Fenceline Tank Reservoir Report
Nearby: Haumont Tank Dad Patterson
Last Updated: December 5, 2025
Fenceline Tank, located in Apache County, Arizona, is a privately-owned water structure managed and regulated by the Arizona Department of Water Resources.
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Summary
Built in 1944, this Earth-type dam serves multiple purposes including fire protection, stock, small fish pond, irrigation, and primarily for fish and wildlife conservation. With a storage capacity of 180.3 acre-feet and a surface area of 32.3 acres, the dam stands at a height of 16.8 feet along the Mail Station Draw river or stream.
Despite being classified as low hazard potential, the risk assessment for Fenceline Tank indicates a high risk level of 2. The last inspection conducted in 2009 highlights the need for regular monitoring and maintenance to ensure its structural integrity and continued functionality. As a vital resource for the surrounding wildlife and community, it is crucial for stakeholders to implement appropriate risk management measures and emergency response plans to safeguard the dam and nearby areas in case of any unforeseen events.
Year Completed |
1944 |
Dam Length |
456 |
Dam Height |
16.8 |
River Or Stream |
MAIL STATION DRAW |
Primary Dam Type |
Earth |
Surface Area |
32.3 |
Hydraulic Height |
16.8 |
Nid Storage |
180.3 |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
17 |
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.
Fenceline Tank