Overview:
The current hydronic heating system boiler room piping is not installed correctly and was done as
a loop which "short-circuits" the system heating by providing the supply and return fluid in the
same line. The fluid in the system has only water and not glycol allowing the in-floor piping to
freeze at the perimeter piping further reducing the heating needs within the building. The entire
system needs flushed / cleaned to eliminate build-up in the system further reducing the
efficiency. Also the existing 2 boilers do not provide adequate heat to the system and the
exhaust vent piping is not installed to eliminate the exhaust from being sucked back in to the
combustion air piping.
The existing system's piping will be flushed / cleaned, the boiler room piping will be reinstalled to
meet the manufacturers requirements. All pumps will be replaced to allow glycol to be used in the
system. Glycol will be installed along with a system feeder to provide protection from the future
freezing. The boilers / controls will be replaced with higher capacity, more energy efficient units.
The exterior exhaust vent piping will be extended to meet the exhaust and mechanical code
requirements
We are seeking a licensed Iowa Plumbing/ Mechanical Contractor
DOT estimated start date to begin to May 8, 2023
Substantial completion is August 4, 2023.
Contract end date is August 18, 2023 this shall include all punch list items are completed, any inspections are completed and final has indicated final acceptance.
Materials are required 15 days after the NOTICE to proceed issued and submittal review and approval.
Pre-bid meeting will be held virtually and it is highly recommended. Site visit is not required but DOT will schedule one upon request. . To do so please email the purchasing contact listed under the bid contact information with a date and time you would like to visit the site.
It is the intent of the Iowa DOT to award the contract to the responsible bidder whose submitted quotation is the most advantageous to the Iowa DOT, cost and other factors considered. Other factors include, but are not limited to: meeting or exceeding mandatory requirements, proposed staffing, and meeting required time schedule.
Warranty is required for parts and labor as per attribute.
Pre-bid meeting will be held virtually and it is a highly recommended. A site visit is not required but DOT will schedule one upon request. To do so please email the purchasing contact listed under the bid contact information with a date and time you would like to visit the site.
The DOT is will be conducting a virtual pre-bid meeting for this project.
To join on your computer, mobile app or room device
Date:
March 31, 2023
Time: 1:00 p.m.
Join on your computer, mobile app or room device
Click here to join the meeting
Meeting ID:
297 531 984 175
Passcode:
XUNtHv
Download Teams | Join on the web
Or call in (audio only)
+1 515-817-6093,,469169796#
United States, Iowa City
Phone Conference ID:
469 169 796#
Iowa DOT Bid Opening
- To join the virtual is meeting, click the link below or you can join by phone and entering the conference id number followed by the # sign.
Date: April 13,2023
Time: 1:00 p.m.
Microsoft Teams meeting
Click here to join the meeting
Join on your computer or mobile app
Or call in (audio only)
+1 515-817-6093,
United States, Iowa City
Phone Conference ID: 757 823 640#
