Reed Reservoir Report
Nearby: Clifford F. Graham Tipperary
Last Updated: December 5, 2025
Reed is a privately owned irrigation dam located in Granger, Wyoming, along the Sage Creek.
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Summary
Built in 1960, the earth dam stands at a height of 39 feet and has a hydraulic height of 34 feet. With a storage capacity of 1538 acre-feet, Reed serves as a vital water resource for the surrounding area, especially for agricultural purposes. The dam has a spillway width of 50 feet and is classified as having a low hazard potential with a fair condition assessment.
Despite being privately owned, Reed is regulated and permitted by the State of Wyoming, with inspections and enforcement also carried out by the state regulatory agency. The dam is equipped with a single valve outlet gate and undergoes inspections every five years to ensure its structural integrity and safety. The risk assessment of Reed is moderate, indicating a level 3 risk, though specific risk management measures are not detailed in the available data. Overall, Reed plays a crucial role in water management in the area, highlighting the intersection of water resources, infrastructure, and climate considerations in the region.
Year Completed |
1960 |
Dam Length |
3150 |
Dam Height |
39 |
River Or Stream |
SAGE CREEK |
Primary Dam Type |
Earth |
Surface Area |
104 |
Hydraulic Height |
34 |
Nid Storage |
1538 |
Structural Height |
39 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
39 |
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.
Reed