Chief Joseph Dam - Hydroelectric Project Information
General Information
- Dam:
- Chief Joseph Dam. Columbia River. River Mile 545.1
- Constructed:
- 1961 (units 1-16), 1979 (units 17-27)
- Owner:
- U.S. Army Corps of Engineers, Seattle District
- Full Pool:
- 956.0 feet
- Minimum Pool:
- 930.0 feet
- Powerhouse Capacity:
- Nameplate capacity: 16 @ 64 MW, 11 @ 95 MW, 2069 MW total
- Overload capacity: 16 @ 88.3 MW, 11 @ 109.3 MW, 2614 MW total
- Station service units: 2 @ 3 MW, 6 MW total
- Hydraulic capacity: 219 kcfs
- Spillway:
- 980 feet, 19 gates
Additional Information
Chief Joseph Dam web page. Contact U.S. Army Corps of Engineers, Seattle District for all additional information.