the Engineer will not require further Contractor -care of
plantings.
The Engineer will make final acceptance at the completion of the two-year PEP and
based on a final inspection of the completed Project.
2571.4 METHOD OF MEASUREMENT
The Engineer will measure plants separately by the number of acceptable plants for each
Contract Item in accordance with 2571.5G, “Payment Schedule.”
2571.5 BASIS OF PAYMENT
The Department will make payment for plant installation and establishment at a percentage of
the Contract Unit Price per item unit of measure for all costs relating to furnishing, installing, and establishing,
the required plants and associated Materials as specified and shown on the Plans.
The Department may make full payment, reduced payment or no payment of no more than the
maximum eligible partial payment percentage at any payment phase (initial, interim, final) based on the
performance of the Contractor and in accordance with 1906, “Partial Payment,” and 1908, “Final Estimate and
Payment – Conditions and Process.”
A Initial Payment
The Department will make payment for plant installation and establishment at a percentage of
the Contract Unit Price for each plant for completion of the following Work:
A.1 Preconstruction Work
The Department will pay no more than 10 percent of the Contract Unit Price for each
plant with the completion and acceptance of preconstruction Work as defined in the
Preconstruction Work Checklist in the current edition of the ICAMMLP.
A.2 Preparation of Planting Holes and Beds
The Department will pay no more than 15 percent of the Contract Unit Price for each
plant with the completion and acceptance of preparation of planting holes and beds Work as
defined in the Preparation of Planting Holes and Beds Checklist in the current edition of the
ICAMMLP.
SECTION 2571.4 THROUGH 2571.5 NOT USED
2571
744 Minnesota 2020 Standard Specifications
A.3 Initial Planting Operations
The Department will pay no more than 45 percent of the Contract Unit Price for each
plant with the completion and acceptance of initial planting operations Work as defined in the
Initial Planting Operations Checklist in the current edition of the ICAMMLP.
B Interim Payment
At the end of the first calendar year of the PEP, and after completion and acceptance of the
Contractor’s Work and continuous compliance with the plant establishment requirements as defined by
the Plant Establishment-Year One Checklist in the current edition of the ICAMMLP, the Engineer may
authorize no more than 15 percent of the Contract Unit Price for each plant.
C Final Payment
The Department will make final payment after final inspection and acceptance of the completed
Project at the end of the PEP. The Engineer may authorize no more than 15 percent of the Contract Unit
Price for each plant as defined by the Plant Establishment Year 2 Checklist in the current edition at the
time of letting of the ICAMMLP. The total final payment includes the Plant Establishment Ye ar 2 payment,
assessments and reduced payments, if any, and Incentive payment, if eligible.
The Department will not pay for replacement plants, unless authorized by the Engineer.
The Department may continue to withhold any percentage of initial and interim payments from
the final payment.
The Department will require a prompt refund of any overpayment, if the final voucher shows
that the total of initial and interim payments made exceeds the total amount due the Contractor.
D Incentive Payment
When 90 percent or more of all plants installed within the initial plant installation period (PIP)
and related Contract operations have been continuously acceptable throughout the Contract period, the
Department will make an Incentive payment of 10 percent of the total final Contract Unit Price for plant
installation and establishment.
The Department considers replacement plants, replaced during the initial PIP, to be initially
installed plants. Replacement plants made during the PEP are not eligible for Incentives.
E Withholdings
E.1 Plant Stock and Materials Documentation
If the Contractor does not provide the documentation required by 2571.2A.2, “Plant
Stock and Materials Documentation,” the Department may withhold a percentage of the PIP
payment as described in checklist B2, in accordance with the current edition of ICAMMLP.
E.2 Plant Establishment Period
The Department may withhold a percentage of the PEP payment as described on
checklist B9-B10, in accordance with the current edition of ICAMMLP.
F Monetary Adjustments
The Department must apply Incentives and Disincentives and may apply monetary deductions for
Plant Installation and Establishment. The amounts of these adjustments are deemed reasonable.
The Department may make full payment or apply a monetary deduction of no more than the
maximum eligible partial payment percentage at any payment phase (initial, interim, final) based on the
performance of the Contractor (see Payment Checklist in the current edition of the ICAMMLP).
SECTION 2571.4 THROUGH 2571.5 NOT USED
2572
Minnesota 2020 Standard Specifications 745
The Engineer will determine which plants to accept for payment at the Contract Unit Price or at a
monetary deduction.
