This solicitation seeks a qualified contractor to construct 18 saturated‑buffer (edge‑of‑field) water‑control structures across Poweshiek, Tama, and Marshall counties in Iowa. The work includes earthwork, grading, mobilization, seeding, installation of water‑control structures, HDPE drain tubing, rock placement, fence replacement, and associated site preparation. The contractor must be registered with the Iowa Department of Inspections, Appeals & Licensing, provide a 10 % bid bond, and be prepared to furnish a 100 % performance bond upon award. The contract is a fixed‑price, dollar‑based award valued between $155 k and $185 k, with a final completion deadline of June 1 2027.
• 18 saturated‑buffer structures (edge‑of‑field drainage improvements).
• Full civil‑construction scope: earthwork, grading, mobilization, seeding, water‑control structures, HDPE pipe, rock, fencing, and site prep.
• Required bonds: 10 % bid bond; 100 % performance bond; registration with Iowa licensing board.
• Budget: $155‑$185 k; final completion by 1 June 2027; liquidated‑damage penalties after that date.
• Pre‑bid conference (optional) on 23 Apr 2026; questions due 30 Apr 2026; sealed‑bid deadline 6 May 2026.