26-10 Car833409A (Carroll)

The Iowa Department of Agriculture & Land Stewardship is seeking a qualified contractor to construct a nutrient‑reduction wetland in Carroll County. The work includes extensive earthwork, installation of drainage tile, construction of concrete outlet and pump‑basin structures, placement of rip‑rap, installation of a solar‑powered pump system, and seeding of approximately 2.4 acres of wetland and buffer areas. The contract is bid‑priced on a sealed‑bid basis, requires a 10 % bid bond and a 100 % performance bond, and must be completed by September 2027 (non‑seeding) with final seeding by December 2027. • Site grading, excavation (~19,861 cy), and earth‑fill for embankments and a low‑hazard dam. • Installation of 835 ft of HDPE pipe, reinforced concrete pipe, and a solar‑panel‑powered pump system. • Rip‑rap placement, anti‑seep collars, and vegetative seeding (structure and buffer). • Mandatory pre‑bid meeting (virtual) on 6 Oct 2026; questions due by 14 Oct 2026; sealed‑bid submission by 27 Oct 2026.