Whistle Creek Dam Reservoir Report
Nearby: Peter Widener Pond Willwood Diversion
Last Updated: December 5, 2025
Whistle Creek Dam, located in Cody, Wyoming, is a federal-owned structure managed by the Bureau of Land Management.
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Summary
Constructed in 2003, this gravity-type dam stands at a height of 28 feet with a hydraulic height of 21 feet. With a storage capacity of 34.4 acre-feet and a surface area of 14.1 acres, the dam serves a primary purpose of "Other." The dam is primarily made of buttress and stone core types, with an unknown foundation type.
Despite its low hazard potential, Whistle Creek Dam has a solid record of safety and maintenance, with inspections conducted every 5 years. The dam has not been rated for its condition and has no emergency action plan in place. Overall, the dam stands as a testament to effective water resource management in the state of Wyoming, providing essential services to the local community while maintaining a high level of safety and security. For water resource and climate enthusiasts, Whistle Creek Dam represents a fascinating case study in dam construction and management.
Year Completed |
2003 |
Dam Length |
293 |
Primary Dam Type |
Gravity |
Surface Area |
14.1 |
Hydraulic Height |
21 |
Nid Storage |
34.4 |
Structural Height |
28 |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
28 |
Seasonal Comparison
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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.
Whistle Creek Dam