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Return to Previous PageBonneville Dam’s Power Generators All On

Skamania Co. Pioneer

For the first time since 1994, all 20 hydropower-generating units at Bonneville Lock and Dam are up and running. Ten of the units are located in the lock and dam project’s first powerhouse on the Oregon side of the Columbia River, the remaining 10 are located in the second powerhouse on the Washington shore.

Unit 10 in the first powerhouse, which was out of service for a stator replacement, came back online April 28. Unit 10 furnishes attraction flow for the entrance to the adult fish ladder and to the juvenile outfalls area, keeping the flows high enough to keep predators away, according to Debby Chenoweth, operations manager for the dam.

When all units at Bonneville Dam are operating, they have the capability of producing 1,076,600 kilowatts of hydroelectricity–enough energy to power 250,000 homes.

In late July rehabilitation of Unit 3 in the first powerhouse will begin.

Skamania Co. Pioneer
Stevenson, WA
May 10, 2000

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