Flo971628B 26-07 (Floyd)

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 Floyd County, Iowa, with bids due August 26, 2026 at 3:00 PM CDT. The project includes two alum applications at Silver Lake in Delaware County to reduce phosphorus concentrations.

The scope encompasses selective clearing, excavation, grading, steel sheet pile installation, tile installation, water control structures, riprap placement, concrete grout work, seeding, and erosion control measures. Quantified deliverables include approximately 10,800 cubic yards of earthwork, 1,202 square feet of steel sheet pile installation, 1,977 linear feet of tile installation, 437 tons of riprap, 87 cubic yards of concrete grout, 175 linear feet of straw wattle, 430 linear feet of silt fence, and 7.1 acres of seeding across 27 itemized line items.

The estimated construction cost range is $200,000 to $300,000. Construction must commence within 7 days of the preconstruction meeting and be completed by June 15, 2027, with buffer seeding due by June 30, 2027 and structure seeding due by September 15, 2027.

Bidders must be registered with the Iowa Department of Inspections, Appeals & Licensing and must submit a bid bond equal to 10 percent of the bid amount. The successful bidder will furnish a Performance/Payment Bond equal to 100 percent of the contract price. Non-Iowa corporations must provide proof of authorization from the Secretary of State to conduct business in Iowa prior to contract execution.

A pre-bid conference is encouraged on August 11, 2026 at 10:00 AM at the City of Floyd City Park. Written questions concerning plans and specifications are due to the project engineer by 3:00 PM on August 18, 2026. Contract documents are available through the Iowa Department of Administrative Services website.