HomeMy WebLinkAboutVIII-18 Approve Civic Arena Project - Change Order #3
City Council Memorandum
To: Mayor Fasbender & City Councilmembers
From: Chris Jenkins, Parks & Recreation Director
Date: May 20, 2024
Item: Arena Change Order
Council Action Requested: Approve Change Order #3 for the Arena
Refrigeration Project.
Background Information: During a portion of the demolition of the
mechanical rooms, ground penetrating radar (gpr) was used to identify
layout and depth of existing electrical conduits in the concrete floor slab.
This procedure could not have been done prior with all of the refrigeration
equipment in place, so was completed, as planned, after equipment
removal.
It was discovered that many of the conduits were within the concrete slabs
and not in the sub-grade as expected. This situation required much
additional and more delicate work to expose those conduits so they could
be preserved.
Along with the electrical conduit was a need to install a floor drain, required
by building code, which again had to be carefully routed around all of the
shallow electrical conduit.
This work has already been performed, this change order authorizes the
expense to be added to the contract and staff to pay the contractors.
Financial Impact: The extra expense is $20,018.00.
Advisory Commission Discussion: N/A
Council Committee Discussion: N/A
Attachments:
• Change Order #3
VIII-18
Change Order
Client: City of Hastings Change Order No: 3
Project: Hastings Civic Arena Renovation 5/13/24
The Contract is Changed as Follows:
Original Contract Value:$217,391.00
Net Prior Change Orders:$5,019,483.89
Contract Value Prior to this Change Order:$5,236,874.89
This Change Order Add (Deduct):$20,018.00
New Contract Value after Change Order:$5,256,892.89
Contract Time will be increased by zero (0) days.
The Date of Substantial Completions changes as follows:
NOT VALID UNTIL SIGNED BY THE CONSTRUCTION MANAGER, CONTRACTOR AND OWNER
Owner
By (Signature)
By (Typed)
Date
Mark Rasmussen
By (Typed)
Date
During demolition of the refrigeration plant, it was discovered that the concrete floor had numerous couduits running under the concrete, through the concrete, and
through equipment pads. This was an unforeseen situation that wasn't apparent until Ground Penetrating Radar (GPR) was used to find the extent of the conduits.
Multiple trades experienced increased costs. They are listed below:
1) Conduit penetrates a wall and goes straight down into the floor. This wall penetration was hidden behind an existing tank and was not visible prior to removal of the
tank. Saw cutter was required to chip concrete around floor penetration so electrical contractor could reroute conduit. If left as-is, this will be a code violation so it
must be corrected.
2) The abundance of conduits will require the saw cutter to do more chipping and less cutting - resulting in increased labor. Also, a longer than planned trench will need
to be cut and repoured to avoid many of the underground conduits.
3) The plumber needed to reroute his drain tie-in to a cleanout located outside the mechanical room. This was a longer piping run than was designed because historical
plans were not accurate. Abundance of buried conduits required the path to run underneath a wall vs through a doorway.
4) The Ground Penetrating Radar contractor was required to make multiple extra trips to mark all of the conduits, and to coordinate with saw cutter, electrical,
mechanical and plumbing contractors. When drain lines were not sized as print stated, a new path had to be found for a new drain tie in.
5) When rerouting gas line, a gas flange on the main line was found to have a leak. Apex paid for reroute. Added charge is only for replacement of the piece that had
leak, and added fitter labor.
5) Increased Apex trips / labor for contractor coordination and onsite meetings, creation / processing of change orders to subs.
Apex Facility Solutions, SBC
Construction Manager
By (Signature)
13055 Riverdale Drive NW, Suite 500-211, Coon Rapids, MN 55304
www.apex-co.us
VIII-18