HomeMy WebLinkAbout05-26-2021 Additional #2 - G3(2) - ApproveFeasibilityReport_AttB_21_0526Feasibility Report
2021 Alleyway Improvement Project
Project FH-21-03
Iowa/Idaho Alleyway (Pascal St. to Arona St.)
Prepared by: Jesse Freihammer
City Engineer
City of Falcon Heights
I hereby certify that this feasibility report was prepared by me or under my
direct supervision and that I am a duly Licensed Professional Engineer under
the laws of the State of Minnesota.
______________________________________________, P.E.License No. 47272
INTRODUCTION
This feasibility report outlines the proposed 2021 Alleyway Improvement Project.
This report consists of a detailed investigation of the alleyway proposed for improvements, shown in the
map below.
The proposed project involves storm water utility work, small adjustments to the road elevation of the
eastern portion of the alleyway, and milling and overlaying the pavement on the entire length of the
alleyway. This project is proposed to address the drainage issue on the eastern end of the alleyway and
also to improve the pavement condition over the entire length of pavement.
Utility improvements for the project include the lowering the existing catch basin in the alleyway as well
as installing a new catch basin where the alleyway intersects Pascal Street. This will assist with draining
the storm water from the alleyway during rain events.
The total project cost for Falcon Heights is estimated to be $43,000, which includes engineering,
contingencies and overhead costs. Additionally, a storm water improvement at the alleyway’s intersection
with Pascal Street is estimated at $27,000. Funding for the project will be provided through assessments
from the benefitting properties and stormwater utility funds.
It is expected that if these improvements are approved, the work will be completed during the 2021
construction season. This project was initiated by Council after receiving a petition from the adjacent
properties requesting improvements to the alleyway. The petition cited issues in the past with drainage
on the eastern portion of the alleyway.
EXISTING CONDITIONS
The Iowa/Idaho alleyway is approximately 17’ wide. The pavement has significant delamination that has
created shallow potholes in the alleyway. This alleyway is the primary access to the garage for the adjacent
single-family homes on Iowa Avenue and Idaho Avenue. The right-of-way of the alleyway is 20’ wide.
Several garages, retaining walls and landscaping are within 1’-3’ of the edge of the alleyway.
The alleyway has a reverse crown, which channels storm water to the center of the alleyway rather than
shedding to the sides like on a street. There are existing catch basins in the alleyway. Residents submitted
photos to City staff showing storm water pooling at the east end of the alleyway and at the intersection
of the alleyway and Pascal Street.
This block of Pascal Street has a storm water infiltration trench at Idaho Avenue. The catch basins at the
intersection connect to the infiltration trench under Pascal Street, which allows the storm water from the
street to percolate into the soil beneath the roadway.
PROPOSED CONSTRUCTION
The main scope of the project is to address the drainage issues in the eastern portion of the alleyway.
The design proposed to mitigate this issue would include minor adjustment to the alleyway profile and
lowering the elevation of the existing catch basin. This would allow the existing catch basin to collect
more of the alleyway drainage. However, some of the drainage would be directed to Pascal Street. A mill
and overlay, to remove and replace the top layer of pavement is proposed over the length of the
alleyway to tie-in the adjusted roadway profile and address the deteriorated pavement areas.
The area where the alleyway intersects Pascal Street is fairly flat and reported holds water during the
spring. This can create icing issues for residents using the alley entrance and on Pascal Street. An option
to address this issue would be to install a new catch basin at the intersection of the alleyway and Pascal
Street. Perforated pipe would be proposed to connect the new catch basin to the existing infiltration
storm trench at Pascal Street and Idaho Avenue. Additional analysis in final design will evaluate the
infiltration capacity. As this option includes work that is significantly different from the scope of the rest
of the alleyway project and the 2021 pavement management project currently underway in the City,
staff recommends construction as a separate project in 2022.
ESTIMATED COSTS AND PROPOSED FUNDING
Proposed project costs for the 2021 Alleyway Improvement Project are summarized below. The cost
estimate is based on recent construction projects of similar character and assumes construction in 2022.
