Canyon Mouth Reservoir Report
Nearby: Seligman Railroad Embankment
Last Updated: December 15, 2025
Canyon Mouth, located in Chino Valley, Arizona, is a privately owned dam on the Big Chino Wash with a primary purpose classified as "Other." Built in 1916, this earth dam stands at a height of 34 feet and has a length of 850 feet.
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Summary
It has a storage capacity of 600 acre-feet and serves to regulate the flow of water in the region, with a low hazard potential and a moderate risk assessment score of 3.
Managed by the Arizona Department of Water Resources, Canyon Mouth is subject to state regulation, permitting, inspection, and enforcement. The dam features an uncontrolled spillway with a width of 200 feet, designed to handle maximum discharge events. Despite not being rated for condition assessment, the structure has been determined to meet state jurisdictional and regulatory requirements, ensuring its continued safety and functionality for the surrounding community.
With a history dating back over a century, Canyon Mouth represents a vital component of water resource management in Yavapai County. As a key infrastructure in the region, it plays a crucial role in flood control, water storage, and overall environmental sustainability. Climate and water enthusiasts can appreciate the engineering behind this multi-arch dam and its significance in maintaining water security in the area.
Year Completed |
1916 |
Dam Length |
850 |
Dam Height |
22 |
River Or Stream |
BIG CHINO WASH |
Primary Dam Type |
Earth |
Hydraulic Height |
22 |
Drainage Area |
200 |
Nid Storage |
600 |
Structural Height |
34 |
Hazard Potential |
Low |
Foundations |
Unlisted/Unknown |
Nid Height |
34 |
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.
Canyon Mouth