Cla953734C 26-11 (Clay)

This sealed‑bid solicitation seeks a qualified contractor to construct a traditional breakpoint nutrient‑reduction wetland in Clay County, Iowa. The work includes extensive earthmoving, installation of steel sheet‑piles, HDPE tile, reinforced concrete pipe, a water‑control structure, riprap placement, concrete grout, and seeding of over 15 acres. The project’s estimated construction cost is $450,000–$550,000, with a 10 % bid bond and a 100 % performance bond required. Construction must start within 7 days of the pre‑construction meeting and be completed by 15 November 2027, with seeding finished by 15 December 2027. A pre‑bid conference is scheduled for 7 Oct 2026 (in‑person optional, virtual mandatory if no RSVPs). Bids are due 27 Oct 2026, and the bid opening will be conducted publicly via Microsoft Teams. • Scope: selective clearing, excavation (≈15,204 cy), grading, 2,523 sf steel sheet‑pile, 540 lf HDPE tile, 957 lf reinforced concrete pipe, 303 t riprap, 46 cy grout, and 15.2 ac seeding. • Schedule: posting 28 Sep 2026 → pre‑bid 7 Oct 2026 → bid deadline 27 Oct 2026 → construction start ≤ 7 days after award → complete all work 15 Nov 2027, seeding 15 Dec 2027. • Bonds & certifications: 10 % bid bond, 100 % performance bond, registration with Iowa Department of Inspections, Appeals & Licensing, proof of authority for non‑Iowa firms. • Contact: Tracy Blocker ([email protected], (515) 344‑6279).