Fish Creek P-1927

General information

Waterway  Fish Creek Canal
Current status   Active license 
Type of facility Conventional Hydro
Mode of hydropower generation Peaking
Type of permit 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
Year first online (conventional hydro) 1952
Transmission or distribution system owner PacifiCorp

Power and generating capacity

Number of units 1
Total capacity from hydraulic turbine-generator units within each plant 11.0 MW
Average annual net hydropower generation 36,625.3 MWH

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 Fish Creek Development consists of a 6.5-foot-high diversion dam located on Fish Creek approximately 6 miles upstream of the creek’s confluence with the North Umpqua, a 3-acre reservoir, 25,662 feet of canal and flumes extending from the diversion dam to a 9.3-acre-foot forebay with a maximum total storage capacity of 110.3 acre-feet, a 2,358-foot-long penstock, and a powerhouse with a single turbine-generator set having a rated capacity of 11,000 kW. The powerhouse is located on the North Umpqua between the Toketee powerhouse and Slide Creek diversion dam. The reservoir impounded by the diversion dam has no active storage, but the forebay has active storage and is used to reregulate water from off-peak to peak demand periods. A fish ladder and a sluiceway are incorporated into the diversion dam.

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