Wilbricht Lane Detention Basin Project_InitiateCopyrighted
March 21, 2022
City of Dubuque Items to be set for Public Hearing # 2.
City Council Meeting
ITEM TITLE: Wilbricht Lane Detention Basin Project
SUMMARY: City Manager recommending City Council adoption of resolutions
preliminarily approving the proposed plans, specifications, form of
contract, and construction estimate; establishing the date of the public
hearing to April 4, 2022; and authorizing the City Engineer to advertise for
bids for the Wilbricht Lane Detention Basin Project.
RESOLUTION Wilbricht Lane Detention Basin Project: preliminary
approval of plans, specifications, form of contract, and estimated cost;
setting date of public hearing on plans, specifications, form of contract,
and estimated cost; and ordering the advertisement for bids
SUGGESTED Receive and File; Adopt Resolution(s), Set Public Hearing for April 4,
DISPOSITION: 2022Suggested Disposition:
ATTACHMENTS:
Description Type
Wilbricht Lane Detention Basin Project-MVM Memo City Manager Memo
Staff Memo
Resolution
Staff Memo
Resolutions
Notice of Hearing Supporting Documentation
THE C
DUj!BQTE
Masterpiece on the Mississippi
TO: The Honorable Mayor and City Council Members
FROM: Michael C. Van Milligen, City Manager
SUBJECT: Wilbricht Lane Detention Basin Project
DATE: March 14, 2022
Dubuque
WAWca 914
ii
2007-2012.2013
2017*2019
City Engineer Gus Psihoyos is recommending City Council adoption of resolutions
preliminarily approving the proposed plans, specifications, form of contract, and
construction estimate; establishing the date of the public hearing to April 4, 2022; and
authorizing the City Engineer to advertise for bids for the Wilbricht Lane Detention Basin
Project.
I concur with the recommendation and respectfully request Mayor and City Council
approval.
v
Mic ael C. Van Milligen
MCVM:sv
Attachment
cc: Crenna Brumwell, City Attorney
Cori Burbach, Assistant City Manager
Gus Psihoyos, City Engineer
THE C
DUUB---&-FEE
Masterpiece on the Mississippi
TO:
FROM:
SUBJECT:
DATE:
INTRODUCTION
Michael C. Van Milligen, City Manager
Gus Psihoyos, City Engineer
Wilbricht Lane Detention Basin Project
CIP#7202722
March 8, 2022
Dubuque
AA•Amerlu My
2007-2012.2013
2017*2019
The purpose of this memo is to seek authorization to initiate the public bidding process
for the Wilbricht Lane Detention Basin Project.
BACKGROUND
With the adoption of the FY18 CIP Budget,
Wilbricht Detention Basin Project.
the City Council established $50,000 for the
Through the budget amendment process, the City Council allocated additional funding
for the project establishing $457,993.00 for the project in FY22.
DISCUSSION
During even modest rains, the storm sewer system that drains Wilbricht Lane and the
area north to Asbury Road becomes surcharged such that stormwater comes out of the
storm sewer catch basin in the backyard of a residence on Glendale Court — flooding
the area. The surcharging is a consequence of the upstream storm sewer system
collecting more runoff than the downstream system can handle. The initial goal of the
project was to minimize the frequency that the sewer would surcharge, limit it to less
frequent rains. To accomplish that, a detention basin was proposed for an underutilized
green space within Flora Park east of Flora Park Drive and south of Wilbricht Lane. The
original scope involved minor storm sewer modifications and excavation to create the
temporary ponding area.
During the design phase, the system downstream of the proposed improvements was
also considered. Additional storm sewer capacity issues were identified within the
system, the storm sewer that drains Marmora Avenue and the main storm sewer that
runs behind the homes on McPoland Avenue. As a result, the scope of the project
changed to maximizing the size and utility of a detention basin at the proposed location
while minimizing any impacts to the public use of Flora Park.
