Iowa Impacs #009-RFB-WRBWL-CY26-08

Construction of Nutrient Reduction Wetland in Calhoun County, Iowa

This opportunity involves the construction of a nutrient reduction wetland in Calhoun County, Iowa, managed 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 - Project Scope: - Construction of a nutrient reduction wetland (Project Cal883432B 26-08) - Selective clearing, excavation, and grading - Installation of 2,750 sq ft of tied-concrete block mat - Installation of 769 linear feet of tile and outlet structures - Placement of 31 tons of riprap and erosion stone - Seeding of approximately 4 acres - Total earthwork: approximately 13,800 cubic yards - Plans and specifications prepared by ISG Inc. - Estimated construction cost: $135,000 to $155,000 - Notable Requirements: - 10% bid bond required - 100% performance and payment bond required - Bidders must be registered with the Iowa Department of Inspections, Appeals & Licensing - No specific OEMs or product manufacturers are named in the solicitation - All work must be completed within specified deadlines for construction and seeding

Description

This is a Request for Bids (RFB) for the construction of a nutrient reduction wetland in Calhoun County. The project involves selective clearing, excavation and grading, tied-concrete block mat placement, tile and outlet structures, riprap placement, and seeding. The estimated construction cost range is $135,000 to $155,000. Construction must commence within 7 days of the preconstruction meeting and be completed by November 30, 2026, with seeding deadlines by December 15, 2026.

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