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Garrison Dam - Williston Levee

North Dakota — Williams County — MISSOURI RIVER

Location

StateNorth Dakota
CountyWilliams
RiverMISSOURI RIVER
Coordinates48.12928, -103.63576

Physical Characteristics

NID Height28 ft
Dam Height—
Dam Length44,500 ft
NID Storage26,000,000 acre-ft
Max Storage26,000,000 acre-ft
Surface Area133,000 acres

Safety Classification

Hazard PotentialHigh
Condition AssessmentNot Available
EAP StatusYes
Last InspectionJune 15, 2018
Inspection Frequency5

Dam Information

Year Completed1953
Primary PurposeFlood Risk Reduction
Dam TypeEarth
Owner TypeFederal
OwnerUSACE - Omaha District
Other NameLake Sakakawea

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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