Mystique Community Ice Center Settlement Remediation Project_InitiateCity of Dubuque
City Council Meeting
Copyrighted
April 4, 2022
Items to be set for Public Hearing # 4.
ITEM TITLE: Mystique Community Ice Center Settlement Remediation Project: Initiate
Public Improvement Bidding Process
SUMMARY: City Manager recommending City Council approval of a resolution to
grant preliminary approval to the construction plans and specifications;
and establish April 18, 2022, as the date of the public hearing; and
hereby authorize to advertise for bid proposals for the Mystique Ice
Center Settlement Remediation Project.
RESOLUTION Mystique Community Ice Center Settlement
Remediation 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
SUGGESTED Receive and File; Adopt Resolution(s), Set Public Hearing for April 18,
DISPOSITION: 2022Suggested Disposition:
FIN ik[91:ILyil21ZIII l+]
Description Type
Mystique Community Ice Center Settlement City Manager Memo
Remediation Project-MVM Memo
Staff Memo Staff Memo
Resolution 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: Mystique Community Ice Center
Settlement Remediation Project
Initiate Public Improvement Bidding Process
DATE: March 31, 2022
Dubuque
WAWca 914
ii
2007-2012.2013
2017*2019
Assistant City Engineer Robert Schiesl is recommending City Council approve of
resolution to grant preliminary approval to the construction plans and specifications; and
establish April 18, 2022, as the date of the public hearing; and hereby authorize to
advertise for bid proposals for the Mystique Ice Center Settlement Remediation Project.
I concur with the recommendation and respectfully request Mayor and City Council
approval.
k�4
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
THE CITF
DUjB_ E
Masterpiece on the Mississippi
TO: Michael C. Van Milligen, City Manager
Gus Psihoyos, City Engineer
FROM: Robert Schiesl, Assistant City Engineer
DATE: March 31, 2022
SUBJECT: Mystique Community Ice Center
Settlement Remediation Project
Initiate Public Improvement Bidding Process
INTRODUCTION
Dubuque
III -America M4
2007,2012.2013
2017*2019
The purpose of this memorandum is to authorize the initiation of the public bidding
procedure for the Mystique Ice Center Settlement Remediation Project.
BACKGROUND
The Mystique Community Ice Center was designed, developed, and built under a
Development Agreement between and among DICE, the City, the Dubuque Racing
Association (DRA), and Battlefield Dubuque, LLC which later transferred and assigned
its interest to Northern Lights Hockey, LLC. The Agreement commenced October 30,
2009. The Center opened September 18, 2010. The building is owned by the City.
The Ice Arena was constructed on property in close proximity to the Mississippi River, on
less than favorable subsurface soil conditions. During the original design development for
the Ice Center, the geotechnical soils report indicated substantial depths of loose fill sand
and miscellaneous landfill materials discovered by the subsurface borings.
The Ice Arena building structure was constructed on a deep foundation system, however
the lower -level main floor was constructed as an unsupported slab -on -grade. Since initial
construction, the foundation supported structure has displayed no signs of settlement or
movement. However, the unsupported slab -on -grade lower level has developed
significant differential settlement throughout the main floor.
In November 2020, the City completed a full interior building scan of the Mystique Ice
Center which indicated settlement in the range of zero to 4 plus inches throughout the
main floor concrete slab. The differential settlement has caused operational issues with
the ice rink, rotational movement of the stadium bleachers, movement in the unsupported
interior CMU walls, and settlement of ice system mechanical equipment.
In the spring and summer of 2021, additional ongoing settlement was observed. As a
result, staff felt that it was important to limit and restrict occupancy the northeast portion
of the facility while a ground penetrating radar (GPR) scan assessment of the lower -level
main floor. The GPR scan results indicated that there were no major voids (greater the 1-
foot or more) under the concrete floor slab. The GPR scan indicated possible voids up to
4" in various locations.
Based on the increased frequency of additional observed settlement and the presence of
minor voids under the main floor concrete slab, the City completed a Floor Slab Void
Filling, Lifting and Leveling Project as an interim remediation options to slow down the
floor slab settlement and allow for occupancy use until full remediation work can be
performed.
DISCUSSION
Over the past 12 months, City staff has been evaluating foundation soil remediation
alternatives and consulting with several design -build geotechnical contractors that
specialize in low mobility, low head room clearance, interior finished building, non-
destructive deep foundation stabilization applications.
All of the specialty geotechnical contractors recognize and acknowledge the complexity
of the subsurface conditions as well as the challenges in performing non-destructive
repairs within the confined finished space of the Ice Arena. As a result, many of the
specialty contractors are proposing a combination of solutions to provide both long-term
settlement control and improve support to the existing slab -on -grade floor conditions.
Many of the proposed remediation solutions included the installation of geopiers,
micropiles, helical piles, deep compaction grout applications, deep injection polymers,
polyurethane foam grouting and slab -jacking.
