Iowa City Community School District Bidopportunities #26-04 Chi941410B

Construction of Nutrient Reduction Wetland in Chickasaw County, Iowa

This opportunity is for the construction of a Nutrient Reduction Wetland in Chickasaw County, Iowa, managed by the Iowa Department of Agriculture and Land Stewardship, Division of Soil Conservation and Water Quality. - Government Buyer: - Iowa Department of Agriculture and Land Stewardship, Division of Soil Conservation and Water Quality - Natural Resources Conservation Service (NRCS) Iowa (as a technical partner) - OEMs and Vendors: - No specific OEMs or proprietary brands are named; all materials must meet Iowa NRCS and project specifications and be approved by the design engineer - Products/Services Requested: - Major construction items: - Earthwork: ~25,970 cubic yards - Sheet pile installation: 600 square feet (including 10' and 7' long steel sheet piles) - Riprap: 425 tons - Concrete grout: 8 cubic yards - Corrugated metal pipe (CMP): 86 linear feet (15" diameter), plus water control, riser inlet, and flared end structures - Geotextile fabric: 235 square yards - Topsoil placement: 6,805 cubic yards - Seeding: 1.10 acres (structure), 18.90 acres (buffer), and waterway seeding - Site preparation and environmental controls: - Site stripping and preparation - Pollution and erosion control (including 1,116 linear feet of silt fence) - Tile investigation and repair - Mobilization and demobilization - Crop damage compensation - Multiple types of excavation (core trench, borrow, sediment forebay, tile outlet swale) - Earthfill for dam, berms, diversion dams, submerged berms - Drainfill (fine sand) - Installation of steel and metal fabrication for water control structures - Unique or Notable Requirements: - All materials and construction must comply with Iowa NRCS construction specifications - Detailed monitoring and quality assurance are required - Construction must start within 7 days of the preconstruction meeting - Strict completion deadlines for construction and seeding, with liquidated damages for late completion - Bid bond (10% of base bid) and performance bond (100% of contract award) required - Bidders must be registered with the Iowa Department of Inspections, Appeals & Licensing - Multiple downloadable documents provided (plans, specifications, schedule of prices, monitoring plan)

Description

This solicitation is for the construction of a Nutrient Reduction Wetland in Chickasaw County, Iowa. The work includes selective clearing, excavation and grading, sheet pile installation, tile and outlet structures, riprap placement, and seeding. The project involves approximately 25,970 cubic yards of earthwork, 600 square feet of sheet pile installation, 425 tons of riprap with 8 cubic yards of grout, 86 linear feet of CMP pipe, 1.10 acres of structure seeding, and 18.90 acres of buffer seeding. Construction must commence within 7 days of the preconstruction meeting, with overall completion by June 15, 2027, and seeding deadlines of June 30, 2027 for buffer seeding and September 15, 2027 for structure seeding.

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