26-10 Car833409A (Carroll) RFB

The State of Iowa Department of Agriculture and Land Stewardship is soliciting bids for the Car833409A Nutrient Reduction Wetland Project located in Carroll County. The project involves constructing a wetland to treat water from an existing ditch using a solar panel powered pump. The scope of work includes approximately 19,861 cubic yards of earthwork, 835 linear feet of pipe installation, 29 tons of riprap, and 2.4 acres of seeding. Key structural components include a Modified SW-513 concrete outlet structure and a lift station consisting of a SW-401 concrete structure and a solar pump system. The estimated construction cost for the project ranges from 150,000 to 250,000 dollars. Bids must be submitted via the IMPACS portal by 3:00 PM on October 27, 2026, and must include a bid bond for 10 percent of the base bid. The contract will be awarded to the lowest responsible bidder based on price and qualifications, including registration with the Iowa Department of Inspections, Appeals and Licensing and ownership of at least 20 percent of their own equipment. The successful contractor must provide a performance and payment bond for 100 percent of the contract price within 14 days of the award. All general construction work must be completed by September 1, 2027, with buffer and structure seeding completed by December 15, 2027.