Opportunity
Iowa Impacs #009-RFB-WRBWL-CY26-17
Construct a Nutrient-Reduction Wetland in Benton County, Iowa
Posted
November 11, 2026
Respond By
December 10, 2026
Identifier
009-RFB-WRBWL-CY26-17
NAICS
237990
The Iowa Department of Agriculture and Land Stewardship is seeking a contractor to build a nutrient-reduction wetland in Benton County, Iowa. - Government buyer: Iowa Department of Agriculture & Land Stewardship, Division of Soil Conservation and Water Quality. - Project: Constructed nutrient-reduction wetland in Benton County, near Vinton; Bid 26-17, Project ID Ben850929B. - Work requested: Site preparation, seeding, drain-tile investigation and removal, excavation and earthfill, steel sheet piling, drainage and water-control structures, erosion control, and related materials. - Notable requirements: Install a 18-inch wetland-bottom clay liner in two 9-inch lifts; use dual-wall, non-perforated 6-inch polyethylene pipe; provide specified aluminized corrugated metal pipe (CMP) components; and install Class E riprap and Type 5B turf reinforcement mat. - OEMs and vendors: No manufacturers, OEMs, or product vendors are identified. Iowa Department of Inspections, Appeals & Licensing is mentioned as a bidder-registration authority, not as a supplier. - Estimated construction value: $250,000–$350,000. - Performance: Construction begins within seven days after the preconstruction meeting. Construction and seeding have separate completion deadlines; no contract term or option years are specified.
Description
The Iowa Department of Agriculture & Land Stewardship, Division of Soil Conservation and Water Quality, is seeking bids for construction of a nutrient reduction wetland in Benton County. Work includes clearing, excavation and grading, sheetpile and tile installation, water-control structures, riprap, turf reinforcement mat, silt fence, and seeding. The notice gives an estimated construction cost range of $250,000 to $350,000; bids require a 10% bid bond, and the successful bidder must provide a performance/payment bond equal to 100% of the contract price. The construction deadline is November 1, 2027.