WINN981024d 25-20

The Iowa Department of Agriculture & Land Stewardship, Division of Soil Conservation and Water Quality, is seeking bids for the construction of a nutrient reduction constructed wetland in Winneshiek County, Iowa. This Request for Bids (RFB) encompasses a comprehensive project involving selective clearing, excavation, grading, and installation of various infrastructure components across approximately 8 acres. The specific scope includes 15,200 cubic yards of earthwork, 6,608 square feet of tied concrete block mat (Flexamat Plus or equivalent), 1,100 linear feet of tile installation, 108 linear feet of RCP drawdown pipe, 48 tons of riprap, 2 anti-seep collars, and 1 concrete apron with footing guard. A pre-bid conference is scheduled for December 2, 2025, at 11:00 AM at the Spillville Public Library, with attendance encouraged but not mandatory. Sealed bids must be submitted through the Iowa Management of Procurement and Contracts System (IMPACS) by 3:00 PM local time on December 17, 2025, with a public bid opening immediately following via Microsoft Teams. Written questions regarding plans and specifications must be submitted to the project engineer by 3:00 PM on December 9, 2025.

Bidders are required to submit a bid bond equal to ten percent of their bid amount and must be registered with the Iowa Department of Inspections, Appeals & Licensing. Non-Iowa corporations must provide proof of authorization from the Secretary of State to conduct business in Iowa prior to contract execution. The successful bidder will be required to furnish a Performance/Payment Bond equal to 100% of the contract price. The estimated construction cost range for this project is between $200,000 and $300,000. Contract documents, including plans, specifications, and the bid package, are available through the Iowa Agriculture website and the Department of Administrative Services vendor bidding portal. Interested parties must request inclusion on the plan holders list to receive addenda and meeting minutes. While no specific set-aside designations or disadvantaged enterprise requirements are explicitly mentioned, potential bidders should carefully review all documentation and ensure compliance with state procurement regulations and qualifications.