Fort Peck Dam

E449298

earthfill dam hydroelectric dam

Fort Peck Dam is a massive earthfill dam in northeastern Montana that creates Fort Peck Lake and plays a key role in flood control, hydroelectric power generation, and water management in the Missouri River system.

Try in SPARQL Jump to: Surface forms Disambiguation Statements Elicitation Referenced by

All labels observed (3)

Label	Occurrences
Fort Peck Dam canonical	8
Fort Peck Dam (via Fort Peck Lake)	1
Fort Peck Project	1

How this entity was disambiguated

This entity first appeared as the object of triple T4528890 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07

Target entity: Fort Peck Dam
Context triple: [Missouri River Basin, hasMajorDam, Fort Peck Dam]

A. Buffalo Bill Dam
Buffalo Bill Dam is a historic concrete arch-gravity dam on the Shoshone River in Wyoming, once one of the tallest in the world and now a key engineering landmark and visitor attraction.
B. Gavins Point Dam
Gavins Point Dam is a major Missouri River dam near Yankton, South Dakota, known for hydroelectric power generation, flood control, and recreation on Lewis and Clark Lake.
C. Minidoka Dam
Minidoka Dam is an early 20th-century Bureau of Reclamation irrigation and hydroelectric dam on the Snake River in southern Idaho.
D. McNary Dam
McNary Dam is a large hydroelectric dam and navigation lock complex on the Columbia River in the Pacific Northwest of the United States.
E. Dworshak Dam
Dworshak Dam is a large concrete gravity dam on the North Fork Clearwater River in Idaho, primarily used for hydroelectric power generation, flood control, and recreation.
F. None of above. chosen
G. Unsure - the case is ambiguous/there is not enough information to decide.

NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07

Target entity: Fort Peck Dam
Target entity description: Fort Peck Dam is a massive earthfill dam in northeastern Montana that creates Fort Peck Lake and plays a key role in flood control, hydroelectric power generation, and water management in the Missouri River system.

A. Buffalo Bill Dam
Buffalo Bill Dam is a historic concrete arch-gravity dam on the Shoshone River in Wyoming, once one of the tallest in the world and now a key engineering landmark and visitor attraction.
B. Gavins Point Dam
Gavins Point Dam is a major Missouri River dam near Yankton, South Dakota, known for hydroelectric power generation, flood control, and recreation on Lewis and Clark Lake.
C. Minidoka Dam
Minidoka Dam is an early 20th-century Bureau of Reclamation irrigation and hydroelectric dam on the Snake River in southern Idaho.
D. McNary Dam
McNary Dam is a large hydroelectric dam and navigation lock complex on the Columbia River in the Pacific Northwest of the United States.
E. Dworshak Dam
Dworshak Dam is a large concrete gravity dam on the North Fork Clearwater River in Idaho, primarily used for hydroelectric power generation, flood control, and recreation.
F. None of above. chosen

Statements (48)

Predicate	Object
instanceOf	earthfill dam ⓘ hydroelectric dam ⓘ
authorizedBy	Rivers and Harbors Act of 1935 ⓘ linked to: Rivers and Harbors Act (United States)
constructionBeganUnder	Public Works Administration ⓘ
constructionStartDate	1933 ⓘ
country	United States ⓘ linked to: United States of America
createsReservoir	Fort Peck Lake ⓘ
crosses	Missouri River ⓘ
function	water management in the Missouri River system ⓘ
hasPowerPlant	Fort Peck Power Plant ⓘ
height	approximately 250 feet ⓘ approximately 76 meters ⓘ
length	approximately 21,000 feet ⓘ approximately 6,400 meters ⓘ
listedAs	major dam on the Missouri River ⓘ
locatedIn	Montana ⓘ northeastern Montana ⓘ
locatedInCounty	McCone County, Montana ⓘ Valley County, Montana ⓘ
locatedNear	Fort Peck, Montana ⓘ
locatedOnRiver	Missouri River ⓘ
managedBy	U.S. Army Corps of Engineers Omaha District ⓘ
material	earthfill ⓘ rolled earth and rockfill ⓘ
nearbyCity	Glasgow, Montana ⓘ
notableFor	being one of the largest earthfill dams in the world at the time of its construction ⓘ
numberOfPowerhouses	2 ⓘ
openingDate	1940 ⓘ
operator	United States Army Corps of Engineers ⓘ linked to: U.S. Army Corps of Engineers
partOf	Missouri River Mainstem System ⓘ linked to: Missouri River Basin Pick–Sloan Missouri Basin Program ⓘ linked to: Pick-Sloan Missouri Basin Program
powerPlantType	hydroelectric power plant ⓘ
provides	flood protection for downstream communities ⓘ hydroelectric power to the regional grid ⓘ navigation flow support on the Missouri River ⓘ recreational opportunities at Fort Peck Lake ⓘ storage for irrigation water ⓘ
purpose	fish and wildlife conservation ⓘ flood control ⓘ hydroelectric power generation ⓘ irrigation water supply ⓘ navigation support ⓘ recreation ⓘ
regionServed	Missouri River Basin ⓘ
reservoirCapacity	one of the largest man-made reservoirs in the United States by volume ⓘ
reservoirName	Fort Peck Lake ⓘ
reservoirSurfaceArea	over 245,000 acres ⓘ
status	operational ⓘ

How these facts were elicited

Referenced by (10)

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

Missouri River Basin → hasMajorDam → Fort Peck Dam ⓘ

Fort Peck Lake → formedByDam → Fort Peck Dam ⓘ

Fort Peck Lake → createdBy → Fort Peck Dam ⓘ

Fort Peck Lake → partOf → Fort Peck Project ⓘ

linked to: Fort Peck Dam

Fort Peck area → hasNearbyInfrastructure → Fort Peck Dam ⓘ

Missouri River reservoir system → includesDam → Fort Peck Dam ⓘ

Pick-Sloan Missouri Basin Program → includesDam → Fort Peck Dam ⓘ

Fort Peck, Montana → near → Fort Peck Dam ⓘ

Fort Peck, Montana → namedAfter → Fort Peck Dam ⓘ

Roosevelt County, Montana → hasBorderFeature → Fort Peck Dam (via Fort Peck Lake) ⓘ