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Scientific Investigations Report 2010–5153

Thermal Effects of Dams in the Willamette River Basin, Oregon

Table 1. Willamette River basin dams included in this study.

[Storage is the reservoir volume at full pool elevation. USACE, U.S. Army Corps of Engineers; PGE, Portland General Electric; ft, feet; na, not available; –, none]

Dam name Location Owner Year
completed
Height
(ft)
Storage
(acre-ft)
Upstream
dams
Big Cliff Dam North Santiam River USACE 1953 191 6,450 Detroit
Blue River Dam Blue River USACE 1969 270 89,500
Cottage Grove Dam Coast Fork Willamette River USACE 1942 95 32,900
Cougar Dam South Fork McKenzie River USACE 1963 452 219,000
Detroit Dam North Santiam River USACE 1953 463 455,100
Dexter Dam Middle Fork Willamette River USACE 1954 93 na Lookout Point, Hills Creek
Dorena Dam Row River USACE 1949 145 77,600
Fall Creek Dam Fall Creek USACE 1966 180 125,000
Fern Ridge Dam Long Tom River USACE 1941 44 116,800
Foster Dam South Santiam River USACE 1968 126 60,700 Green Peter
Green Peter Dam Middle Santiam River USACE 1968 327 428,100
Hills Creek Dam Middle Fork Willamette River USACE 1961 304 355,500
Lookout Point Dam Middle Fork Willamette River USACE 1954 276 455,800 Hills Creek
River Mill Dam Clackamas River PGE 1911 101 na several

First posted August 17, 2010

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For additional information contact:
Director, Oregon Water Science Center
U.S. Geological Survey
2130 SW 5th Ave.
Portland, Oregon 97201
http://or.water.usgs.gov

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