Rgs Dam Pond E1 Reservoir Report

Last Updated: December 15, 2025

Located in Clark County, Nevada, Rgs Dam Pond E1 is a public utility water resource structure regulated by the Nevada Department of Water Resources.


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Summary

Completed in 1986, this earth dam stands at a height of 19 feet and has a maximum storage capacity of 92 acre-feet. With a surface area of 7.5 acres and a drainage area of 0.1 square miles, this dam serves as a vital component in managing water resources in the region.

Despite its low hazard potential and fair condition assessment, Rgs Dam Pond E1 has undergone modifications in 2002 to enhance its hydraulic and structural integrity. The dam lacks spillway facilities but is equipped with outlet gates to manage water flow. With a risk assessment rating of high (2), it is essential to ensure that appropriate risk management measures are in place to mitigate any potential hazards associated with the structure.

The dam's proximity to the Muddy River-OS and its function as a water storage facility highlight its importance in the local water supply system. As climate change continues to impact water resources, the maintenance and proper management of structures like Rgs Dam Pond E1 play a crucial role in ensuring water security and resilience in the face of evolving environmental challenges.

Years Modified

2002 - Hydraulic, 2002 - Structural

Year Completed

1986

Dam Length

2920

Dam Height

19

River Or Stream

MUDDY RIVER-OS

Primary Dam Type

Earth

Surface Area

7.5

Hydraulic Height

16

Drainage Area

0.1

Nid Storage

92

Structural Height

11

Outlet Gates

None - 0

Hazard Potential

Low

Foundations

Soil

Nid Height

19
       
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.