26-07 Floe971628B (Floyd)

The Iowa Department of Agriculture and Land Stewardship, Division of Soil Conservation and Water Quality, is requesting sealed bids for construction of a breakpoint nutrient reduction wetland in Floyd County (Project Flo971628B, Bid No. 26-07), with bids due August 26, 2026 at 3:00 PM through the Iowa Management of Procurement and Contracts System (IMPACS), and a pre-bid conference on August 11, 2026 at 10:00 AM at City of Floyd City Park.

The scope involves selective clearing, excavation, grading, and installation of approximately 10,800 cubic yards of earthwork; 1,202 square feet of steel sheetpile; 1,977 linear feet of tile drainage; a water control structure with inlet riser and drawdown pipe; 437 tons of riprap; 44.5 tons of granular foundation material; 87 cubic yards of concrete grout; 175 linear feet of straw wattle and 430 linear feet of silt fence for erosion control; and seeding across 7.1 acres (0.7 acres structural seeding and 6.39 acres buffer seeding). The design conforms to Natural Resources Conservation Service Practice 656 standards. Contractors must comply with ASTM standards for materials, Iowa One Call utility locating requirements, and OSHA standards. The site is located in Section 28, Township 97 North, Range 16 West, Floyd County, and will treat overland flow from approximately 174 acres of agricultural land (including 100 acres of tiled land) discharging to the Cedar River.

The estimated construction cost range is $200,000 to $300,000. Bids are submitted on a unit-price basis using the prescribed Schedule of Prices Worksheet. Construction must be completed by June 15, 2027; buffer seeding by June 30, 2027; and structure seeding by September 15, 2027. Liquidated damages are $175 per day for construction work and $125 per day for seeding. Bidders must provide a 10% bid bond and, if awarded, furnish a 100% performance bond within 14 days of notice of award. Contractors must be registered with the Iowa Department of Inspections, Appeals & Licensing and demonstrate financial stability, relevant experience, ownership of at least 20% of required equipment, and satisfactory performance records. Materials are exempt from Iowa sales and use tax under Iowa Code Sections 422.42 and 422.47. Written questions are due by 3:00 PM on August 18, 2026, directed to Spencer Pech, P.E., at ISG Inc., with Tracy Blocker copied.