The proposed improvements associated with the Wilbricht Lane Detention Basin
involves relocating 350 feet of Flora Park Drive, shifting the intersection with Wilbricht
Lane 160 feet to the west. In addition to providing space for ponding runoff, it will result
in a safer intersection. A flat 10-foot-wide area is proposed along the eastern edge of
the proposed roadway. From there, the ground will slope mildly to the floor/bottom of the
detention basin. To be seeded with a prairie/savanna seek mix, the detention basin by
design will have a dry bottom except during rains. A small roadside swale is planned on
the western side of the relocated drive to prevent runoff (or snow melt) from sheeting
across the pavement which can lead to slippery and sometimes hazardous conditions.
The project will result in the removal of ten trees. They will be replaced following the
project.
In terms of stormwater management, the proposed improvements will eliminate the
back yard catch basin that would surcharge — stormwater would exit the system versus
enter the system — for even the 2-year rain, surcharge every other year. The detention
basin will be able to pond stormwater so that the 50-year rain (approximately 6.5 inches
of rain in a 24-hour period) would be able to safely drain down the storm sewer.
The proposed Wilbricht Lane Detention Basin will address the localized flooding that
has occurred along Glendale Court. And while additional drainage improvements may
be in order, the proposed improvements will reduce the flow of runoff to downstream
facilities, alleviating the flooding issues at Marmora Avenue and behind the houses on
McPoland Avenue.
PROJECT SCHEDULE
The schedule for the project is as follows:
Publish Notice to Bidders, Advertise for Bids
Publish Public Hearing Notice on Plans & Specs
Public Hearing on Plans & Specifications
Receipt of Bids (Bid Letting)
Award Construction Contract
Final Project Completion Date
RECOMMENDATION
March 21, 2022
March 25, 2022
April 4, 2022
April 14, 2022
May 2, 2022
October 31, 2022
I recommend preliminary approval of the proposed plans, specifications, form of
contract, and construction estimate for the Wilbricht Lane Detention Basin Project
(Project). I further recommend establishing the date of a public hearing and authorize
the City Clerk to advertise for bids for the Project.
BUDGETIMPACT
The estimate of probable costs for the Project is as follows:
Description
Cost Estimate
Construction
$ 448,323.50
Contingency
$ 22,400.00
Engineering Design and Administration
$ 56,500.00
Total Construction Cost Estimate
$ 527,223.50
The funding summary is as follows:
CIP
Fund Description
Fund Amount
7202722
Wilbricht Lane Detention Basin Project
$ 457,993.00
7202238
Cedar Cross Rd Storm Sewer
Replacement
$ 69,230.50
Funding Source
Fund Amount
Stormwater Utility Construction Funds
$ 527,223.50
Funding to implement the improvements associated with the Cedar Cross Road Storm
Sewer Replacement Project (CIP#7202238) will come from General Storm Sewer
Repairs (CIP#7201066) in FY23 if funds allow or budgeted in a subsequent year as part
of the FY24-28 5-year CIP Budget.
ACTION TO BE TAKEN
I respectfully request adoption of the attached resolutions preliminarily approving the
proposed plans, specifications, form of contract, and construction estimate; establishing
the date of the public hearing; and authorizing the City Engineer to advertise for bids for
the Wilbricht Lane Detention Basin Project.
Attach.
Prepared by Deron Muehring
CC' Crenna Brumwell, City Attorney
Jenny Larson, Director of Finance & Budget
Marie Ware, Leisure Services Manager
Steve Fehsal, Park Division Manager
Deron Muehring, Civil Engineer
Prepared by Deron Muehring, City of Dubuaue Enaineering, 50 W. 13th St. Dubuque, IA 52001 (563)589-4270
Return to Adrienne N. Breitfelder City Clerk City of Dubuque, 50 W. 13th St. Dubuque, IA 52001 (563)589-4100
RESOLUTION NO. 91-22
WILBRICHT LANE DETENTION BASIN PROJECT
PRELIMINARY APPROVAL OF PLANS, SPECIFICATIONS, FORM OF CONTRACT,
AND ESTIMATED COST; SETTING DATE OF PUBLIC HEARING ON PLANS,
SPECIFICATIONS, FORM OF CONTRACT, AND ESTIMATED COST; AND
ORDERING THE ADVERTISEMENT FOR BIDS
NOW THEREFORE, BE IT RESOLVED BY THE CITY COUNCIL OF THE CITY OF
DUBUQUE, IOWA:
The proposed plans, specifications, form of contract and estimated cost for the
Wilbricht Lane Detention Basin Project in the estimated amount $448,323.50, are hereby
preliminarily approved and ordered filed in the office of the City Clerk for public inspection.
