Merwin Dam

E516215

Merwin Dam is a hydroelectric dam on Washington State’s Lewis River that forms Lake Merwin and generates power for the region.

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Statements (48)

Predicate Object
instanceOf gravity dam
hydroelectric dam
basinCountry United States of America
surface form: United States
commissioningDate 1931
constructionBegan 1929
constructionMaterial concrete
country United States of America
surface form: United States
county Clark County, Washington NERFINISHED
Cowlitz County, Washington NERFINISHED
createsWaterBody Lake Merwin NERFINISHED
energySource hydropower
environmentalContext Lewis River watershed NERFINISHED
FERCProject Lewis River Project NERFINISHED
fishPassageMitigation Lewis River basin fish programs
formsReservoir Lake Merwin NERFINISHED
gridConnection regional electric grid of the Pacific Northwest
hasRecreationArea Lake Merwin Campers Hideaway vicinity
hasSpillway yes
impounds Lewis River NERFINISHED
installedCapacity about 136 MW
locatedIn Washington
surface form: Washington State
locatedInTimeZone Pacific Time Zone
locatedOnRiver Lewis River NERFINISHED
namedAfter Lake Merwin NERFINISHED
nearCity Ariel, Washington NERFINISHED
Woodland, Washington NERFINISHED
numberOfTurbines 3
openingDate 1931
operator PacifiCorp NERFINISHED
owner PacifiCorp NERFINISHED
partOf Lewis River hydroelectric project NERFINISHED
powerPlantType conventional hydroelectric power plant
providesService regional electricity supply
purpose flood control
power generation
recreation
regionServed Pacific Northwest
southwestern Washington
regulatoryAuthority Federal Energy Regulatory Commission NERFINISHED
reservoirName Lake Merwin NERFINISHED
reservoirShorelineUse camping
day-use recreation
reservoirUse fishing
hydroelectric power generation
recreational boating
riverSystem Columbia River basin NERFINISHED
state Washington
watercourseDammed Lewis River NERFINISHED

Referenced by (2)

Full triples — surface form annotated when it differs from this entity's canonical label.

Lewis River hasDam Merwin Dam