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Canyon Ferry Dam

Montana — Lewis and Clark County — MISSOURI RIVER

Location

StateMontana
CountyLewis and Clark
RiverMISSOURI RIVER
Coordinates46.64860, -111.72810

Physical Characteristics

NID Height225 ft
Dam Height225 ft
Dam Length1,000 ft
NID Storage2,051,000 acre-ft
Max Storage2,051,000 acre-ft
Surface Area34,435 acres

Safety Classification

Hazard PotentialHigh
Condition AssessmentNot Available
EAP StatusYes
Last InspectionSeptember 8, 2020
Inspection Frequency4

Dam Information

Year Completed1954
Primary PurposeFlood Risk Reduction
Dam TypeConcrete
Owner TypeFederal
OwnerBUREAU OF RECLAMATION
Other NameCanyon Ferry Lake

Location Map

About This Dam Record

Dam safety data is maintained by the Army Corps of Engineers National Inventory of Dams (NID). High-hazard dams are those where failure could cause loss of life or major property damage downstream.

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