2026 Lake Mattoon Dam Repairs

The City of Mattoon is soliciting sealed lump sum proposals for the 2026 Lake Mattoon Dam Repairs, specifically focusing on PCPC pattern work and patching of the dam chute. The scope of work includes the installation of patches in the bottom of the chute, such as the east side patch north of the baffle piers, utilizing #6 reinforcement bars embedded at 12 inch centers. All work must be 100 percent completed within 30 working days from the contract commencement date, with liquidated damages of 750 dollars per calendar day assessed for any delays beyond this timeline. Eligible bidders must attend a mandatory onsite pre-bid meeting on September 23, 2026, at 10:00 a.m. at the Lake Mattoon Dam. All inquiries must be submitted by September 25, 2026, and sealed bids labeled 2026 Lake Mattoon Dam Repairs are due to the City Clerk's office by 11:00 a.m. on September 30, 2026. The contractor is required to perform at least 25 percent of the work with their own forces and must comply with the Illinois Prevailing Wage Act for Coles County, submitting certified payrolls weekly. The contract requires a performance and payment bond, as well as specific insurance minimums, including 1 million dollars in automotive liability and 500,000 dollars in employers liability. Progress payments will be issued monthly, with a 10 percent retainage withheld until final acceptance of the work. The City of Mattoon reserves the right to waive technicalities and reject any or all proposals.