Spring Lake Reservoir Report

Nearby: Wills Summit

Last Updated: December 5, 2025

Spring Lake is a privately owned reservoir located in Carbon County, Wyoming, near the city of Saratoga.


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Summary

It was completed in 1970 and serves as a water resource for the surrounding area, with a normal storage capacity of 256 acre-feet and a maximum storage capacity of 416 acre-feet. The dam is primarily earth-filled with a height of 21 feet and a hydraulic height of 16 feet, providing flood control and irrigation benefits to the region.

The reservoir is fed by Spring Creek and covers a surface area of 29 acres. Despite its relatively low hazard potential and fair condition assessment, Spring Lake is regulated by the Wyoming State Engineer's Office, with regular inspections and enforcement measures in place to ensure its safety and integrity. The spillway is uncontrolled with a width of 30 feet, and the dam has an outlet gate that is also uncontrolled.

Overall, Spring Lake plays a crucial role in water management and climate resilience in the region, with a moderate risk assessment rating. Its presence contributes to the sustainable use of water resources and serves as a valuable asset for the community of Saratoga and beyond.

Year Completed

1970

Dam Length

500

Dam Height

21

River Or Stream

SPRING CREEK

Primary Dam Type

Earth

Surface Area

29

Hydraulic Height

16

Nid Storage

416

Structural Height

21

Outlet Gates

Uncontrolled - 0

Hazard Potential

Low

Foundations

Soil

Nid Height

21
       
Seasonal Comparison

Weather Forecast

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.