81st Street and Nieman Road Stream Crossing Repairs – Contract No. SMTC-C046

The Johnson County Board of County Commissioners is soliciting bids for the 81st Street and Nieman Road Stream Crossing Repairs project. The scope includes complete replacement and rehabilitation of sanitary sewer infrastructure, installation of new precast manholes, PVC and ductile‑iron pipe, cured‑in‑place pipe lining, removal and abandonment of existing sewers, concrete encasement, erosion‑control, surface restoration, and associated traffic control and bypass pumping. All work must comply with detailed drawings and specifications and include pre‑ and post‑construction CCTV inspections. Bids are to be submitted electronically via IonWave, with a mandatory 5 % bid bond payable to the Board of County Commissioners. • Replace 4‑ft precast manholes and install new 21‑in SDR‑26 PVC and 20‑in Class 50 ductile‑iron pipe. • Perform CIPP lining of new ductile‑iron pipe and conduct CCTV inspections. • Remove and abandon existing sanitary sewers, install reinforced concrete encasements and pipe supports. • Provide erosion‑and‑sediment control, surface restoration, seeding, sodding, and stream‑bank stabilization with graded rock. • Manage traffic control, bypass pumping, and all required permitting and testing.