Piedmont Reservoir Report
Nearby: Guild 2nd Enl. Guild & Dean
Last Updated: December 5, 2025
Piedmont is a private irrigation dam located in Uinta, Wyoming, along the Big Muddy Creek.
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Summary
Built in 1902, this earth dam stands at 34 feet tall and stretches 549 feet in length, providing storage capacity of 840 acre-feet for irrigation purposes. Despite its age, Piedmont has a low hazard potential and is currently rated in poor condition, with the last inspection conducted in September 2019.
The dam features an uncontrolled spillway with a width of 30 feet and outlet gates that include uncontrolled and valve mechanisms. While the risk assessment categorizes Piedmont as having a moderate risk level, it does not have an Emergency Action Plan (EAP) in place or updated inundation maps. The surrounding area is sparsely populated, helping to mitigate the potential impact of any dam failure. Overall, Piedmont serves as a critical water resource for agriculture in the region, but ongoing maintenance and monitoring are necessary to ensure its continued safety and functionality.
Year Completed |
1902 |
Dam Length |
549 |
Dam Height |
28 |
River Or Stream |
BIG MUDDY CK |
Primary Dam Type |
Earth |
Surface Area |
55 |
Hydraulic Height |
23 |
Nid Storage |
840 |
Structural Height |
34 |
Outlet Gates |
Uncontrolled, Valve |
Hazard Potential |
Low |
Foundations |
Soil |
Nid Height |
34 |
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.
Piedmont
Meeks Cabin Reservoir