Buffalo Bill Reservoir Report
Last Updated: December 5, 2025
Buffalo Bill Dam, located in Cody, Wyoming, is a Federal-owned structure managed by the Bureau of Reclamation.
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Summary
Completed in 1905, this concrete arch dam stands at a towering height of 350 feet and serves multiple purposes, including fish and wildlife pond management, hydroelectric power generation, irrigation, recreation, and water supply for the surrounding area. Situated on the Shoshone River, the dam has a storage capacity of 646,565 acre-feet and a maximum discharge of 75,980 cubic feet per second.
The dam's spillway is controlled and measures 240 feet in width, ensuring the safe release of excess water during periods of high flow. Buffalo Bill Dam has a high hazard potential due to its size and location, but regular inspections and maintenance by the Bureau of Reclamation help to mitigate any potential risks. The dam is also equipped with outlet gates for water release, including radial tainter gates and valve gates. With its significant impact on the local ecosystem and community, Buffalo Bill Dam stands as a testament to effective water resource management in the region.
Despite its age, Buffalo Bill Dam continues to play a crucial role in water resource management in Wyoming. The dam's association with the Bureau of Reclamation ensures that it is closely monitored and maintained to meet regulatory standards. With its impressive height and capacity, Buffalo Bill Dam remains a vital piece of infrastructure for the region, providing essential services for fish and wildlife, agriculture, and recreational activities. As climate change continues to impact water resources, the sustainable management of structures like Buffalo Bill Dam becomes increasingly important for ensuring water security and environmental conservation in the future.
Year Completed |
1905 |
Dam Length |
200 |
Dam Height |
350 |
River Or Stream |
SHOSHONE RIVER |
Primary Dam Type |
Concrete |
Surface Area |
8324 |
Hydraulic Height |
265 |
Drainage Area |
1504 |
Nid Storage |
646565 |
Structural Height |
350 |
Outlet Gates |
Tainter (radial) - 2, Valve - 1 |
Hazard Potential |
High |
Foundations |
Rock |
Nid Height |
350 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Dam Data Reference
Condition Assessment
SatisfactoryNo existing or potential dam safety deficiencies are recognized. Acceptable performance is expected under all loading conditions (static, hydrologic, seismic) in accordance with the minimum applicable state or federal regulatory criteria or tolerable risk guidelines.
Fair
No existing dam safety deficiencies are recognized for normal operating conditions. Rare or extreme hydrologic and/or seismic events may result in a dam safety deficiency. Risk may be in the range to take further action. Note: Rare or extreme event is defined by the regulatory agency based on their minimum
Poor A dam safety deficiency is recognized for normal operating conditions which may realistically occur. Remedial action is necessary. POOR may also be used when uncertainties exist as to critical analysis parameters which identify a potential dam safety deficiency. Investigations and studies are necessary.
Unsatisfactory
A dam safety deficiency is recognized that requires immediate or emergency remedial action for problem resolution.
Not Rated
The dam has not been inspected, is not under state or federal jurisdiction, or has been inspected but, for whatever reason, has not been rated.
Not Available
Dams for which the condition assessment is restricted to approved government users.
Hazard Potential Classification
HighDams assigned the high hazard potential classification are those where failure or mis-operation will probably cause loss of human life.
Significant
Dams assigned the significant hazard potential classification are those dams where failure or mis-operation results in no probable loss of human life but can cause economic loss, environment damage, disruption of lifeline facilities, or impact other concerns. Significant hazard potential classification dams are often located in predominantly rural or agricultural areas but could be in areas with population and significant infrastructure.
Low
Dams assigned the low hazard potential classification are those where failure or mis-operation results in no probable loss of human life and low economic and/or environmental losses. Losses are principally limited to the owner's property.
Undetermined
Dams for which a downstream hazard potential has not been designated or is not provided.
Not Available
Dams for which the downstream hazard potential is restricted to approved government users.
Buffalo Bill
South Fork Shoshone River
North Fork Shoshone River