Winn 970905C 25-19

The Winneshiek County Wetland Project is a traditional breakpoint nutrient reduction wetland. The project involves selective clearing, excavation, grading, steel sheetpile installation, tile installation, water control structure, and seeding. The estimated construction cost range is $300,000 to $400,000. The project includes approximately 18,700CY of earthwork, installation of 1,403 SF of steel sheetpile, water control structure, 385 LF of tile installation, 116 LF of drawdown pipe, 920 TN of riprap and clean stone, 115 CY of concrete grout, and 8.7 acres of seeding. The project is part of the Water Quality Initiative to help implement the Iowa Nutrient Reduction Strategy. • The project has a completion date of November 15, 2026, for all work except seeding, and December 15, 2026, for seeding. • Liquidated damages will be applied if the project is not completed on time. • The project will be awarded to the lowest responsible responsive bidder. • Bidders must be registered with the Iowa Department of Inspections, Appeals & Licensing. • A pre-bid meeting was held on December 2, 2025, at 11:00 AM.