Estimated
Cost*
Street
Infrastructure
Funds
Assessments Storm Sewer
Fund
Alleyway
Improvements**$43,000 $4,300 $38,700
Optional Pascal
St. Storm Water
Improvements***
$27,000 $27,000
Total $70,000 $4,300 $38,700 $27,000
*Includes 13.5% Engineering
**Includes 10% Contingency
***Includes 30% Contingency
The proposed project is eligible for assessments according to the City of Falcon Heights Assessment Policy.
Per City Policy, a portion of the street improvements will be assessed to the benefitting properties. Along
with assessments, alleyway costs will be financed through the Street Infrastructure Fund.
Utility improvements on Pascal Street would be funded from the storm water utility fund, and are not
assessable.
Assessments will be levied to the benefitting properties as outlined in Minnesota State Statute Chapter
429 and the City’s Assessment Policy, which is summarized below. The assessed amount is levied on a
front footage basis.
Assuming this project is completed by fall 2022, the final assessment amount would be determined
following an assessment hearing in the fall of 2022 and a thorough review of the proposed assessments
by the Council.
The following City of Falcon Heights assessment policies are being followed:
Alleyway Assessment Rates:
o Adjacent Properties – 90% of the cost
o City – 10% of the cost
Below list the breakdown of costs for the estimated frontage, per foot rates:
$38,700 / 1208’ = $32.03/foot
PROPOSED PROJECT SCHEDULE
Feasibility Report, Order Plans & Specs May 26, 2021
Public Hearing June 9, 2021
Approve Plans & Specs Fall 2021
Bidding Winter 2021/22
Construction Summer 2022
Final Assessment Hearing October 2022
PRELIMINARY ASSEMENT ROLL
Parcel ID Parcel Address
Frontage
(FT)
Footage
Used
(FT)
Assessment
Rate ($/FT)
Proposed
Assessment
Total ($)
222923220084 1463 IOWA AVE W 50 50 $ 32.03 $ 1,601.50
222923220083 1467 IOWA AVE W 50 50 $ 32.03 $ 1,601.50
222923220082 1471 IOWA AVE W 50 50 $ 32.03 $ 1,601.50
222923220081 1477 IOWA AVE W 50 50 $ 32.03 $ 1,601.50
222923220080 1481 IOWA AVE W 50 50 $ 32.03 $ 1,601.50
222923220079 1485 IOWA AVE W 50 50 $ 32.03 $ 1,601.50
222923220078 1489 IOWA AVE W 50 50 $ 32.03 $ 1,601.50
222923220077 1493 IOWA AVE W 50 50 $ 32.03 $ 1,601.50
222923220076 1497 IOWA AVE W 50 50 $ 32.03 $ 1,601.50
222923220075 1503 IOWA AVE W 50 50 $ 32.03 $ 1,601.50
222923220074 1507 IOWA AVE W 50 50 $ 32.03 $ 1,601.50
222923220073 1513 IOWA AVE W 50 50 $ 32.03 $ 1,601.50
222923220072 1512 IDAHO AVE W 65 65 $ 32.03 $ 2,081.95
222923220071 1508 IDAHO AVE W 55 55 $ 32.03 $ 1,761.65
222923220070 1502 IDAHO AVE W 60 60 $ 32.03 $ 1,921.80
222923220069 1494 IDAHO AVE W 50 50 $ 32.03 $ 1,601.50
222923220068 1490 IDAHO AVE W 50 50 $ 32.03 $ 1,601.50
222923220067 1488 IDAHO AVE W 50 50 $ 32.03 $ 1,601.50
222923220066 1482 IDAHO AVE W 50 50 $ 32.03 $ 1,601.50
222923220065 1478 IDAHO AVE W 50 50 $ 32.03 $ 1,601.50
222923220064 1472 IDAHO AVE W 60 60 $ 32.03 $ 1,921.80
222923220063 1468 IDAHO AVE W 55 55 $ 32.03 $ 1,761.65
222923220062 1464 IDAHO AVE W 55 55 $ 32.03 $ 1,761.65
Appendix
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mapdoc: IdahoIowaAlleywayStormSewer.mxdmap: IdahoIowaAlleywayStormSewer.pdf
Data Sources and Contacts:* Ramsey County GIS Base Map (5/04/21)* City of Roseville Engineering DepartmentFor further information regarding the contents of this map contact:City of Roseville, Engineering Department,2660 Civic Center Drive, Roseville MNDISCLAIMER:This map is neither a legally recorded map nor a survey and is not intended to be used as one. This map is a compilation of records,information and data located in various city, county, state and federal offices and other sources regarding the area shown, and is tobe used for reference purposes only. The City does not warrant that the Geographic Information System (GIS) Data used to preparethis map are error free, and the City does not represent that the GIS Data can be used for navigational, tracking or any other purposerequiring exacting measurement of distance or direction or precision in the depiction of geographic features. If errors or discrepanciesare found please contact 651-792-7075. The preceding disclaimer is provided pursuant to Minnesota Statutes §466.03, Subd. 21 (2000),and the user of this map acknowledges that the City shall not be liable for any damages, and expressly waives all claims, and agrees todefend, indemnify, and hold harmless the City from any and all claims brought by User, its employees or agents, or third parties whicharise out of the user's access or use of data provided.
