26-16 Buc880725C (Buchanan)

The Iowa Department of Agriculture & Land Stewardship, Division of Soil Conservation and Water Quality is requesting sealed bids for construction of a nutrient reduction wetland in Buchanan County (Project ID: Buc880725C, Bid Number: 26-16), with bids due November 12, 2026 at 3:00 PM CST and a pre-bid conference on October 28, 2026 at 9:30 AM in Winthrop.

The scope encompasses approximately 22,900 cubic yards of earthwork, 2,500 square feet of tied concrete block mat installation, a water control structure, 1,270 linear feet of corrugated polyethylene tile (6", 10", and 12" sizes), 30.5 tons of erosion stone, and seeding of 6 acres across structure and buffer areas. Work includes selective clearing, excavation, grading, tile installation, riprap placement, and site preparation. Construction must commence within seven days of the preconstruction meeting and be completed by November 15, 2027, with seeding deadlines of December 15, 2027 for both buffer and structure areas.

The estimated construction cost range is $180,000 to $200,000. Bidders must submit a bid bond equal to 10% of the bid amount and hold current registration with the Iowa Department of Inspections, Appeals & Licensing. The successful bidder will furnish a Performance/Payment Bond equal to 100% of the contract price. This is a USDA-NRCS partnership project; Plans and Construction Specifications were prepared by USDA-NRCS engineer Nick Klingenberg.

All contract documents, including Plans, Specifications, and Bid Book, are available through the SciQuest bidding platform. Bidders must register on the plan holders list by written request to receive meeting minutes, addenda, and updated information. Questions regarding Plans and Construction Specifications must be submitted in writing by 3:00 PM on November 5, 2026 to be included in a final addendum. The pre-bid conference offers both in-person and virtual attendance options.