Arnoname 23 Reservoir Report
Nearby: Wingert Lake Dam Henley's Dam
Last Updated: December 5, 2025
Arnoname 23, located in Mt.
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Summary
Vernon, Arkansas, is a privately owned Earth dam completed in 1968 for recreational purposes along the Muddy Bayou-Os river stream. Standing at a height of 20 feet and with a length of 250 feet, the dam provides a maximum storage capacity of 145 acre-feet, with a normal storage level of 65 acre-feet. Despite its low hazard potential, the dam's condition assessment is currently listed as "Not Rated."
With no state regulatory oversight, Arnoname 23 is not subject to state permitting, inspection, or enforcement. The dam is not associated with any federal agencies for design, construction, funding, or regulatory purposes. While the dam has not been inspected recently, there is no Emergency Action Plan (EAP) in place, raising concerns about emergency preparedness in case of a dam failure. The lack of inundation maps, risk assessments, and risk management measures further highlight the need for improved safety protocols.
As a recreational structure, Arnoname 23 serves as a popular destination for water and climate enthusiasts in White County, Arkansas. However, the absence of proper assessments, maintenance, and emergency plans emphasizes the importance of monitoring and improving the safety of this dam to ensure the protection of both the environment and local communities in the event of a disaster.
Year Completed |
1968 |
Dam Length |
250 |
Dam Height |
20 |
River Or Stream |
MUDDY BAYOU-OS |
Primary Dam Type |
Earth |
Hydraulic Height |
20 |
Nid Storage |
145 |
Structural Height |
20 |
Hazard Potential |
Low |
Nid Height |
20 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Dam Data Reference
Condition Assessment
SatisfactoryNo 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
HighDams 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.
Arnoname 23