Wetlands No. 6 Reservoir Report

Last Updated: December 5, 2025

Wetlands No.


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Summary

6, located in Big Horn, Wyoming, is a state-owned fish and wildlife pond designed by Victor E. Anderson. This offstream wetland area, completed in 1993, serves various purposes such as fire protection, stock watering, and enhancing wildlife habitats. With a dam height of 9 feet and a storage capacity of 518 acre-feet, Wetlands No. 6 covers an area of 91 acres and is regulated by the Wyoming State Engineer's Office and Game and Fish Department.

Despite its low hazard potential, Wetlands No. 6 is in poor condition as of the last assessment in May 2017. The dam features an uncontrolled spillway with a width of 60 feet and an outlet gate for controlled release of water. The site has a moderate risk rating, indicating potential issues that may require attention in the future. It is important for water resource and climate enthusiasts to monitor the condition and management of Wetlands No. 6 to ensure its continued effectiveness in providing valuable ecosystem services and water storage in the region.

As a vital component of the Shoshone River watershed, Wetlands No. 6 plays a crucial role in supporting local biodiversity and maintaining ecological balance. With its strategic location and design, this wetland area contributes to the overall health of the surrounding environment and provides essential habitat for a variety of fish and wildlife species. Continued monitoring and management efforts will be key in ensuring the longevity and functionality of Wetlands No. 6 for future generations to enjoy and benefit from.

Year Completed

1993

Dam Length

3000

Dam Height

9

River Or Stream

SH0SHONE RIVER-OFFSTREAM

Primary Dam Type

Earth

Surface Area

91

Hydraulic Height

7

Drainage Area

0.3

Nid Storage

518

Structural Height

9

Outlet Gates

Other Controlled - 1

Hazard Potential

Low

Foundations

Soil

Nid Height

9
       
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.