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Clearwater 1 P-1927


General information

Waterway  North Umpqua River
Current status   Active license 
Type of facility Conventional Hydro
Mode of hydropower generation Peaking
Type of permit FERC, FERC License

FERC information

FERC docket # P-1927
FERC project name North Umpqua
Other projects with this FERC number
Permit issued 11/13/03
Permit expiration 10/27/38

Ownership and operation

Owner PacifiCorp
Owner type Investor-Owned Utility
Transmission or distribution system owner PacifiCorp

Power and generating capacity

Number of units 1
Total capacity from hydraulic turbine-generator units within each plant 15.0 MW

The North Umpqua Project was constructed between 1947 and 1956. It consists of a series of dams and canals that divert water to the eight developments, each of which has a powerhouse and a dam. The Clearwater No. 1 Development is the uppermost development on the Clearwater River, which has its confluence with the North Umpqua River near Toketee dam. The development includes a 17-foot-high diversion dam located about 8.1 miles upstream of Toketee Lake and impounding 11.8-acre Stump Lake, 13,037 miles of canal and flumes extending from Stump Lake dam to the forebay, a 16.3-acre forebay with total maximum storage capacity of 120.8 acre-feet, a 4,863-foot-long penstock, and a powerhouse with a single turbine-generator having a rated capacity of 15,000 kW. The powerhouse discharges directly into the Clearwater No. 2 diversion.

Clearwater Dam

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