Wynoochee Dam

Wynoochee Dam
Front view, Wynoochee Dam, 2025
CountryUnited States
LocationMontesano, Washington
StatusOperational
Opening date1972
Designed byUnited States Army Corps of Engineers
Coordinates47°23′6″N 123°36′25″W / 47.38500°N 123.60694°W / 47.38500; -123.60694

The Wynoochee Dam is 28 miles (45 km) north of Montesano, Washington. It is owned by the city of Aberdeen, Washington, and was built by the United States Army Corps of Engineers in 1972. The dam regulates the flow of the Wynoochee River, creating Wynoochee Reservoir. The Wynoochee Lake Shore Trail, designated a National Recreation Trail in 1979, runs 16 miles (26 km) around the lake.