Cer962218C 26-06 (Cerro Gordo)

This solicitation seeks a qualified contractor to design and construct a tile‑zone nutrient‑reduction wetland in Cerro Gordo County, Iowa. The work includes extensive earthwork, installation of concrete inlet/outlet structures, dual‑wall HDPE and concrete drainage pipe, rip‑rap, turf‑reinforcement mat, and seeding of buffer and structural areas. The contract is a fixed‑price bid (RFB) with a 10 % bid bond and a 100 % performance bond requirement. The contractor must be registered with the Iowa Department of Inspections, Appeals & Licensing and provide all required bonds, insurance, and a construction progress schedule. The project must be completed by mid‑2027, with specific deadlines for non‑seeding work (June 15, 2027) and two seeding phases (June 30 and September 15, 2027). Liquidated‑damage penalties apply for late completion. • Scope: Site stripping, excavation (~32 500 CY), earth‑fill, drainage‑tile removal, installation of concrete structures, HDPE & concrete pipe (~2 500 LF total), rip‑rap (22 TN), turf‑reinforcement mat (1 202 SY), seeding (≈10 ac). • Procurement: IMPACS electronic bidding, 10 % bid bond, 100 % performance bond, mandatory plan‑holder registration, pre‑bid conference (July 1, 2026) – attendance optional. • Timeline: Bid opening July 16, 2026; construction to be finished by September 15, 2027; penalties $175/day (non‑seeding) and $125/day (seeding).