Rocky Reach P-2145

General information

Waterway  Columbia River
Current status   Active 
Type of facility Conventional Hydro
Mode of hydropower generation Run-of-river/Upstream Peaking
Type of permit FERC License

FERC information

FERC docket # P-2145
FERC project name Rocky Reach
Permit issued 2/14/09
Permit expiration 1/27/52

Ownership and operation

Owner PUD No 1 of Chelan County
Owner type Publicly Owned Utility
Year first online (conventional hydro) 1961
Transmission or distribution system owner PUD No 1 of Chelan County

Power and generating capacity

Number of units 11
Total capacity from hydraulic turbine-generator units within each plant 1,299.6 MW
Average annual net hydropower generation 6,009,564.2 MWH

Rocky Reach Dam

Proceeding downstream from the Canadian-U.S. border, the first two dams on the Columbia River are Grand Coulee and Chief Joseph, both of which are federally owned and operated.

The next five dams are all under Commission license: the 774-MW Wells Project No. 2149; the Rocky Reach Project No. 2145; the 623-MW Rock Island Project No. 943; and the 1,893-MW Priest Rapids Project No. 2114, which includes two dams. These seven dams are collectively called the ‚mid-Columbia dams.

The project consists of an 8,235-acre reservoir13 and a 2,847-foot-long by 130-foot-high concrete gravity dam spanning the river.



License Issued 02-19-2009
Draft EIS Issued 08-31-2005
Settlement Agreement Submitted to FERC 03-20-2006

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News and updates

From Trout Unlimited11/28/2023

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