Hydroelectric Plants in the USA - Oregon
Big Cliff
Location: OR
Operator: U.S. Army Corps of Engineers
Configuration: 1 X 18 MW propeller
Operation: 1954
T/G supplier: Baldwin Locomotive Works, WH
Quick facts: Big Cliff Dam is on the North Santiam River and was built for re-regulation of flows from the Detroit project.

Photograph courtesy of USACE
Posted 7 Oct 2007

Bull Run
Location: OR
Operator: Portland General Electric
Configuration: 4 X 5.25 MW Francis
Operation: 1912 (ret)
T/G supplier: Platt Iron Works, WSM, GE
Quick facts: In 1999, PGE announced a plan to take the Bull Run power station and its supporting infrastructure out of service. This will involve removal of the Marmot Dam on the Sandy River, the Little Sandy Dam on the Little Sandy River, and draining Roslyn Lake. The Bull Run powerhouse will be offered for transfer to a prospective owner to preserve the building, under the terms of the National Historic Preservation Act. PGE will also donate 1,500 acres of company-owned land for preservation and recreation. Marmot Dam demolition began on 24 Jul 2007.

Photograph courtesy of Portland General Electric
Posted 30 Jun 2007

Cougar
Location: OR
Operator: U.S. Army Corps of Engineers
Configuration: 2 X 13 MW Francis
Operation: 1964
T/G supplier: Leffel, Elliott
Quick facts: At 452ft, Cougar Dam on the South Fork McKenzie River is the second highest dam in the Willamette River basin, but its construction and flow control functions had an adverse impact on downstream fish habitats. This was noted as soon as the dam was completed, but, due to litigation, it took until 1980 for the problem to be addressed. For 20yrs, the Corps and biologists from the Oregon Department of Fish and Wildlife worked to develop and install a 350ft concrete tower that takes water from the reservoir surface to maintain consistent temperatures downstream. This unique structure was completed in 2005.

Photograph courtesy of USACE
Posted 14 Oct 2007

Detroit
Location: OR
Operator: U.S. Army Corps of Engineers
Configuration: 2 X 50 MW Francis
Operation: 1953
T/G supplier: Baldwin Locomotive Works, WH
Quick facts: The dam is 463ft high. The powerhouse was damaged by fire in Jun 2007.

Photograph courtesy of USACE
Posted 7 Oct 2007

Dexter Dam
Location: OR
Operator: U.S. Army Corps of Engineers
Configuration: 1 X 15 MW Kaplan
Operation: 1955
T/G supplier: NN, GE
Quick facts: The earthfill dam has a concrete gravity non-overflow section and concrete gated spillway. Total length is 2,319ft and maximum height is 95ft.

Photograph courtesy of USACE
Posted 18 May 2002

Green Springs
Location: OR
Operator: U.S. Bureau of Reclamation
Configuration: 1 X 16 MW impulse
Operation: 1960
T/G supplier: AC, BBC
Quick facts: USBR’s Talent Division of the Rogue River Basin Project provided for construction, rehabilitation, and improvement of the facilities of three private irrigation districts. A collection canal system and five small reservoirs are used to divert water through a trans-basin system consisting of a 6,650ft tunnel and a 9,000ft penstock to the outdoor-type hydro plant.

Photograph courtesy of USBR
Posted 29 Dec 2004

John Day
Location: OR
Operator: U.S. Army Corps of Engineers
Configuration: 16 X 135 MW Kaplan
Operation: 1968-1971
T/G supplier: BLH, GE
EPC: USACE
Quick facts: John Day was the final large-scale hydroelectric development on the Lower Columbia River and is is named after the John Day River which empties into the Columbia above the damsite. The river was named for John Day from Virginia, an early explorer into the Oregon territory. The original design called for thirteen 85-MW units with provision for an additional seven machines, all to be built for $310mn. Construction began in 1958 and the project was finished at a total cost of $511mn. At completion, the John Day powerhouse was the second largest in the world. The project has a navigation lock, spillway, 1,975ft long powerhouse and fish passage facilities on both shores. Lake Umatilla, impounded by the dam, extends 76mi upstream to the foot of McNary Dam.

Photograph courtesy of USACE
Posted 29 Sep 2007

Lost Creek
Location: OR
Operator: U.S. Army Corps of Engineers
Configuration: 2 X 24.5 MW Francis
Operation: 1977
T/G supplier: Boving, AC
Quick facts: The Lost Creek Dam is a 1,882ft rockfill embankment structure.

Photograph courtesy of USACE
Posted 10 Apr 2005

McNary Dam
Location: OR
Operator: U.S. Army Corps of Engineers
Configuration: 14 X 70 MW Kaplan
Operation: 1953-1957
T/G supplier: SMS, GE
Quick facts: Project construction started in May 1947 and was completed in 1954. The 7,365ft dam rises 183ft above the streambed. It consists of a concrete structure with an earthfill embankment at the Oregon (south) abutment. Lake Wallula behind McNary Dam extends 64mi upstream on the Columbia to the DOE Hanford Site.

Photograph courtesy of USACE
Posted 2 Nov 2005

Siphon (Bend)
Location: OR
Operator: Central Oregon Irrigation District
Configuration: 2 X 3 MW Francis
Operation: 1989
T/G supplier: Kvaerner, Ideal
Quick facts: COID was established in 1918 and is a quasi municipal corporation running an irrigation system centered on two main canals diverting water from the Deschutes River. The $14mn Siphon hydro project on the Central Oregon Canal took about 10yrs to develop and was financed with revenue bonds issued by the Oregon Dept of Energy. Electricity is sold to PacifiCorp per a 35yr agreement and revenues are used to offset COID operating expenses.

Photograph courtesy of Central Oregon Irrigation District
Posted 18 Oct 2008

The Dalles
Location: OR
Operator: U.S. Army Corps of Engineers
Configuration: 14 X 78 MW, 8 X 89 MW Kaplan
Operation: 1957-1973
T/G supplier: BLD, GE
Quick facts: The Dalles Dam extends 1.5mi across the Columbia River from the Oregon shore to a navigation lock on the Washington shore. The project consists of the lock, spillway, powerhouse, and fish passage facilities. Various recreational facilities are provided along Lake Celilo, the 24mi impoundment behind the dam.

Photograph courtesy of USACE
Posted 18 Jul 2001

Abbreviations

Data: industcards, Platts UDI World Electric Power Plants Data Base

Updated 03-Jan-2016

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