Lake New Moon Dam Reservoir Report

Last Updated: December 5, 2025

Lake New Moon Dam, located in Saline, Arkansas, was completed in 1938 and is primarily used for water supply purposes.


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Summary

The dam, with a hydraulic height of 13 feet and a structural height of 15 feet, impounds Caney Creek-TR and has a maximum storage capacity of 54 acre-feet. With a low hazard potential and a moderate risk assessment rating, the dam is not currently regulated by the state and has not been subject to recent inspections.

Owned by a private entity, Lake New Moon Dam was designed by the USDA NRCS and is operated by the Natural Resources Conservation Service. The dam features an uncontrolled spillway type and spans 805 feet in length. Despite its age, the dam's condition assessment is listed as "Not Rated," indicating that its structural integrity has not been recently evaluated. With no emergency action plan in place and limited risk management measures identified, the dam presents a moderate risk in the event of a breach or failure.

Although not currently under state jurisdiction or regulation, Lake New Moon Dam serves as a vital water resource for the area, storing up to 54 acre-feet of water for various purposes. With its historical significance dating back to the late 1930s, the dam stands as a testament to early water supply infrastructure in Arkansas. As climate change continues to impact water resources, the maintenance and monitoring of dams like Lake New Moon Dam become increasingly important to ensure the safety and reliability of water supplies in the region.

Year Completed

1938

Dam Length

805

River Or Stream

CANEY CREEK-TR

Primary Dam Type

Earth

Hydraulic Height

13

Nid Storage

54

Structural Height

15

Hazard Potential

Low

Nid Height

15
       
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.