Watershed BMPs, Big Creek Beach, Polk County

The State of Iowa DNR is seeking a qualified contractor to perform stormwater infrastructure upgrades at Big Creek State Park’s beach area. The scope includes installing a new storm sewer system, replacing existing concrete flatwork, and excavating a stormwater retention basin. Work is expected to start after Labor Day weekend, with all bid documents available through the Beeline & Blue planroom. Interested firms must submit a sealed bid by the stated deadline and direct any pre‑bid questions to the procurement specialist. • Location: Big Creek State Park, Polk County, IA • Services: storm sewer installation, concrete flatwork replacement, stormwater basin excavation • Contract type: competitive bid (Invitation for Bid) • Bid submission deadline: 9/17/2026 11:00 AM CST • Required documents: plans, specifications, proposal forms (available online/at Beeline & Blue) • Primary contact: Darin Galbraith, Procurement Specialist