Arnoname 140 Reservoir Report

Last Updated: December 5, 2025

Arnoname 140 is a privately owned earth dam located in Garland, Arkansas, specifically in the city of PEARCY.


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Summary

Completed in 1964, this dam serves the primary purpose of water supply for the area. With a hydraulic height of 9 feet and a structural height of 11 feet, Arnoname 140 has a NID storage capacity of 55 acre-feet, with a maximum storage capacity of 55 acre-feet and a normal storage capacity of 45 acre-feet. The dam is associated with the Lost Creek-OS river or stream and is under the jurisdiction of the Little Rock District of the US Army Corps of Engineers.

Despite its low hazard potential, Arnoname 140 has not been rated for its condition assessment. The dam spans a length of 480 feet and does not have a spillway type or outlet gates. It has not been inspected recently, and there are no emergency action plans in place. While the risk assessment and management measures are currently unknown, the dam remains an important water resource infrastructure in the region, providing essential water supply services to the community. For water resource and climate enthusiasts, Arnoname 140 presents an intriguing case study of a privately owned dam contributing to water management efforts in Arkansas.

Year Completed

1964

Dam Length

480

River Or Stream

LOST CREEK-OS

Primary Dam Type

Earth

Hydraulic Height

9

Nid Storage

55

Structural Height

11

Hazard Potential

Low

Nid Height

11
       
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.