Columbia River Bar

E460946

The Columbia River Bar is a notoriously dangerous sandbar and shipping passage at the mouth of the Columbia River, often called the "Graveyard of the Pacific" due to its treacherous waves and frequent shipwrecks.

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Observed surface forms (1)

Surface form Occurrences
Columbia River Bar maritime history 1

Statements (47)

Predicate Object
instanceOf hazardous waterway
sandbar
shipping passage
country United States of America
surface form: United States
hasCause interaction of river outflow and ocean swells
shifting sediment at river mouth
winter storms in the North Pacific
hasFacility Coast Guard Station Cape Disappointment NERFINISHED
hasHistory long record of shipwrecks
numerous 19th-century maritime disasters
ongoing dredging to maintain shipping channel
hasRisk capsizing
loss of life
ship grounding
hazardType bar crossing
maritime navigation hazard
knownFor dangerous crossing for ships
frequent shipwrecks
rapidly changing sea conditions
shallow shifting sandbars
strong currents
treacherous waves
locatedIn Pacific Ocean
border between Oregon and Washington
mouth of the Columbia River
monitoredBy United States Coast Guard NERFINISHED
navigationAid buoy system
lighthouses near the river mouth
near Astoria, Oregon NERFINISHED
Cape Disappointment NERFINISHED
Clatsop Spit NERFINISHED
Ilwaco, Washington NERFINISHED
nickname Graveyard of the Pacific NERFINISHED
partOf Columbia River NERFINISHED
Pacific Northwest NERFINISHED
region Pacific Northwest coast of the United States
regulatedBy United States Coast Guard navigation rules
requires specialized bar pilots for large vessels
safetyMeasure bar closure during extreme conditions
mandatory pilotage for many large vessels
servedBy Columbia River Bar Pilots NERFINISHED
usedBy commercial shipping
fishing vessels
recreational boats
weatherInfluence North Pacific storms
river discharge levels
tidal cycles

Referenced by (3)

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

Columbia River estuary hasFeature Columbia River Bar
Cape Disappointment isNear Columbia River Bar
Astoria waterfront associatedWith Columbia River Bar
this entity surface form: Columbia River Bar maritime history