# Iowa Impacs #009-RFB-WRBWL-CY26-17

Construct a Nutrient-Reduction Wetland in Benton County, Iowa

**Posted:** November 11, 2026
**Respond By:** December 10, 2026
**Identifier:** 009-RFB-WRBWL-CY26-17
**NAICS:** 237990

The Iowa Department of Agriculture and Land Stewardship is seeking a contractor to build a nutrient-reduction wetland in Benton County, Iowa.
- **Government buyer:** Iowa Department of Agriculture & Land Stewardship, Division of Soil Conservation and Water Quality.
- **Project:** Constructed nutrient-reduction wetland in Benton County, near Vinton; Bid 26-17, Project ID Ben850929B.
- **Work requested:** Site preparation, seeding, drain-tile investigation and removal, excavation and earthfill, steel sheet piling, drainage and water-control structures, erosion control, and related materials.
- **Notable requirements:** Install a 18-inch wetland-bottom clay liner in two 9-inch lifts; use dual-wall, non-perforated 6-inch polyethylene pipe; provide specified aluminized corrugated metal pipe (CMP) components; and install Class E riprap and Type 5B turf reinforcement mat.
- **OEMs and vendors:** No manufacturers, OEMs, or product vendors are identified. Iowa Department of Inspections, Appeals & Licensing is mentioned as a bidder-registration authority, not as a supplier.
- **Estimated construction value:** $250,000–$350,000.
- **Performance:** Construction begins within seven days after the preconstruction meeting. Construction and seeding have separate completion deadlines; no contract term or option years are specified.

### Description

The Iowa Department of Agriculture & Land Stewardship, Division of Soil Conservation and Water Quality, is seeking bids for construction of a nutrient reduction wetland in Benton County. Work includes clearing, excavation and grading, sheetpile and tile installation, water-control structures, riprap, turf reinforcement mat, silt fence, and seeding. The notice gives an estimated construction cost range of $250,000 to $350,000; bids require a 10% bid bond, and the successful bidder must provide a performance/payment bond equal to 100% of the contract price. The construction deadline is November 1, 2027.

[View original listing](https://app01.jaggaer.com/apps/Router/ViewSourcingEvent?AuthToken=1%3AAES2%23CHP3PUiiBX9S7RawW%2BIDK5VnPpzQhFeRnMiZwPZxZZqkIo%2FdIdsuHkubI68HN8km%2FNtGVqiy6moS7l4ezN%2BftbXJxVwv6sNeO7K4R9C1dyOAWGZMERiKRoTEYGTDQkzYit8MV0OVF%2BFenid02m5RXeeCRJUMHZ%2BQZw%3D%3D&tmstmp=1794506850918)