Iowa Impacs #009_RFB_WRBWL_BY26-03

Construction of Nutrient Reduction Wetland in Hamilton County, Iowa

This opportunity involves the construction of a nutrient reduction wetland in Hamilton County, Iowa, led by the Iowa Department of Agriculture & Land Stewardship, Division of Soil Conservation and Water Quality. - Government Buyer: - Iowa Department of Agriculture & Land Stewardship, Division of Soil Conservation and Water Quality - OEMs and Vendors: - Flexamat Plus is specified as an acceptable tied concrete block mat, or an engineer-approved equal may be used - Products and Quantities: - Reinforced Concrete Pipe (RCP): 2,645 linear feet - High Density Polyethylene (HDPE) Dual Wall Pipe: 1,579 linear feet - Tied Concrete Block Mat (Flexamat Plus or equal): 2,350 square feet - Concrete Manholes: 2 units - Seeding: 2.9 acres - Services Requested: - Selective clearing, excavation, and grading for wetland construction - Unique or Notable Requirements: - Flexamat Plus is highlighted as a preferred OEM for the tied concrete block mat, but alternatives may be accepted with engineer approval - Project includes significant earthwork (approx. 21,135 cubic yards) - Bid bond (10%) and 100% performance/payment bond required - Contractor must be registered with the Iowa Department of Inspections, Appeals & Licensing - Pre-bid conference attendance is encouraged - Estimated contract value: $250,000 to $350,000 - Place of performance: Hamilton County, Iowa

Description

This solicitation is for the construction of a Tile Zone nutrient reduction wetland in Hamilton County, Iowa. The work includes selective clearing, excavation, grading, installation of reinforced concrete pipe and high density polyethylene dual wall pipe, tied concrete block mat installation, concrete manholes, and seeding. The project involves approximately 21,135 cubic yards of earthwork and various pipe and mat installations, with an estimated construction cost between $250,000 and $350,000. Bids are due by May 20, 2026, and a pre-bid conference is scheduled for April 20, 2026.

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