G Schedule
The Department will pay for plant installation and establishment on the basis of the following
schedule:
Item No. Item Unit
2571.502 Coniferous Tree Size & Root Category each
2571. 502 Deciduous Tree Size & Root Category each
2571. 502 Ornamental Tree Size & root Category each
2571. 502 Transplant Tree (Spade Size*) each
2571. 502 Coniferous Shrub Size & Root Category each
2571. 502 Deciduous Shrub Size & Root Category each
2571. 502 Transplant Shrub each
2571. 502 Transplant Vine each
2571. 502 Vine Age or Size & Root Category each
2571. 502 Perennial Age or Size & Root Category each
2571. 502 Transplant Perennial each
NOTE: State Root Category: Seedling, Bare Root, Machine Moved, Container Grown,
Balled and Burlapped
* Spade size: 42 inch, 60 inch, 78 inch, 85 inch, 90 inch.
2572 PROTECTION AND RESTORATION OF VEGETATION
2572.1 DESCRIPTION
This Work consists of protecting and preserving vegetation from damage and restoring
vegetation damaged by the Contractor’s operations.
2572.2 MATERIALS
A Plant Materials ...................................................................................................... 2571 and 2575
B Temporary Fence
Provide temporary fence meeting the following characteristics and requirements:
(1) At least 4 feet
(2) Conspicuous in color (see Standard Detail Sheet for Protection and Restoration of
Vegetation)
(3) Commercially available snow fence or other fencing Material approved by the Engineer
C Water
Provide municipal potable water or harvested ground water for irrigation.
D Rooting Topsoil Borrow ........................................................................................................ 3877
E Tree Growth Retardant (TGR)
Provide the TGR paclobutrazol or an equal approved by the Engineer.
SECTION 2571.4 THROUGH 2571.5 NOT USED
2572
746 Minnesota 2020 Standard Specifications
2572.3 CONSTRUCTION REQUIREMENTS
A Protecting and Preserving
Protect and preserve the following:
(1) Specimen Trees
(2) Threatened and endangered plants listed on the Federal and State threatened and
endangered species list
(3) Vegetation as required by the Contract
(4) Trees, Brush, and natural scenic elements within the Right-of-way and outside the limits
of clearing and grubbing in accordance with 2101.3, “Clearing and Grubbing,
Construction Requirements”
(5) Other vegetation as directed by the Engineer
Do not place temporary Structures, store Material, or conduct unnecessary construction
activities within 25.25 feet outside of the dripline of trees designated for preservation, unless otherwise
approved by the Engineer.
Do not place temporary Structures or store Material, including common borrow and topsoil,
outside of the construction limits in areas designated for preservation, as required by the Contract or as
approved by the Engineer.
Do not place or leave waste Material on the Project, including bituminous and concrete waste
that would interfere with performing the requirements of 2106.3D, “Preparation of Embankment
Foundation,” or 2575, “Establishing Vegetation and Controlling Erosion.” The Department defines
concrete waste as excess Material not used on the Project, including Material created from grinding
rumble strips. Dispose of excess Material in accordance with 2104.3D, “Disposal of Materials and Debris.”
A.1 Temporary Fence
Place temporary fences to protect vegetation before starting construction. Place
temporary fence at the construction limits and at other locations adjacent to vegetation
designated for preservation as required by the Contract or as approved by the Engineer. The
Department will provide tree protection signs. Place tree protection signs in accordance with any
of the following:
(1) Along the temporary fence at 50 foot intervals
(2) At least 2 signs per fence
(3) As directed by the Engineer
Do not remove the fence until all Work is completed or until approved by the Engineer.
Ensure the fence prevents traffic movement and the placement of temporary facilities,
Equipment, stockpiles, and supplies from harming the vegetation.
A.2 Clean Root Cutting
Cleanly cut tree roots at the construction limits as required by the Contract or as
directed by the Engineer.
Immediately and cleanly cut damaged and exposed roots. Cut back damaged roots of
trees designated for protection to sound healthy tissue and immediately place topsoil over the
exposed roots. Immediately cover root ends exposed by excavation activities with 6 inches of
topsoil as measured outward from the cut root ends . Immediately (within 5 minutes) treat cut
oak roots with a wound dressing Material consisting of latex paint or shellac. Limit cutting to a
minimum depth necessary for construction. Use a vibratory plow, or other approved root cutter
2572
Minnesota 2020 Standard Specifications 747
in accordance with the Standard Detail Sheet for Protection and Restoration of Vegetation,
before excavation.
