Reservoir Dike Reservoir Report
Last Updated: December 5, 2025
Reservoir Dike, located in Graham, Arizona, is a gravity dam primarily constructed for flood risk reduction purposes.
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Summary
Managed by the Bureau of Land Management, this federal-owned structure was completed in 1975 and has a hydraulic height of 16 feet and a structural height of 20 feet. With a storage capacity of 124.71 acre-feet, Reservoir Dike serves to mitigate potential flooding in the area, safeguarding nearby communities and ecosystems.
Despite its low hazard potential, Reservoir Dike has not been rated for its condition assessment. The dam spans a length of 1050 feet, with a surface area of 11.94 acres and a normal storage capacity of 48.62 acre-feet. While it is not regulated at the state level, the dam's inspection frequency is set at 5 years. With no associated structures and no outlet gates, Reservoir Dike stands as a crucial infrastructure for flood control in the region, highlighting the importance of water resource management and climate resilience efforts.
As water resource and climate enthusiasts, understanding the significance of dams like Reservoir Dike is essential in recognizing their role in mitigating the impacts of extreme weather events. By maintaining and monitoring these structures, we can ensure the safety and sustainability of water resources, protecting communities and ecosystems from the threats posed by floods and other hydrological risks. With its historical construction and ongoing management by the Bureau of Land Management, Reservoir Dike stands as a testament to the vital role of infrastructure in climate adaptation and water security.
Year Completed |
1975 |
Dam Length |
1050 |
Primary Dam Type |
Gravity |
Surface Area |
11.94 |
Hydraulic Height |
16 |
Drainage Area |
1.26 |
Nid Storage |
124.71 |
Structural Height |
20 |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
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.
Reservoir Dike