A public hearing will be held on the 4th day of April, 2022, at 6:30 p.m. in the Historic
Federal Building Council Chambers (and/or by virtual means) 350 W. 6th Street, Dubuque,
Iowa, at which time interested persons may appear and be heard for or against the
proposed plans and specifications, form of contract and estimated cost of said Project,
and the City Clerk be and is hereby directed to cause the attached notice of the time and
place of such hearing to be published in a newspaper having general circulation in the
City of Dubuque, Iowa, which notice shall be published not less than four days nor more
than twenty days prior to the date of such hearing. At the hearing, any interested person
may appear and file objections to the proposed plans, specifications, form of contract, or
estimated cost of the Project.
The Wilbricht Lane Detention Basin Project is hereby ordered to be advertised for
bids for construction.
The amount of the security to accompany each bid shall be in an amount which
shall conform to the provisions of the Notice to Bidders hereby approved.
The City Engineer is hereby directed to advertise for bids for the construction of
the improvements herein provided, by publishing the Notice to Bidders to be published
on the City of Dubuque website and a contractor plan room service with statewide
circulation, which notice shall be published not less than thirteen but not more than forty-
five days before the date for filing bids before 2:00 p.m. on the 14th day of April 2022.
Bids shall be opened and read by the City Clerk at said time and will be submitted to the
City Council for final action at 6:30 p.m. on the 2nd day of May 2022, in the Historic Federal
Building Council Chambers (and/or by virtual means) 350 West 6th Street, Dubuque, Iowa.
Passed, approved, and adopted this 215t day of March 2022.
Attest: ry�
Adrienne N. Breitfelder, City Clerk
NOTICE OF PUBLIC HEARING ON PLANS, SPECIFICATIONS, FORM OF
CONTRACT, AND ESTIMATED COST FOR THE WILBRICHT LANE DETENTION
BASIN PROJECT
NOTICE IS HEREBY GIVEN: The City Council of the City of Dubuque, Iowa will
hold a public hearing on the proposed plans, specifications, form of contract and
estimated cost for the Wilbricht Lane Detention Basin Project in accordance with the
provisions of Chapter 26, Code of Iowa, at 6:30 p.m., on the 41" day of April 2022, in the
Historic Federal Building Council Chambers (and/or by virtual means), 350 West 6t"
Street, Dubuque, Iowa. Said proposed plans, specifications, form of contract and
estimated cost are now on file in the office of the City Clerk. At said hearing any interested
person may appear and file objections thereto.
The scope of the Project is as follows:
The proposed improvements associated with the Wilbricht Lane Detention
Basin involves relocating 350 feet of Flora Park Drive, shifting the
intersection with Wilbricht Lane 160 feet to the west. In addition to providing
space for ponding runoff, it will result in a safer intersection. A flat 10-foot-
wide area is proposed along the eastern edge of the proposed roadway.
From there, the ground will slope mildly to the floor/bottom of the detention
basin. To be seeded with a prairie/savanna seek mix, the detention basin
by design will have a dry bottom except during rains. A small roadside swale
is planned on the western side of the relocated drive to prevent runoff (or
snow melt) from sheeting across the pavement which can lead to slippery
and sometimes hazardous conditions. The project will result in the removal
of ten trees. They will be replaced following the project.
Any visual or hearing -impaired persons needing special assistance or persons with
special accessibility needs should contact the City Clerk's office at (563) 589-4120 or
TDD at (563) 690-6678 at least 48 hours prior to the meeting.
Published by order of the City Council given on the 21st day of March 2022.
Adrienne N. Breitfelder, City Clerk