HomeMy WebLinkAbout05 - Eng review - 2019-04-18 Metro Transit Park Ride Plan Review PAGE 1 of 2
MEMORANDUM
Date: April 18, 2019
To: Ken Roberts, Planner Director Re: Metro Transit Park & Ride at I94 and CSAH‐15
Cc: Chad Isakson, Assistant City Engineer Engineering Plan Review
From: Jack Griffin, P.E., City Engineer
An engineering review has been completed for the Metro Transit Park & Ride Station Engineering Plans at I94 and
Manning Avenue (CSAH‐15) received on March 25, 2019. The submittal consisted of the following documentation:
I‐94 and Manning Avenue Park & Ride Station Plans, dated 03.29.2019, prepared by SRF.
Stormwater Management, dated November 2018, prepared by SRF. Not Certified.
STATUS/FINDINGS: Engineering has prepared the following review comments:
PRELIMINARY PLAT AND EASEMENTS
No lot easements have been provided as required.
A retaining wall and chain link fence are proposed along the length of the rear lot line. The retaining wall
and chain link fence encroach the required rear lot line easement. Temporary construction easements or
permits will be required from adjacent properties to construct the proposed retaining wall. Temporary
construction easements should be shown on the plans and provided to the City.
The plans show a future charging station encroaching the required side lot easement on the north side.
The plans should be revised to relocate the future charging station outside of the easement.
Drainage and utility easements must be added to the plans over all watermain and hydrants. Easements
must extend minimum 15‐feet from pipe and hydrants (see Utility Plan comments). Drainage and utility
easements must be provided in the City’s standard form of drainage and utility easement agreement.
STORMWATER MANAGEMENT
The site plan is subject to a storm water management plan meeting State, VBWD and City rules and
regulations. A storm water management plan has been submitted but has not yet been reviewed by the
VBWD. The stormwater management plan must be a prepared and certified by an engineer licensed in the
State of Minnesota. The plan must be resubmitted with professional certification. Any plan revisions
made to obtain the VBWD approval must be resubmitted to the City for review and approval.
The site plan shows storm water management being addressed using on‐site underground storage located
beneath the proposed parking spaces. The storm water facilities constructed for this development will
remain privately owned and maintained. The applicant will be required to execute and record a
Stormwater Maintenance and Easement Agreement in the City’s standard form of agreement.
The 100‐year high water flood level (HWL) and 100‐year HWL contour must be calculated and shown on
the grading plans, must be fully contained within private property, and must be protected by easement.
FOCUS ENGINEERING, inc.
Cara Geheren, P.E. 651.300.4261
Jack Griffin, P.E. 651.300.4264
Ryan Stempski, P.E. 651.300.4267
Chad Isakson, P.E. 651.300.4285
PAGE 2 of 2
PERMITS/APPROVALS
• A copy of the VBWD permit is required prior to start of construction.
• A copy of the MnDOT drainage permit is required prior to start of construction.
• A copy of the MPCA Stormwater Construction permit is required prior to start of construction.
• Any plan revisions made to obtain the above permits must be resubmitted for City review and approval.
An executed Stormwater Maintenance and Easement Agreement in the City’s standard form is required
prior to start of construction.
Retaining walls that exceed 4 feet in height must have a design submitted and certified by an engineer
licensed in the State of Minnesota.
Written landowner permission must be provided for any off‐site grading work, easements and storm
water discharges to adjacent properties.
No construction for this project may begin until the applicant has received City Engineer approval for the
Final Construction Plans; the applicant has obtained and submitted to the City all applicable permits,
easements and permissions needed for the project; a site improvement agreement has been executed
with the City and all required securities have been provided, and a preconstruction meeting has been held
by the City’s engineering department.
CONSTRUCTION PLANS
Construction Phasing. The plans should be updated to better identify the Hudson Boulevard
Improvements as “proposed construction by others” and to require coordination between contractors.
The plans and specifications should carefully address construction phasing, such as the timing for water
and sewer connection and testing, and driveway connections to Hudson Boulevard.
C3.0. Grading, Drainage and Erosion Control. Revise the erosion control plans to include the City of Lake
Elmo standard plan notes for erosion control and City standard details for erosion control. The
specifications must be updated to include the City of Lake Elmo standard specifications for erosion
control. The City specifications, details and plan notes must be identified to supersede all other plans and
specifications in case of conflict.
C3.0. Grading, Drainage and Erosion Control. Revise plans to identify Hudson Boulevard as “proposed”
and to be constructed “by others”. Add plan note that grading revisions may be required to match into
the final constructed grades for Hudson Boulevard.
C3.0. Grading, Drainage and Erosion Control. Add erosion control and restoration measures at the storm
sewer outfall pipe off‐site.
C4.0. Utility Plan. Revise the utility plans to show the sewer and water service connections to be located
at the right‐of‐way of Hudson Boulevard. The public improvement project must be updated to provide
sewer and water service stubs from the mains to the right‐of‐way consistent with City of Lake Elmo
standard service details.
C4.0. Revise the utilities shown in Hudson Boulevard from “existing” to “installed by others”.
C4.0. Utility Plan. Add hydrants interior to the site as required by the Lake Elmo Fire Department. See
attached plans showing required locations.
C4.0. Utility Plan. Revise plans to extend 8‐inch watermain interior to site to each hydrant and create a
looped main configuration. Update the plans to show a minimum 30‐foot utility easement centered over
all watermain and hydrants. Easement must extend minimum 15‐feet from all pipe and hydrants.
C4.0. Utility Plan. Revise the utility plans to include the City of Lake Elmo standard plan notes for
watermain and City standard details for watermain. The specifications must be updated to include the
City of Lake Elmo standard specifications for watermain. The City specifications, details and plan notes
must be identified to supersede all other plans and specifications in case of conflict.
C5‐X. Civil Details. The plans must be revised to replace all civil details, plan notes and specification for
erosion and sediment control to meet the standards of the City of Lake Elmo.
L1.0. Landscape Plans. All proposed utilities must be shown on the landscape plans and all trees relocated
to maintain 10 feet of separation from all public utilities.
LEGEND