Summary
Managed by the Arizona Department of Water Resources, this earth dam structure stands at 15 feet high and has a storage capacity of 114 acre-feet, covering a surface area of 15.2 acres. With a spillway width of 18 feet and a low hazard potential, Cortez Tank plays a crucial role in maintaining water supply for the surrounding area.
Situated along the Gila River, Cortez Tank serves as a vital water source for the Maricopa County community, offering a reliable supply for both agricultural and residential needs. Although the dam's condition assessment is currently not rated, its inspection frequency of every 5 years ensures regular monitoring and maintenance to uphold its structural integrity. With a moderate risk assessment level and low hazard potential, Cortez Tank remains a key asset in the region's water resource management strategy for both emergency preparedness and sustainable water usage.
Despite its status as a privately owned structure, Cortez Tank plays a significant role in water conservation efforts in the area. With a solid regulatory framework in place and a history of state inspection and enforcement, this water resource stands as a testament to effective collaboration between private ownership and governmental oversight in ensuring the sustainability and safety of water resources in the region.
Dam Length |
864 |
Dam Height |
15 |
River Or Stream |
GILA RIVER - TR |
Primary Dam Type |
Earth |
Surface Area |
15.2 |
Hydraulic Height |
15 |
Nid Storage |
114 |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
15 |
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.
Cortez Tank