Enl. Creswell No. 1 Reservoir Report

Last Updated: December 15, 2025

Enl.


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Summary

Creswell No. 1 is a privately owned irrigation dam located in Campbell, Wyoming. Designed by HUGH LOWHAM and completed in 2007, this earth dam stands at a height of 21 feet and has a maximum storage capacity of 903 acre-feet. The primary purpose of this dam is for irrigation, with additional uses including fire protection, stock watering, and small fish pond maintenance.

Despite its low hazard potential, Enl. Creswell No. 1 is rated as having poor condition as of the last inspection in July 2019. The dam has a moderate risk assessment level of 3, indicating the need for risk management measures to be implemented. The spillway of this dam is uncontrolled with a width of 225 feet, and it has an outlet gate for water release.

Situated on an unnamed draw with a drainage area of 0.15 square miles, Enl. Creswell No. 1 plays a crucial role in water resource management in the region. Its location in Congressional District 00, Wyoming, under the jurisdiction of the State Regulatory Agency (SEO) highlights the importance of state permitting, inspection, and enforcement for maintaining the integrity and safety of this essential water infrastructure.

Year Completed

2007

Dam Length

1550

Dam Height

21

River Or Stream

UNNAMED DRAW

Primary Dam Type

Earth

Surface Area

53

Hydraulic Height

16

Drainage Area

0.15

Nid Storage

903

Structural Height

27

Outlet Gates

Valve - 1

Hazard Potential

Low

Foundations

Soil

Nid Height

27
       
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.