Indian Creek No. 1 Reservoir Report

Last Updated: December 5, 2025

Indian Creek No.


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Summary

1, located in Guernsey, Wyoming, is a privately owned earth dam built in 1953 for irrigation purposes on Indian Creek. Standing at a height of 41 feet with a hydraulic height of 36 feet, the dam boasts a storage capacity of 262 acre-feet and covers an area of 14 acres. Despite being classified as low hazard potential, the dam is regularly inspected by the state regulatory agency to ensure its fair condition and continued safety.

With a spillway width of 50 feet and an uncontrolled spillway type, Indian Creek No. 1 provides essential water resources for agricultural activities in the region. The dam is equipped with one slide (sluice gate) outlet gate and is situated in a scenic location within Converse County, offering a vital source of water for the surrounding community. As a state-regulated and permitted structure, the dam is subject to regular inspections, enforcement, and emergency preparedness measures to mitigate any potential risks and ensure its ongoing functionality.

Managed by a private owner, Indian Creek No. 1 serves as a crucial asset for irrigation in the area, contributing to the agricultural productivity of the region. With its moderate risk assessment rating and fair condition, the dam stands as a testament to effective water resource management and serves as a key infrastructure supporting the local economy and environment. As a part of the water infrastructure network in Wyoming, Indian Creek No. 1 underscores the importance of maintaining and regulating such structures to ensure sustainable water management practices and climate resilience.

Year Completed

1953

Dam Length

760

Dam Height

41

River Or Stream

INDIAN CREEK

Primary Dam Type

Earth

Surface Area

14

Hydraulic Height

36

Nid Storage

262

Structural Height

41

Outlet Gates

Slide (sluice gate) - 1

Hazard Potential

Low

Foundations

Soil

Nid Height

41
       
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.