Due to the highly specialized nature of the settlement remediation work and the
proprietary methods and techniques used to perform the subsurface soil stabilization and
remediation work, the City will develop plans showing the settlement and remediation
areas; a scope of work, specifications and performance measures that the specialty
contractors will use to prepare and submit a proposed remediation work plan along with
an associated bid proposal for the work. Following the selection and award of a contract,
the selected contractor will be required to provide a proposed remediation work plan that
is signed by a Licensed Professional Engineer in the State of Iowa. This process is very
similar to the Request for Proposal (RFP) process that the City uses when soliciting
consultant professional services.
Staff will solicit bids for the Settlement Remediation Project, the Rink Ice System Removal
and Replacement Project, and the Ice Rink Concrete Subfloor Project at this time. In
accordance with the competitive quotation requirements of Iowa Code, Section 26.14,
other phases of the project that will be informally bid during the month of April are as
follows:
• Move Furniture and Equipment • Remove and Replace Rink Dasher Boards
• Excavate Arena Rink Subfloor Area • Facility Clean up
• Remove and Replace Rink Dasher Boards
• Remove and Replace Stadium Bleachers (1 St & 2nd Rows)
PROJECT SCHEDULE
The schedule for the project will be as follows:
Initiate Bidding
April 4, 2022
Publish Notice to Bidders, Advertisement for Bids
April 8, 2022
Publish Notice of Hearing on Plans & Specifications
April 8, 2022
Public Hearing
April 18, 2022
Receipt of Bids
May 10, 2022
Award of Contract
May 16, 2022
Completion Date
September 1, 2022
The OVERALL SCHEDULE for the Mystique Ice Center Settlement Remediation Project
is as follows:
• June 1, 2022 - Facility will be closed, and work will begin.
• November 1, 2022 - Facility will reopen to the public, work completed.
BUDGETIMPACT
Staff worked with several design -build geotechnical contractors to evaluate remediation
alternatives and to establish budgetary cost projections. Due to the specialized nature of
the settlement remediation work and the proprietary methods that may be used, the
contractor scope and planning level estimates provided had a varying range in cost. Due
to the unique nature of the project, there are no similar projects or historical costs to use
as a reference, staff is providing the anticipated settlement remediation project as an
estimated cost range.
The estimate of probable cost for the Mystique Ice Center Settlement Remediation Project
is summarized in the following table:
Description
Cost Estimate
Range
Construction - Settlement Remediation
$2,000,000 - $3,500,000
Consultant Services
51,510
Engineering Dept. Services and Administration
20,000
Total Construction Cost Estimate
$2,071,510 - $3,571,510
The proposed project funding is summarized as follows:
CIP No.
Fund Description
Fund Amount
3502890
Ice Center Settling Remediation
$ 4,600,000
Total Project Funding
$ 4,600,000
REQUESTED ACTION
I respectfully request that the City Council grant preliminary approval to the construction
plans and specifications; and establish April 18, 2022, as the date of the public hearing;
and hereby authorized to advertise for bid proposals for the Mystique Ice Center
Settlement Remediation Project through adoption of the attached resolution.
cc: Jenny Larson, Director of Finance and Budget
Marie Ware, Leisure Services Manager
Mike Shimkus, WHKS
FAPROJECTS\Mystique Community Ice Center\2022 Settlement Remediation Project\Settlement Remediation Project\Initiate
Prepared by Robert Schiesl City of Dubuque Engineering 50 W. 13th St Dubuque IA 52001 (563)589 4270
Return to Adrienne N. Breitfelder City Clerk City of Dubuque, 50 W. 131h St. Dubuque, IA 52001 (563)589-4100
RESOLUTION NO. 113-22
MYSTIQUE COMMUNITY ICE CENTER SETTLEMENT REMEDIAITON 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
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
Mystique Ice Center Settlement Remediation Project, in the estimated cost range amount
of $2,000,000 to $3,500,000, 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 18th day of April 2022, at 6:30 p.m. in the
Historic Federal Building Council Chambers (second floor), 350 West 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.
Passed, approved, and adopted this 4th day of April 2022.
Attest:
'W� A,44
Adrienne N. Breiffelder, City Clerk
NOTICE OF PUBLIC HEARING ON PLANS, SPECIFICATIONS, FORM OF
CONTRACT, AND ESTIMATED COST FOR THE
MYSTIQUE COMMUNITY ICE CENTER SETTLEMENT REMEDIAITON 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 Mystique Ice Center Settlement Remediation Project, in
accordance with the provisions of Chapter 26, Code of Iowa, at 6:00 p.m., on the 18t" day
of April 2022, in the Historic Federal Building Council Chambers (second floor), 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 project will provide for subsurface soil stabilization and settlement remediation
work at the Mystique Community Ice Center to provide both long-term settlement
control and improve support to the existing slab -on -grade floor conditions which
may include the installation of geopiers, micropiles, helical piles, deep compaction
grout applications, deep injection polymers, polyurethane foam grouting and slab -
jacking.
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 81" day of _April , 2022.
Adrienne N. Breitfelder, City Clerk