Chi941410B 26-04 (Chickasaw)

This contract funds the design‑build construction of a nutrient‑reduction wetland in Chickasaw County, Iowa, under the direction of IDALS’s Division of Soil Conservation and Water Quality. The work includes extensive earthwork, sheet‑pile installation, riprap placement, CMP pipe installation, concrete grout work, and extensive seeding of both structural and buffer areas, with strict performance‑bond and bid‑bond requirements. The project is structured as a unit‑price solicitation (RFB) with a 10 % bid bond, a 100 % performance bond, and liquidated‑damage penalties for schedule overruns. • Major items: ~25,970 CY of excavation, 600 SF of sheet pile, 425 TN of riprap, 86 LF of 15‑in. CMP pipe, 20 AC of seeding, and associated erosion‑control measures. • Schedule: sealed bids due July 16 2026, final construction completion by June 15 2027 (non‑seeding) with buffer seeding by June 30 2027 and structure seeding by September 15 2027. • Procurement: full‑open competition on the IMPACS system, with mandatory registration and compliance with Iowa Department of Inspections, Appeals & Licensing.