Arnoname 27 Reservoir Report
Nearby: Barr Lake Dam Dawson Lake Dam
Last Updated: December 25, 2025
Arnoname 27, located in Hot Spring, Arkansas, is a privately owned dam built in 1953 for water supply purposes on the RHINEHART BRANCH-TR river/stream.
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Summary
With a height of 12 feet and a hydraulic height of 11 feet, this earth dam spans 470 feet and has a storage capacity of 52 acre-feet. Despite not being regulated by the state of Arkansas, Arnoname 27 is considered to have a significant hazard potential, although its condition has not been officially rated.
Managed by the Little Rock District of the US Army Corps of Engineers, Arnoname 27 is in the congressional district represented by Bruce Westerman (R). With no associated structures or federal agency involvement in design, construction, funding, or regulation, this dam serves as a critical water resource in the area of POYEN. As an Earth-type dam, it plays a vital role in the local water supply infrastructure, showcasing the importance of private ownership in water resource management and climate adaptation efforts.
Year Completed |
1953 |
Dam Length |
470 |
River Or Stream |
RHINEHART BRANCH-TR |
Primary Dam Type |
Earth |
Hydraulic Height |
11 |
Nid Storage |
52 |
Structural Height |
12 |
Hazard Potential |
Significant |
Nid Height |
12 |
Seasonal Comparison
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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 27