Rush Creek Reservoir Report
Nearby: Horse Creek Corral
Last Updated: December 5, 2025
Rush Creek, located in Wyoming, is a private irrigation dam with a height of 49 feet and a hydraulic height of 40 feet.
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Summary
Completed in 1973, it serves the primary purpose of irrigation and has a storage capacity of 339 acre-feet. The dam spans 775 feet in length and sits on a foundation of soil, with a spillway width of 100 feet.
Despite its low hazard potential, Rush Creek is deemed to be in poor condition, with a risk assessment rating of moderate. The dam's last inspection in May 2021 revealed its poor condition, prompting the need for potential risk management measures. The dam is regulated and inspected by the Wyoming State Engineer's Office, ensuring compliance with state regulations and permitting requirements.
Water resource and climate enthusiasts monitoring Rush Creek should be aware of its location in Park County, Wyoming, near the city of Greybull. With a drainage area of 8.1 square miles and a maximum discharge of 1456 cubic feet per second, Rush Creek plays a vital role in local irrigation practices. As efforts to maintain and improve the dam's condition continue, stakeholders should stay informed about any updates or changes to ensure the safety and sustainability of Rush Creek for the future.
Year Completed |
1973 |
Dam Length |
775 |
Dam Height |
49 |
River Or Stream |
HORSE CREEK |
Primary Dam Type |
Earth |
Surface Area |
18 |
Hydraulic Height |
40 |
Drainage Area |
8.1 |
Nid Storage |
339 |
Structural Height |
49 |
Outlet Gates |
Slide (sluice gate) - 0 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
49 |
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.
Rush Creek