How991129B Nutrient Reduction Wetland

The Iowa Department of Agriculture & Land Stewardship, Division of Soil Conservation and Water Quality, is soliciting bids for the How991129B Nutrient Reduction Wetland Project located in Howard County, Iowa. This construction project involves comprehensive wetland restoration and water quality improvement, with specific deliverables including site preparation, excavation, earthwork, seeding, drainage tile investigation, aluminum toe wall installation, and water control structure implementation. The project scope encompasses approximately 9,610 cubic yards of earthwork, 550 linear feet of tile installation, 28 tons of riprap and erosion stone, and 2.1 acres of seeding. Bids will be received electronically through the Iowa Management of Procurement and Contracts System (IMPACS) until 3:00 PM on September 11, 2025, with a bid opening teleconference scheduled for 3:15 PM on the same date. A mandatory pre-bid conference is scheduled for August 28, 2025, at 11:00 AM at the USDA-NRCS Service Center in Cresco, IA, and all questions must be submitted in writing by September 4, 2025.

Bidders must be registered with the Iowa Division of Labor and are required to submit a 10% bid bond with their proposal. Non-Iowa corporations must provide proof of authorization to do business in Iowa prior to contract execution. The successful bidder will be required to furnish a Performance/Payment Bond for 100% of the contract price. The project has specific completion deadlines, with all construction work to be completed by November 30, 2026, and seeding to be finished by December 15, 2026. The estimated construction cost ranges from $100,000 to $120,000, with payment made through monthly estimates at 97% of completed work value and a 30-day retainage period after final acceptance. Liquidated damages are specified at $175 per day for general work delays and $125 per day for seeding-related delays. Materials purchased for the contract will be exempt from sales and use tax, and the project follows Natural Resources Conservation Service (NRCS) Conservation Practice Standards for constructed wetlands and grade stabilization structures.