G. W. Reservoir Report
Nearby: Thomas No. 2 Warren Afb, Bnsf Pond
Last Updated: December 5, 2025
Located in Pine Bluffs, Wyoming, the G.
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Summary
W. dam stands as a crucial structure for flood risk reduction along Spring Creek. Constructed in 1969, this earth dam spans 790 feet in length and reaches a height of 30 feet, with a maximum storage capacity of 369 acre-feet. Despite its age, the dam is in fair condition and has a low hazard potential, making it a vital asset for the surrounding area.
Managed by a private owner, G. W. is regulated and permitted by the State of Wyoming, with inspections and enforcement in place to ensure its structural integrity. The dam features an uncontrolled spillway with a width of 52 feet and other controlled outlet gates. Its primary purpose remains flood risk reduction, serving the community and protecting against potential water-related disasters.
With a moderate risk assessment rating, G. W. continues to play a key role in managing water resources in Laramie County. Its strategic location, design by Edmond R Bates, and state-regulated operations make it a noteworthy structure for water resource and climate enthusiasts interested in flood prevention and mitigation efforts in the region.
Year Completed |
1969 |
Dam Length |
790 |
Dam Height |
30 |
River Or Stream |
SPRING CREEK |
Primary Dam Type |
Earth |
Surface Area |
26 |
Hydraulic Height |
25 |
Drainage Area |
20 |
Nid Storage |
369 |
Structural Height |
30 |
Outlet Gates |
Other Controlled - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
30 |
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.
G. W.