Hx Detention Dam Reservoir Report
Last Updated: December 12, 2025
Hx Detention Dam, located in Solomon, Arizona, was completed in 1956 by the Bureau of Land Management as a flood risk reduction structure along the Gold Gulch river.
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Summary
The dam stands at a hydraulic height of 33 feet and spans 3600 feet in length, with a storage capacity of 1660 acre-feet. Despite its low hazard potential and fair condition assessment, the dam has a moderate risk rating, indicating the need for ongoing monitoring and maintenance to ensure its effectiveness in mitigating flood risks in the region.
Operated and funded by the Bureau of Land Management, Hx Detention Dam plays a crucial role in managing water resources in Graham County, Arizona. The dam's uncontrolled spillway and stone buttress core type contribute to its flood risk reduction capabilities, with a maximum discharge capacity of 3578 cubic feet per second. Although the dam has not been modified in recent years, its inspection frequency of 5 years ensures that any necessary repairs or upgrades are promptly addressed to maintain its functionality and safety for the surrounding community.
As a key piece of infrastructure in the region, Hx Detention Dam serves as a vital resource for protecting downstream areas from potential flooding events. With a surface area of 265 acres and a drainage area of 147 acres, the dam provides essential water storage and flood control services for the local ecosystem. Despite its remote location, the dam's strategic design and operational oversight by the Bureau of Land Management highlight the importance of proactive water resource management in mitigating the impacts of extreme weather events on the surrounding landscape.
Year Completed |
1956 |
Dam Length |
3600 |
River Or Stream |
GOLD GULCH |
Surface Area |
265 |
Hydraulic Height |
33 |
Drainage Area |
147 |
Nid Storage |
1660 |
Structural Height |
3 |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
33 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Frye Creek Near Thatcher
|
1cfs |
Gila River At Head Of Safford Valley
|
81cfs |
Gila River At Duncan
|
31cfs |
Bonita Creek Near Morenci
|
3cfs |
Gila River Near Clifton
|
43cfs |
Gila River Below Blue Creek
|
47cfs |
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.
Hx Detention Dam