Award Maus Park Lake Pump Station Culvert Repair Project Copyrighted
October 2, 2023
City of Dubuque Consent Items # 06.
City Council Meeting
ITEM TITLE: Award Maus Park Lake Pump Station Culvert Repair Project
SUM MARY: City Manager recommending City Council adopt the resolution awarding
the Public I mprovement Construction Contract for the Maus Park Lake
Pump Station Culvert Repair Project in the amount of$525,172.00 to
Tschiggfrie Excavating.
RESOLUTION Awarding the Public I mprovement Construction Contract
for the Maus Park Lake Pump Station Culvert Repair Project
SUGGESTED Suggested Disposition: Receive and File;Adopt Resolution(s)
DISPOSITION:
ATTACHMENTS:
Description Type
MVM Memo City Manager Memo
Staff Memo Staff Memo
Resolution Resolutions
Dubuque
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TO: The Honorable Mayor and City Council Members
FROM: Michael C. Van Milligen, City Manager
SUBJECT: Maus Park Lake Pump Station Culvert Repair Project
Award Public Improvement Construction Contract
Project Code: 5586500032
DATE: September 27, 2023
Assistant City Engineer Robert Schiesl is recommending City Council adopt the
attached resolution awarding the Public Improvement Construction Contract for the
Maus Park Lake Pump Station Culvert Repair Project in the amount of $525,172.00 to
Tschiggfrie Excavating.
The Maus Park Lake Pump Station Culvert Repair Project (Project) involves the lining of
the culvert that allows stormwater runoff to pass from the Maus Lake ponding area, under
a set of railroad mainline tracks, through the floodwall/levee system, into the Mississippi.
Repair of the culvert involves the trenchless installation of approximately 110 lineal feet
of a steel slip liner inside the existing culvert resulting in a new culvert under the railroad
tracks, partially through the levee. In addition to lining the existing culvert, the work
includes the construction of a permanent cofferdam and concrete apron, concrete walls,
and stop log level control system on the interior side of the floodwall/levee system which
will both facilitate the lining process and allow for maintenance of the culvert once
complete.
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
Robert Schiesl, Assistant City Engineer
Deron Muehring, Civil Engineer II
Dubuque
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TO: Michael C. Van Milligen, City Manager
FROM: Robert Schiesl, Assistant City Engineer
SUBJECT: Maus Park Lake Pump Station Culvert Repair Project
Award Public Improvement Construction Contract
Project Code: 5586500032
DATE: September 27, 2023
INTRODUCTION
The purpose of the memorandum is to recommend awarding the Public Improvement
Construction Contract for the Maus Park Lake Pump Station Culvert Repair Project.
BACKGROUND
Prior to the construction of the floodwall, a concrete arch culvert served to drain Maus
Lake beneath what are now Canadian National (CN) mainline railroad tracks to the
Mississippi River. When the floodwall was constructed, the existing arch culvert was
retrofitted with sections of 48-inch reinforced concrete pipe at the upstream and
downstream ends to extend the pipe. The flow line of the arch culvert was filled with
concrete and formed to the radius of a 48-inch pipe. A manually operated flood gate was
installed at the downstream end, and a pumping station was constructed at Maus Lake.
In May 2017, ballast subsidence under the railroad tracks was discovered at the location
of the culvert crossing. Further investigation revealed joint openings in the concrete arch
below the tracks. The joint openings were filled with epoxy and steel plates were installed
along the roof of the pipe as a temporary repair measure until a permanent solution could
be developed.
The Maus Park Lake Pump Station Culvert Repair Project (Project) involves the lining of
the culvert that allows stormwater runoff to pass from the Maus Lake ponding area, under
a set of railroad mainline tracks, through the floodwall/levee system, into the Mississippi.
Repair of the culvert involves the trenchless installation of approximately 110 lineal feet
of a steel slip liner inside the existing culvert resulting in a new culvert under the railroad
tracks, partially through the levee. In addition to lining the existing culvert, the work
includes the construction of a permanent cofferdam and concrete apron, concrete walls,
and stop log level control system on the interior side of the floodwall/levee system which
will both facilitate the lining process and allow for maintenance of the culvert once
complete.
