Summary
Built in 1961, this earth dam stands at a height of 35 feet and has a storage capacity of 566 acre-feet, primarily used for irrigation purposes. Despite its low hazard potential, Winchester is currently assessed to be in poor condition, with its last inspection in August 2019 revealing the need for maintenance and repairs.
The dam's spillway, of uncontrolled type with a width of 50 feet, poses a moderate risk according to the latest assessment. While Winchester has state permitting, inspection, and enforcement in place, its condition raises concerns for potential risks in the future. With Liz Cheney as the Congressional Representative overseeing this area, it is essential for water resource and climate enthusiasts to monitor and advocate for the maintenance and improvement of Winchester to ensure the safety and sustainability of its operations.
As a key structure for irrigation in the region, Winchester plays a crucial role in water resource management. Given its location in a state known for its natural beauty and ecological diversity, the conservation and upkeep of Winchester are vital for preserving the delicate balance of the local ecosystem. By staying informed and actively engaging in discussions surrounding Winchester's condition and maintenance, enthusiasts can contribute to the long-term resilience and sustainability of water resources in Wyoming.
Year Completed |
1961 |
Dam Length |
1070 |
Dam Height |
35 |
River Or Stream |
GASSETT DRAW |
Primary Dam Type |
Earth |
Surface Area |
39 |
Hydraulic Height |
30 |
Nid Storage |
566 |
Structural Height |
35 |
Outlet Gates |
Valve - 1 |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
35 |
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.
Winchester