Detention Pine Ridge No. 1 Reservoir Report
Nearby: Detention Case Bier No. 1 Skinner
Last Updated: December 5, 2025
Detention Pine Ridge No.
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Summary
1, located in Ft. Laramie, Wyoming, is a vital flood risk reduction structure designed by the USDA SCS and completed in 1958. This earth dam stands at an impressive 53 feet in height and spans 2700 feet in length, with a storage capacity of 3444 acre-feet. With a controlled spillway and satisfactory condition assessment, this low hazard potential dam plays a crucial role in protecting the surrounding area from flooding, particularly along the Eaton Dr. river.
Managed by the local government and regulated by the State of Wyoming, Detention Pine Ridge No. 1 undergoes regular inspections for its operation and enforcement. Its very high risk assessment rating underscores its importance in mitigating potential flood risks in the region, with a notable maximum discharge capability of 13600 cubic feet per second. The dam's stone core and soil foundation contribute to its structural integrity, ensuring its continued effectiveness in safeguarding the community against natural disasters.
For water resource and climate enthusiasts, Detention Pine Ridge No. 1 serves as a remarkable example of engineering excellence in flood risk reduction. As part of the critical infrastructure in Goshen County, Wyoming, this earth dam not only provides essential protection from flooding but also showcases the collaborative efforts between local and state agencies in ensuring the safety and resilience of the region. With its impressive design and operational efficiency, Detention Pine Ridge No. 1 stands as a testament to effective water resource management and climate adaptation strategies in the face of evolving environmental challenges.
Year Completed |
1958 |
Dam Length |
2700 |
Dam Height |
53 |
River Or Stream |
EATON DR |
Primary Dam Type |
Earth |
Surface Area |
145 |
Hydraulic Height |
15 |
Drainage Area |
20.4 |
Nid Storage |
3444 |
Structural Height |
56 |
Outlet Gates |
Other Controlled - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
56 |
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.
Detention Pine Ridge No. 1