Iowa City Community School District Bidopportunities #26-09 Har892022C (Hardin)

Construction of Nutrient Reduction Wetland in Hardin County, Iowa

This opportunity involves the construction of a nutrient reduction wetland in Hardin County, Iowa, led by the Iowa Department of Agriculture and Land Stewardship and the Natural Resources Conservation Service. - Government Buyers: - Iowa Department of Agriculture and Land Stewardship, Division of Soil Conservation and Water Quality - Natural Resources Conservation Service, Iowa State Office - Hardin County - OEMs and Vendors: - No specific OEMs are named; however, products such as reinforced concrete pipe (RCP), high-density polyethylene (HDPE) dual wall pipe, and corrugated metal pipe (CMP) are required, typically supplied by manufacturers like Advanced Drainage Systems, Contech Engineered Solutions, and Forterra Pipe & Precast. - Products/Services Requested: - Site stripping and preparation (1 LS) - Crop damage mitigation - Structure and buffer seeding (1.5 and 5.8 acres, respectively) - Mobilization and demobilization (1 LS) - Drain tile investigation and removal (2,800 LF) - Excavation and earthfill (over 9,500 CY total) - Topsoil placement (5,591 CY) - 4' x 4' concrete water control structure (1 unit) - 36" RCP wetland outlet pipe (79 LF) - HDPE dual wall pipe: 6" (1,455 LF), 8" (1,329 LF), 10" (51 LF), 12" (409 LF) - CMP tile outlets: 8" (3 units), 10" (2 units), 12" (1 unit), 15" (1 unit) - Stop log storage structure (1 unit) - Riprap (245 tons) - Unique/Notable Requirements: - Compliance with NRCS and Iowa DNR standards - Specific seeding periods and seed mixes for buffer and structure areas - Registration with Iowa Department of Inspections, Appeals & Licensing - 10% bid bond and 100% performance bond required - Project designed by Shive-Hattery, Inc. (Dan Jensen, P.E.) - Earthwork, pipe installation, and water control structures must meet detailed technical specifications - Seeding and construction must be completed within defined seasonal windows

Description

This solicitation is for the construction of a Tile Zone nutrient reduction wetland in Hardin County, Iowa. The work includes selective clearing, drain tile investigation and removal, excavation, grading, installation of reinforced concrete pipe (RCP), high density polyethylene (HDPE) dual wall pipe installation with CMP tile outlets, concrete water control structure, and seeding. The estimated construction cost is between $200,000 and $300,000. The project completion dates are June 15, 2027 for construction, June 30, 2027 for buffer seeding, and September 15, 2027 for structural seeding.

View original listing