Enterprise Reservoir Report

Last Updated: December 5, 2025

Located in Fremont County, Wyoming, the Enterprise dam on Townsend Creek was completed in 1940 and primarily serves as an irrigation source, with capabilities for fire protection, stock watering, and small fish ponds as well.


°F

°F

mph

Wind

%

Humidity

Summary

The dam stands at a height of 27 feet, with a hydraulic height of 22 feet and a structural height of 29 feet, providing a storage capacity of 2409 acre-feet. Covering a surface area of 134 acres and draining a watershed area of 18.9 square miles, Enterprise plays a crucial role in water management in the region.

With a spillway type classified as 'Uncontrolled' and a spillway width of 20 feet, the dam has been deemed to have a high hazard potential, although its current condition assessment is fair. The last inspection in July 2021 indicated a need for regular monitoring and maintenance to ensure the dam's continued safety and effectiveness. Despite being privately owned, Enterprise is subject to state regulation, inspection, and enforcement, highlighting the collaborative effort between private and public entities in ensuring the responsible management of water resources in Wyoming.

As an essential piece of infrastructure in the region, Enterprise not only contributes to agricultural activities through irrigation but also plays a role in safeguarding against fires and providing water for livestock. With its location in the midst of a beautiful natural landscape, the dam serves as a reminder of the intricate balance between human development and environmental conservation, showcasing the importance of sustainable water resource management in the face of changing climate patterns and increasing water demands.

Year Completed

1940

Dam Length

1665

Dam Height

27

River Or Stream

TOWNSEND CREEK

Primary Dam Type

Earth

Surface Area

134

Hydraulic Height

22

Drainage Area

18.9

Nid Storage

2409

Structural Height

29

Outlet Gates

Slide (sluice gate) - 1

Hazard Potential

High

Foundations

Soil

Nid Height

29
       
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.