Flood Reduction Resiliency Levee Improvements - Schedule A

This project involves comprehensive flood mitigation and levee upgrades in Reedsport, Oregon. The work includes constructing a sand trench and sand berm at Champion Park using owner‑furnished sand, removing and replacing four levee gatewell structures with new piping and valves, importing approximately 21,000 cubic yards of earthen fill to raise the existing levee, and installing roughly 500 linear feet of 36‑inch high‑density polyethylene pipe to enclose an existing open ditch toward the Elm Street Pump Station. An optional additive bid alternate covers improvements to the 16th Avenue Pump Station. The contract is subject to Davis‑Bacon prevailing‑wage requirements, Oregon Prevailing Wage Law, Buy America provisions, and grant compliance with the Oregon Department of Emergency Management Hazard Mitigation Assistance Grant Program. The anticipated project duration is 180 days and the estimated base bid ranges from $3.7 M to $4.3 M with an additive alternate of $0.85 M to $0.99 M. • Construct sand trench and berm using owner‑supplied sand. • Replace four gatewell structures, associated piping, and valves. • Import and place ~21,000 yd³ of earthen fill to raise the levee. • Install ~500 ft of 36‑in HDPE pipe and related infrastructure. • Optional additive work for 16th Avenue Pump Station improvements.