Yale Dam

Yale Dam
Yale Dam
	Yale Dam, north side
Location	Clark / Cowlitz counties, Washington, USA
Coordinates	45°57′51″N 122°19′57″W
Status	Operational
Opening date	1953
Designed by	Ebasco Services Inc.
Operator(s)	PacifiCorp[1]
Dam and spillways
Type of dam	Embankment dam
Impounds	Lewis River
Height	323 feet (98.5 m)
Length	1,500 feet (457 m)[2]
Elevation at crest	460 feet (140 m)
Spillway type	Gated concrete ogee/chute
Spillway length	195 feet (59.4 m)
Reservoir
Creates	Yale Lake
Total capacity	402,000 acre-feet (0.496 km3)
Catchment area	600 square miles (1,550 km2)
Power Station
Hydraulic head	240 square miles (622 km2)
Turbines	2
Installed capacity	134,000 kW[3]

Yale Dam is a 323-foot high earth-type hydroelectric dam on the Lewis River, in the U.S. state of Washington,[4] owned by PacifiCorp.[2] It is located on the border between Cowlitz County and Clark County. Its reservoir is called Yale Lake. The dam's power plant capacity is 134 megawatts.[3]

In January 2020, PacifiCorp, the dam owner, lowered the reservoir level 10 feet below normal operating level in order to reduce the probability of an accidental release due to an earthquake.[5]

References

"Dam Name: Yale". npdp.stanford.edu. Archived from the original on 16 July 2011.
"Dam Name: Yale". npdp.stanford.edu. Archived from the original on 10 May 2022. Retrieved 10 May 2022.
"Yale Hydroelectric Project, FERC Project No. P-2071, Application for License Amendment, Volume I of V" (PDF). pacificorp.com. July 2020. Archived (PDF) from the original on 21 January 2022. Retrieved 10 May 2022.
Johnson, Noel. "Yale Dam - Recreation". lewisriver.com. Archived from the original on 1 August 2010. Retrieved 5 July 2010.
Fairbanks, Katie (16 Jan 2020). "PacifiCorp to lower Yale Reservoir because of earthquake risk". The Columbian. Archived from the original on 17 January 2020. Retrieved 10 May 2022.

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[npdp_20110716_yaledam-1] "Dam Name: Yale". npdp.stanford.edu. Archived from the original on 16 July 2011.

[npdp_20220510_yaledam-2] "Dam Name: Yale". npdp.stanford.edu. Archived from the original on 10 May 2022. Retrieved 10 May 2022.

[pc_202007_licenseamendapp-3] "Yale Hydroelectric Project, FERC Project No. P-2071, Application for License Amendment, Volume I of V" (PDF). pacificorp.com. July 2020. Archived (PDF) from the original on 21 January 2022. Retrieved 10 May 2022.

[lr_2010_yaledam-4] Johnson, Noel. "Yale Dam - Recreation". lewisriver.com. Archived from the original on 1 August 2010. Retrieved 5 July 2010.

[tc_20200116_reservoirlowered-5] Fairbanks, Katie (16 Jan 2020). "PacifiCorp to lower Yale Reservoir because of earthquake risk". The Columbian. Archived from the original on 17 January 2020. Retrieved 10 May 2022.