Streeter Reservoir Report
Nearby: Dead Rabbit Deception
Last Updated: December 8, 2025
Streeter, located in Johnson, Wyoming, is a privately owned earth dam completed in 1951 for irrigation purposes on Little Willow Creek.
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Summary
Standing at 32 feet in height with a storage capacity of 536 acre-feet, the dam is regulated and inspected by the Wyoming State Engineer's Office. With a fair condition assessment and low hazard potential, Streeter is a vital structure for water resource management in the region.
Situated in a picturesque setting, Streeter spans 700 feet in length and has a hydraulic height of 25 feet. The dam's stone core and soil foundation contribute to its stability, while a spillway width of 60 feet ensures controlled water release. Although the drainage area is minimal, the dam's surface area of 36 acres provides essential irrigation for the surrounding area, showcasing the importance of this structure in sustaining agriculture in the region.
Managed by a private owner, Streeter plays a crucial role in supporting the local community's agricultural needs. With regular inspections and a designated emergency action plan, the dam ensures the safety and security of residents while maintaining a reliable water source for irrigation. As climate enthusiasts, understanding and appreciating the significance of structures like Streeter is essential in safeguarding water resources amidst changing environmental conditions.
Year Completed |
1951 |
Dam Length |
700 |
Dam Height |
32 |
River Or Stream |
LITTLE WILLOW CREEK |
Primary Dam Type |
Earth |
Surface Area |
36 |
Hydraulic Height |
25 |
Nid Storage |
536 |
Structural Height |
32 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
32 |
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.
Streeter
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