Spring Draw Reservoir Report
Last Updated: December 7, 2025
Spring Draw, located in Weston, Wyoming, is a privately owned earth dam completed in 1959 for fire protection, stock, and small fish pond purposes.
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Summary
The dam stands at a height of 25 feet with a hydraulic height of 20 feet, and a length of 310 feet. It has a storage capacity of 78 acre-feet, with a normal storage of 54 acre-feet and a surface area of 5 acres. The dam is regulated by the State of Wyoming and undergoes inspections every 5 years, with a low hazard potential and poor condition assessment as of the last inspection in August 2019.
Although Spring Draw has a moderate risk level, with a risk assessment rating of 3, it currently lacks an Emergency Action Plan (EAP) and updated emergency contacts. The dam's spillway type is uncontrolled with a width of 50 feet, and it is equipped with one valve outlet gate. The dam is situated in a region represented by Liz Cheney (R) in Congressional District 00, Wyoming, and falls within the jurisdiction of the State of Wyoming Regulatory Agency. Despite its poor condition assessment, Spring Draw continues to serve its primary purposes effectively, contributing to the local fire protection and irrigation needs in the area.
Water resource and climate enthusiasts interested in Spring Draw can appreciate its historical significance as a critical infrastructure for local water management in Edgemont S D, Wyoming. The dam's strategic location on the Spring Draw river offers valuable insights into the challenges and opportunities associated with maintaining aging earth dams for multiple uses such as fire protection and stock watering. As efforts to address climate change intensify, understanding the condition and risk assessment of structures like Spring Draw becomes essential for sustainable water resource management and emergency preparedness in the region.
Year Completed |
1959 |
Dam Length |
310 |
Dam Height |
25 |
River Or Stream |
SPRING DRAW |
Primary Dam Type |
Earth |
Surface Area |
5 |
Hydraulic Height |
20 |
Nid Storage |
78 |
Structural Height |
25 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
25 |
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.
Spring Draw