A.3 Watering
Water root-damaged trees during the growing season that root damage occurs, and
water Specified Trees if required by the Contract or directed by the Engineer. Maintain adequate
but not excessive soil moisture by saturating the soil within the undisturbed portion of the
dripline of impacted or identified trees to a depth of 20 inches. Use a soil recovery probe to
check the soil moisture to a depth of 20 inches, and adjust the intervals and frequency of
watering in accordance with prevailing moisture and weather conditions.
A.4 Rooting Topsoil Borrow
Place rooting topsoil borrow instead of common topsoil borrow within the dripline of
Specimen Trees as required by the Contract or as directed by the Engineer.
Place the topsoil to avoid over-compaction as approved by the Engineer. Establish turf
consistent with the adjacent areas as approved by the Engineer.
A.5 Utility Construction
Bore under roots of trees designated for preservation for utility installations within the
tree protection zone in accordance with the following:
Table 2572.3-1
Tree Protection Zone
Tree diameter at
4.5 feet above
ground, inch
Minimum distance
from face of tree trunk,
feet
Minimum depth of
tunnel, feet
<2 2 3
2–4 4 3
>4–9 6 3
>9–14 10 3
>14–19 12 3.25
>19 15 4
Do not perform open trenching within the tree protection zone.
Bore under areas of native prairie and protected plant species as required by the
Contract or as directed by the Engineer.
A.6 Pruning
Provide an arborist certified by the International Society of Arboriculture to prune trees
as required by the Contract or as directed by the Engineer in accordance with 2571.3E.1,
“Pruning – Top Growth and Roots.” Ensure the arborist removes dead, broken, rubbing branches,
and limbs that may interfere with the existing and proposed Structures.
A.7 Destroyed or Disfigured Vegetation
Restore vegetation designated on the Plans for preservation that is damaged or
disfigured by the Contractor’s operations at no additional cost to the Department . Restore the
damaged vegetation to a condition equal to what existed before the damage . The Engineer may
assess damages against the Contractor for damage to vegetation not restored to the previous
condition. The Engineer will assess the value of damages to trees and landscaping at not less
than the appraisal damages as specified in the Council of Tree and Landscape Appraisers Guide
for Plant Appraisal. The Engineer will determine and assess damages of other vegetation.
2572
748 Minnesota 2020 Standard Specifications
A.8 Oak Trees
Avoid wounding of oak trees during April, May, June, and July to prevent the spread of
oak wilt. If the Engineer determines that Work must take place near oak trees during those
months, immediately (within 5 minutes) treat resulting wounds with a wound dressing Material
consisting of latex paint or shellac. Blend paint colors with the bark color. Maintain a supply of
approved wound dressing on the Project at all times during this period.
A.9 Tree Growth Retardant (TGR)
Provide an arborist certified by the International Society of Arboriculture to treat trees
with the TGR as required by the Contract or as directed by the Engineer. Ensure the arborist
applies the TGR paclobutrazol as a basal drench or soil injection and in accordance with the label
directions. Provide the Engineer with the product label and Material Safety Data Sheet for the
product used.
A.10 Other Vegetation Protection Measures
Provide other vegetation protection measures including root system bridging,
compaction reduction, aeration, irrigation systems, J -barriers for Specimen Tree protection, and
retaining walls as required by the Contract or as directed by the Engineer.
B Quarantined Wood ....................................................................................................... 2101.3D.4
C Plant Installation .................................................................................................................. 2571
D Disposal of Material and Debris ....................................................................................... 2104.3D
2572.4 METHOD OF MEASUREMENT
A Temporary Fence
The Engineer will measure temporary fence placed, maintained, and removed by length along
the bottom of the fence between end posts.
B Clean Root Cutting
The Engineer will measure clean root cutting by length along the plow line. The Engineer will
determine the beginning and ending points for clean root cutting as the intersection of the construction
limit and the dripline of the tree or Brush or in accordance with lines shown on the Plans.
C Water
The Engineer will measure water by volume used to protect and restore vegetation. The Engineer
will not measure water otherwise used in performing the Work, such as for maintenance of sod.
D Rooting Topsoil Borrow
The Engineer will measure rooting topsoil borrow by loose volume as required by the Contract.
E Pruning
The Engineer will measure pruning by the hours of actual pruning Work.
F Tree Growth Retardant (TGR)
The Engineer will measure TGR by volume of Material applied for the size of the tree treated. The
Engineer will determine the volume of TGR required by the diameter at breast height (DBH) of each tree
treated. DBH is defined as 4.5 feet above ground level. The Engineer will use a diameter tape measure to
measure DBH.
SECTION 2572.4 NOT USED