# Iowa Impacs #009-RFB-WRBWL-CY26-16

Construction of a Nutrient Reduction Wetland in Buchanan County, Iowa

**Posted:** October 17, 2026
**Respond By:** November 12, 2026
**Identifier:** 009-RFB-WRBWL-CY26-16
**NAICS:** 237990, 237110

The Iowa Department of Agriculture & Land Stewardship is seeking a contractor to build a nutrient reduction wetland in Buchanan County, Iowa.
- **Government buyer:** Iowa Department of Agriculture & Land Stewardship, Division of Soil Conservation and Water Quality.
- **Project:** USDA-NRCS nutrient reduction wetland construction; Project ID Buc880725C, Bid 26-16.
- **Requested work and quantities:**
  - Approximately 22,900 cubic yards of earthwork.
  - 2,500 square feet of tied concrete block mat.
  - 1,270 linear feet of tile installation.
  - 30.5 tons of erosion stone.
  - Seeding across 6 acres.
  - Selective clearing, grading, water control structure installation, riprap, and related construction.
- **OEMs and vendors:** No commercial OEMs or vendors are identified.
- **Estimated construction value:** $180,000–$200,000.
- **Schedule:** Construction is to begin within seven days of the preconstruction meeting unless otherwise agreed. Work and seeding are scheduled for completion during 2027, within applicable seeding periods.

### Description

The Iowa Department of Agriculture & Land Stewardship is soliciting bids to construct a nutrient reduction wetland in Buchanan County. Work includes selective clearing, excavation, grading, tied concrete block mat and tile installation, a water control structure, riprap, and seeding; the project includes about 22,900 cubic yards of earthwork, 2,500 square feet of tied concrete block mat, 1,270 linear feet of tile, 30.5 tons of erosion stone, and 6 acres of seeding. The stated estimated construction cost range is $180,000 to $200,000. Bids are due November 12, 2026, at 3:00 PM local time; bidders must submit a 10% bid bond and be registered with the Iowa Department of Inspections, Appeals & Licensing.

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