Utter Reservoir Report
Last Updated: December 5, 2025
Utter is a private Fish and Wildlife Pond located in Torrington, Wyoming, along the Grays Run river.
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Summary
Built in 1972, this Earth dam stands at 30 feet high and has a storage capacity of 131 acre-feet. The dam's primary purpose is to support fish and wildlife in the area, with a spillway width of 42 feet to manage water flow during peak periods.
Despite its low hazard potential and fair condition assessment, Utter is subject to regular inspections every 5 years to ensure its structural integrity. The dam is equipped with a single valve outlet gate and has a moderate risk assessment rating of 3. While there are no associated structures, Utter serves as a vital resource for the local ecosystem and demonstrates the importance of water management in sustaining natural habitats.
Managed by the SEO agency in Wyoming, Utter plays a crucial role in maintaining the ecological balance in the region. With its strategic location and design, this dam serves as a testament to the importance of responsible water resource management and the preservation of wildlife habitats in the face of changing climate conditions.
Year Completed |
1972 |
Dam Length |
1240 |
Dam Height |
30 |
River Or Stream |
GRAYS RUN |
Primary Dam Type |
Earth |
Surface Area |
9 |
Hydraulic Height |
25 |
Nid Storage |
131 |
Structural Height |
30 |
Outlet Gates |
Valve - 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.
Utter