O’Sullivan Dam

E322932

O’Sullivan Dam is a major earth-fill dam in central Washington State that forms Potholes Reservoir and plays a key role in irrigation and water management for the Columbia Basin Project.

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All labels observed (1)

Label Occurrences
O’Sullivan Dam canonical 2

Statements (46)

Predicate Object
instanceOf earth-fill dam
embankment dam
associatedProtectedArea Potholes State Park
basinCountry United States of America
surface form: United States
constructionBegan 1947
constructionMaterial earth
rockfill
country United States of America
surface form: United States
designedFor large-scale agricultural development of Columbia Basin
engineeringProject Columbia Basin Project
surface form: Columbia Basin Project main works
feedsIrrigationDistrict Columbia Basin Project
surface form: Columbia Basin irrigation areas
formsReservoir Potholes Reservoir
function regulates flows to downstream irrigation canals
stores excess Columbia Basin Project water
hasRecreationalActivities boating on Potholes Reservoir
fishing on Potholes Reservoir
waterfowl hunting in surrounding area
hasSpillway yes
height about 200 feet
impact supports irrigation for hundreds of thousands of acres of farmland
length about 19,000 feet
locatedIn Washington
surface form: Washington State

central Washington
locatedInAdministrativeEntity Grant County, Washington NERFINISHED
locatedOnWaterbody Potholes Reservoir
managingAgency Bureau of Reclamation
surface form: United States Bureau of Reclamation
namedAfter local landowner or early settler with surname O’Sullivan
nearbyCity Moses Lake, Washington
Othello, Washington
opened 1949
owner Bureau of Reclamation
surface form: United States Bureau of Reclamation
partOf Columbia Basin Project
purpose flood control
irrigation
recreation support
water management
regionServed Columbia Basin Project
surface form: Columbia Basin Project irrigation area
reservoirCapacity approximately 1,000,000 acre-feet
reservoirName Potholes Reservoir
reservoirUse irrigation water storage
recreation
riverBasin Columbia River Basin
spillwayType uncontrolled overflow spillway
status operational
volume on the order of tens of millions of cubic yards of earthfill
waterSource Columbia Basin Project
surface form: Columbia River via Columbia Basin Project canals

Referenced by (2)

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

Columbia Basin Project hasComponent O’Sullivan Dam
Potholes Reservoir createdBy O’Sullivan Dam