Fort Peck Dam, located in Montana on the Missouri River, is a critical structure managed by the US Army Corps of Engineers for flood risk reduction, hydroelectric power generation, irrigation, navigation, and recreation.
Wind
Humidity
Completed in 1940, the dam stands at a structural height of 256 feet and has a storage capacity of 19 million acre-feet. Despite its reliable flood reduction capabilities, the dam faces a high hazard potential due to the risk of overtopping during extreme flood events.
USACE continuously assesses and implements risk management measures to ensure the safety and integrity of Fort Peck Dam. Ongoing actions include regular monitoring, maintenance, and collaboration with local emergency management agencies to enhance preparedness and public awareness of flood risks. Following the 2011 flooding, additional drains and instrumentation were installed, and repairs were made to the spillway to improve resilience during future flood events.
Communities downstream of Fort Peck Dam are advised to stay informed about National Weather Service flood forecasts and have evacuation plans in place for potential flood impacts. It is crucial for residents to understand the risks associated with living near a major dam and take proactive measures to reduce individual risks during flood events. For more information on water management in the Missouri River basin and the USACE Dam Safety Program, visit their official websites.
Year Completed |
1940 |
Dam Length |
21026 |
River Or Stream |
MISSOURI RIVER |
Primary Dam Type |
Earth |
Surface Area |
93000 |
Hydraulic Height |
220 |
Drainage Area |
57725 |
Nid Storage |
19100000 |
Structural Height |
256 |
Outlet Gates |
Vertical Lift - 0 |
Hazard Potential |
High |
Foundations |
Rock, Soil |
Nid Height |
256 |
Milk River At Nashua Mt
|
233cfs |
Milk River At Tampico Mt
|
123cfs |
Nelson Creek Near Van Norman Mt
|
33cfs |
Missouri River Near Wolf Point Mt
|
5020cfs |
Beaver Creek Near Hinsdale Mt
|
1cfs |
Milk River At Juneberg Bridge Nr Saco Mt
|
162cfs |
| Location | Reservations | Toilets |
|---|---|---|
Downstream - Fort Peck Lake
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Floodplain- Lake Fort Peck
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Flat Lake- Lake Fort Peck
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West End - Lake Fort Peck
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Duck Creek - Lake Fort Peck
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