Cholla Cooling Pond Reservoir Report
Last Updated: December 5, 2025
Cholla Cooling Pond in Joseph City, Arizona, is a significant water resource managed by a public utility.
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Summary
This earth dam structure, completed in 1961, stands at a height of 13 feet and has a storage capacity of 2,200 acre-feet. The pond covers a surface area of 380 acres and is situated alongside the Little Colorado River-offstream, adding to the region's water supply and providing cooling functions for nearby facilities.
The dam's spillway type is uncontrolled with a width of 30 feet, and it is inspected every three years to ensure its satisfactory condition. Despite being classified as having a significant hazard potential, the risk assessment is moderate (3), indicating a manageable level of risk. The Arizona Department of Water Resources plays a crucial role in regulating, permitting, inspecting, and enforcing the state's water resource policies at Cholla Cooling Pond, highlighting the importance of water management and climate resilience in the region.
Overall, Cholla Cooling Pond serves as a vital water infrastructure in Navajo County, Arizona, contributing to water storage, cooling, and regulatory functions. With its strategic location and role in the region's water management system, the pond underscores the intersection of water resources and climate considerations, emphasizing the need for sustainable practices and effective risk management in safeguarding this essential resource for the future.
Year Completed |
1961 |
Dam Length |
13580 |
Dam Height |
13 |
River Or Stream |
LITTLE COLORADO RIVER-OFFSTREAM - TR |
Primary Dam Type |
Earth |
Surface Area |
380 |
Hydraulic Height |
13 |
Nid Storage |
2200 |
Hazard Potential |
Significant |
Foundations |
Soil |
Nid Height |
13 |
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.
Cholla Cooling Pond