Solid Waste Disposal Cell C Reservoir Report
Last Updated: December 14, 2025
Solid Waste Disposal Cell C, located in Jamestown, Wyoming, is a privately owned facility primarily designed for tailings storage.
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Summary
Constructed in 2011, this Earth-type dam stands at 18 feet tall and extends over a length of 3120 feet, with a storage capacity of 139 acre-feet. The dam is built on a foundation of rock and soil, with a stone core, and is regulated by the Wyoming State Environmental Office.
With a low hazard potential and fair condition assessment, Solid Waste Disposal Cell C is inspected every 5 years to ensure its safety and integrity. The dam has a drainage area of 0.03 square miles and is situated near the JR Draw river. Despite its high risk assessment ranking, the facility does not have an Emergency Action Plan in place, raising concerns about emergency preparedness and response in case of a hazardous event.
Overall, Solid Waste Disposal Cell C serves a crucial role in managing solid waste in the area, but there are potential risks associated with its operation that need to be addressed. Climate and water resource enthusiasts should monitor the facility's maintenance and emergency preparedness efforts to ensure the safety of the surrounding environment and communities.
Year Completed |
2011 |
Dam Length |
3120 |
Dam Height |
18 |
River Or Stream |
JR DRAW |
Primary Dam Type |
Earth |
Surface Area |
17.32 |
Hydraulic Height |
18 |
Drainage Area |
0.03 |
Nid Storage |
139 |
Structural Height |
18 |
Outlet Gates |
Other Controlled - 1 |
Hazard Potential |
Low |
Foundations |
Rock, Soil |
Nid Height |
18 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Green River Near Green River
|
870cfs |
Blacks Fork Near Little America
|
14cfs |
Pacific Creek Near Farson
|
3cfs |
Henrys Fork Near Manila
|
49cfs |
Green River Below Fontenelle Reservoir
|
872cfs |
Green River Near Greendale
|
847cfs |
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.
Solid Waste Disposal Cell C