Irene No. 2 Reservoir Report

Last Updated: December 5, 2025

Irene No.


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Summary

2, located in Carbon, Wyoming, along Indian Springs Creek, is a privately owned earth dam primarily used for irrigation purposes. Built in 1953, this dam stands at a height of 30 feet with a hydraulic height of 25 feet and a length of 400 feet, providing a storage capacity of 130 acre-feet. Despite its low hazard potential, the dam's condition assessment in 2020 indicated poor structural health, highlighting the need for maintenance and repairs to ensure its continued functionality.

The dam features an uncontrolled spillway and a single valve outlet gate, serving as a crucial water resource for agricultural activities in the area. However, with a risk assessment rating of moderate (3), there is a pressing need for risk management measures to mitigate potential hazards and ensure the safety of downstream communities. The dam is under state regulation and inspection, indicating a commitment to ensuring its integrity and compliance with safety standards.

As climate change continues to impact water resources and infrastructure, the significance of maintaining and monitoring dams like Irene No. 2 becomes increasingly important. With its historical significance in the region and vital role in supporting agricultural activities, efforts to address its poor condition and enhance its safety features are essential for sustainable water management in the face of evolving climatic challenges.

Year Completed

1953

Dam Length

400

Dam Height

30

River Or Stream

INDIAN SPRINGS CREEK

Primary Dam Type

Earth

Surface Area

7

Hydraulic Height

25

Nid Storage

130

Structural Height

30

Outlet Gates

Valve - 1

Hazard Potential

Low

Foundations

Soil

Nid Height

30
       
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.