Radiant Heat System Replacement at the Dyersville Maintenance Garage

The Iowa Department of Transportation (Iowa DOT) is seeking competitive bids for a Request for Bids (RFB 645-RFB-2230-2026) to replace radiant heat systems at the Dyersville Maintenance Garage and the Williamsburg Garage. The primary scope of work requires contractors to provide all materials, labor, and equipment for removing and replacing existing radiant heat systems, specifically involving the demolition of six existing CRV burners, two vacuum pumps, associated piping, controls, and thermostats. Deliverables include installing new gas-fired radiant heating equipment, including CRV-B8 and CRV-B10 burners, new vacuum pumps, control panels, thermostats, outside air PVC piping, and flat sheet metal reflectors. The bid opens on October 22, 2025, at 1:00 PM CDT and closes on November 12, 2025, at 1:00 PM CST, with a public bid opening via Microsoft Teams or phone conference. Evaluation criteria include cost, mandatory requirements compliance, proposed staffing, and time schedule adherence. Contractors must schedule site visits with Teri Schulz, provide lead times on materials, estimated project completion days, and disclose any tariffs, with an estimated project start date upon Notice to Proceed and completion date of May 30, 2026.

Bidders must be registered with the Iowa Department of Workforce Development Division of Labor according to Chapter 91C, Code of Iowa 2015. No specific set-aside designations for disadvantaged enterprises are mentioned in the documentation. Contractors must furnish a performance and payment bond covering 100 percent of the contract value if the contract amount is $25,000 or more. The Iowa DOT is a tax-exempt agency, and Davis-Bacon wages do not apply. Payment terms are Net 60 with monthly payments made at 97 percent of work performed value. While no incumbent vendors are specified, the project involves replacing existing infrastructure at a maintenance garage spanning approximately 240 feet in length and 80 feet in width. The project requires comprehensive system testing, verifying vacuum levels, and providing photographic documentation. Though a specific budget range is not explicitly stated, the complexity of the radiant heat system replacement suggests a significant investment in specialized HVAC infrastructure for the maintenance facility.