DISCUSSION
Sealed bids for the Maus Park Lake Pump Station Culvert Repair Project were received
and publicly opened on September 26, 2023. Tschiggfrie Excavating of Dubuque, lowa
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submitted the low bid in the amount of$525,172.00, which is 10.38% below the estimate
of probable cost. A summary of the bid proposals received is as follows:
Bidder Bid Amount
Tschiggfrie Excavating $ 525,172.00
Engineering & Construction Innovations $ 669,995.00
Jim Schroeder Construction $ 686,000.00
Tricon General Construction $ 870,000.00
RECOMMENDATION
I recommend awarding the Public Improvement Construction Contract for the Maus Park
Lake Pump Station Culvert Repair Project in the amount of $525,172.00 to Tschiggfrie
Excavating.
BUDGET IMPACT
The estimate of probable cost for the Maus Park Lake Pump Station Culvert Repair
Project is as follows:
Description Estimate Award
Construction Contract $ 586,000.00 $ 525,172.00
Contingency 58,600.00 52,500.00
Engineering Design Services 67,300.00 67,300.00
Contract Admin / Construction Engineering 29,400.00 29,400.00
Total Project Cost $ 741,300.00 $ 674,372.00
The current project funding summary is as follows:
Project Funding Source Amount
Code
5586500032 Maus Park Culvert Restoration $ 463,940.00
5586500001 Storm Sewer Replacements 142,432.00 ��>
5586500020 Storm Sewer Improvements/Extensions 68,000.00 ��>
Total Project Funding $ 674,372.00
(1) Funding if needed pending the outcome of insurance claim
The Project is to be funded through a FY23 appropriation in the amount of $463,940 for
Maus Park Culvert Restoration (Project 5586500032). Because the pump station and
culvert were insured, the City submitted a claim (ICP047008A1) to the lowa Communities
Assurance Pool (ICAP) for making permanent repairs to the culvert that will offset the
City's cost. Pending the outcome of the claim, additional funds if needed will come from
an FY23 appropriation in the amount of$216,000 for Storm Sewer Replacements (Project
5586500001) and an FY23 appropriation in the amount of $118,500.00 for Storm Sewer
Improvements/Extensions (Project 5586500020).
L
ACTION TO BE TAKEN
I respectfully request adoption of the attached resolution awarding the Public
Improvement Construction Contract for the Maus Park Lake Pump Station Culvert Repair
Project in the amount of $525,172.00 to Tschiggfrie Excavating.
Attach.
Prepared by Deron Muehring
cc: Crenna Brumwell, City Attorney
Jenny Larson, Chief Financial Officer
Tony Breitbach, Purchasing and Risk Manager
John Klostermann, Public Works Director
Arielle Swift, Assistant Public Works Director
Deron Muehring, Civil Engineer II
3
Prepared by Deron Muehring City of Dubuque Engineering 50 W 13'h St Dubuque, Iowa 52001 (563)589-4270
Return to Adrienne N. Breitfelder City of Dubuque City Clerk 50 W 13'h St Dubuque, Iowa 52001 (563)589-4100
RESOLUTION NO. 324-23
AWARDING THE PUBLIC IMPROVEMENT CONSTRUCTION CONTRACT FOR THE
MAUS PARK LAKE PUMP STATION CULVERT REPAIR PROJECT
WHEREAS, sealed proposals have been submitted by contractors for the Maus
Park Lake Pump Station Culvert Repair Project (the Project) pursuant to Resolution No.
291-23 and Notice to Bidders published on the City of Dubuque, Iowa website and plan
room service with statewide circulation on the 6th day of September 2023; and
WHEREAS, said sealed proposals were opened and read on the 26th day of
September 2023 and it has been determined that Tschiggfrie Excavating, Co. of Dubuque
Iowa, with a low bid in the amount of $525,172.00 is the lowest responsive, responsible
bidder for the Project.
NOW THEREFORE, BE IT RESOLVED BY THE CITY COUNCIL OF THE CITY
OF DUBUQUE, IOWA:
SECTION 1. That a Public Improvement Contract for the Project is hereby awarded
to Tschiggfrie Excavating Co. and the City Manager is hereby directed to execute a Public
Improvement Contract on behalf of the City of Dubuque for the Project.
Passed, approved, and adopted this 2nd day of October 2023.
Attest: Brad M. , Mayor
Trish L. Gleason, Assistant City Clerk