Unit 3 Fgd Evaporation Pond 1 Reservoir Report

Last Updated: December 15, 2025

Unit 3 Fgd Evaporation Pond 1, also known as Naughton Se Plant Fgd Evap Pnd, is a public utility facility located in Lincoln, Wyoming.


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Summary

This evaporation pond plays a crucial role in flood risk reduction along Shank Creek, with a primary dam type of Earth and a height of 40 feet. Completed in 1990, the pond has a storage capacity of 1164 acre-feet, making it essential for managing water resources in the area. The structural height of the dam is 40 feet, with a hydraulic height of 35 feet, ensuring efficient water storage and management.

With a fair condition assessment and low hazard potential, Unit 3 Fgd Evaporation Pond 1 is a vital infrastructure for the region's water resource management. The pond's inspection frequency is set at every 5 years, with the last inspection conducted in June 2019. Despite the high risk assessment rating of 2, the pond is well-equipped with a slide gate outlet system for efficient water release. The facility's location on HWY. 189 near the city of 28 further emphasizes its importance in flood risk reduction efforts in the area.

In conclusion, Unit 3 Fgd Evaporation Pond 1 stands as a testament to the effective water resource management practices in Wyoming. With its strategic location, ample storage capacity, and reliable infrastructure, this evaporation pond plays a crucial role in safeguarding against flood risks and ensuring sustainable water management along Shank Creek. As climate change continues to impact water resources, facilities like Unit 3 Fgd Evaporation Pond 1 remain essential for mitigating risks and maintaining the integrity of water systems in the region.

Year Completed

1990

Dam Length

5348

Dam Height

40

River Or Stream

SHANKS CREEK

Primary Dam Type

Earth

Surface Area

40

Hydraulic Height

35

Nid Storage

1164

Structural Height

40

Outlet Gates

Slide (sluice gate) - 0

Hazard Potential

Low

Foundations

Soil

Nid Height

40
       
Seasonal Comparison

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Dam Data Reference

Condition Assessment

Satisfactory
No 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

High
Dams 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.