Detention Case Bier No. 1 Reservoir Report
Last Updated: December 5, 2025
Detention Case Bier No.
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Summary
1, located in Goshen, Wyoming, is a vital local government-owned structure designed by USDA SCS to mitigate flood risks along the Case Bier Draw river/stream. Completed in 1958, this earth dam stands at 54 feet tall, with a hydraulic height of 11 feet and a structural height of 59 feet. With a storage capacity of 2,271 acre-feet and a surface area of 92 acres, it plays a crucial role in flood risk reduction for the surrounding area.
The dam's controlled spillway, outlet gates, and satisfactory condition assessment reflect its low hazard potential and efficient functionality. Despite its age, Detention Case Bier No. 1 continues to meet regulatory requirements, with regular inspections ensuring its structural integrity and operational readiness. Its very high risk assessment ranking underscores the importance of ongoing risk management measures to safeguard the community and environment against potential threats.
As a significant infrastructure asset in Wyoming, Detention Case Bier No. 1 serves as a testament to effective water resource management and climate resilience efforts. Its strategic location, design features, and historical significance highlight the collaborative efforts between local government agencies, designers, and regulatory bodies in safeguarding the region from flooding events. This dam stands as a symbol of proactive flood risk reduction measures and underscores the importance of continued investment in sustainable water resource infrastructure for the well-being of communities and ecosystems.
Year Completed |
1958 |
Dam Length |
2550 |
Dam Height |
54 |
River Or Stream |
CASE BIER DRAW |
Primary Dam Type |
Earth |
Surface Area |
92 |
Hydraulic Height |
11 |
Drainage Area |
14.2 |
Nid Storage |
2271 |
Structural Height |
59 |
Outlet Gates |
Other Controlled - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
59 |
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.
Area Campgrounds
| Location | Reservations | Toilets |
|---|---|---|
Grayrocks Reservoir Public Access - WGF
|
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Larson Park
|
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Guernsey State Park
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Detention Case Bier No. 1