Fgd Effluent #4 Reservoir Report
Last Updated: December 13, 2025
Fgd Effluent #4 is a private dam located in Lincoln, Wyoming, near HWY 189 and Dry Gulch.
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Summary
Designed by Jason Stratton and completed in 2010, this earth dam stands at a height of 62 feet and has a hydraulic height of 57 feet. It serves primarily for tailings storage, with a storage capacity of 1596 acre-feet.
Despite being classified as having a significant hazard potential, Fgd Effluent #4 is currently in fair condition, as assessed during the last inspection in August 2021. The dam has a surface area of 37 acres and a drainage area of 0 acres, with no spillway type specified. There are no associated structures with this dam, and it has no outlet gates.
With its location in a dry climate region prone to water scarcity and changing weather patterns, Fgd Effluent #4 is an important structure for managing water resources in the area. Given its critical purpose and potential risks, continued monitoring and maintenance will be essential to ensure the safety and efficiency of this dam in the face of evolving climate conditions.
Year Completed |
2010 |
Dam Length |
55500 |
Dam Height |
62 |
River Or Stream |
DRY GULCH |
Primary Dam Type |
Earth |
Surface Area |
37 |
Hydraulic Height |
57 |
Nid Storage |
1596 |
Structural Height |
63 |
Outlet Gates |
None |
Hazard Potential |
Significant |
Foundations |
Soil |
Nid Height |
63 |
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.
Fgd Effluent #4