´0 15 30 45 60FeetPrepared by:City of Roseville Engineering DepartmentMay 20, 2021
Idaho and Iowa Alleyway-Existing Conditions
IDAHO AVE
IOWA AVE PASCAL STARONA AVE")Catch Basin
#*Flared End
!(Storm Manhole
Storm Pipe
2' Contours
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mapdoc: IdahoIowaAlleyway.mxdmap: IdahoIowaAlleyway.pdf
Data Sources and Contacts:* Ramsey County GIS Base Map (1/03/20)* City of Roseville Engineering DepartmentFor further information regarding the contents of this map contact:City of Roseville, Engineering Department,2660 Civic Center Drive, Roseville MNDISCLAIMER:This map is neither a legally recorded map nor a survey and is not intended to be used as one. This map is a compilation of records,information and data located in various city, county, state and federal offices and other sources regarding the area shown, and is tobe used for reference purposes only. The City does not warrant that the Geographic Information System (GIS) Data used to preparethis map are error free, and the City does not represent that the GIS Data can be used for navigational, tracking or any other purposerequiring exacting measurement of distance or direction or precision in the depiction of geographic features. If errors or discrepanciesare found please contact 651-792-7075. The preceding disclaimer is provided pursuant to Minnesota Statutes §466.03, Subd. 21 (2000),and the user of this map acknowledges that the City shall not be liable for any damages, and expressly waives all claims, and agrees todefend, indemnify, and hold harmless the City from any and all claims brought by User, its employees or agents, or third parties whicharise out of the user's access or use of data provided.
´0 15 30 45 60FeetPrepared by:City of Roseville Engineering DepartmentMay 7, 2021
Idaho and Iowa Alleyway
IDAHO AVE
IOWA AVE PASCAL STARONA AVE
15111525152514881512149714721485150215241473148014841469150514721479146814641508151214891513150314941490150414941471146714681482147814931481147714931488148514971498150714631489146314641508mapdoc: IdahoIowaAlleywayAssessment.mxdmap: IdahoIowaAlleywayAssessment.pdf
Data Sources and Contacts:* Ramsey County GIS Base Map (5/04/21)* City of Roseville Engineering DepartmentFor further information regarding the contents of this map contact:City of Roseville, Engineering Department,2660 Civic Center Drive, Roseville MNDISCLAIMER:This map is neither a legally recorded map nor a survey and is not intended to be used as one. This map is a compilation of records,information and data located in various city, county, state and federal offices and other sources regarding the area shown, and is tobe used for reference purposes only. The City does not warrant that the Geographic Information System (GIS) Data used to preparethis map are error free, and the City does not represent that the GIS Data can be used for navigational, tracking or any other purposerequiring exacting measurement of distance or direction or precision in the depiction of geographic features. If errors or discrepanciesare found please contact 651-792-7075. The preceding disclaimer is provided pursuant to Minnesota Statutes §466.03, Subd. 21 (2000),and the user of this map acknowledges that the City shall not be liable for any damages, and expressly waives all claims, and agrees todefend, indemnify, and hold harmless the City from any and all claims brought by User, its employees or agents, or third parties whicharise out of the user's access or use of data provided.
´0 15 30 45 60FeetPrepared by:City of Roseville Engineering DepartmentMay 20, 2021
Idaho and Iowa Alleyway Assessed Parcels
IDAHO AVE
IOWA AVE PASCAL STARONA AVEProposed Assessments