Del Rio #1 Dam Reservoir Report
Last Updated: December 23, 2025
Del Rio #1 Dam, located in Chino Valley, Arizona, is a private-owned structure regulated by the Arizona Department of Water Resources.
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Summary
This earth-type dam serves multiple purposes, including fish and wildlife pond management, irrigation, and recreation. Standing at a height of 18.4 feet with a length of 2044 feet, the dam has a storage capacity of 161.9 acre-feet and covers a surface area of 26.4 acres along the Del Rio Wash.
Despite being classified as low hazard potential, Del Rio #1 Dam carries a moderate risk rating. The last inspection was conducted in September 2012, with an inspection frequency of every 5 years. While the dam's condition assessment is currently not rated, it is important to note that emergency action plans and risk management measures have not been documented. The dam's spillway is uncontrolled, and there are no outlet gates or associated structures, indicating a basic design that may require updates to meet modern safety standards.
For water resource and climate enthusiasts, Del Rio #1 Dam presents an opportunity to explore the intersection of human intervention in natural ecosystems for the benefit of fish and wildlife habitat. With its location in Yavapai County and close proximity to the Del Rio Wash, the dam serves as a focal point for environmental conservation efforts in Arizona. As discussions around water management and infrastructure continue to evolve, the maintenance and evaluation of dams like Del Rio #1 will be crucial for ensuring the sustainability of water resources in the region.
Dam Length |
2044 |
Dam Height |
18.4 |
River Or Stream |
DEL RIO WASH |
Primary Dam Type |
Earth |
Surface Area |
26.4 |
Hydraulic Height |
18.4 |
Nid Storage |
161.9 |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
18 |
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.
Del Rio #1 Dam