Tonto Dam
Tonto Dam is an earth dam located in Apache County, Arizona, built in 1964. It carries a Low hazard potential classification.
About Tonto Dam
The primary purpose of Tonto Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Bia (federal). It impounds the Tonto Creek near White River.
The dam stands 40 feet tall and stretches 380 feet across, creates a reservoir covering 78 acres, has a maximum storage capacity of 2,098 acre-feet, and collects water from a drainage area of 7 square miles. Completed in 1964, the structure is well into its service life at over 50 years old.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. The most recent inspection on record was 10/01/2019.
At 40 feet, this dam is taller than 87% of dams nationwide.
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Location
| State | Arizona |
| County | Apache |
| Nearest City | White River |
| River/Stream | Tonto Creek |
| Coordinates | 33.69150, -109.59550 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 40 ft |
| Dam Height | 40 ft |
| Dam Length | 380 ft |
| Year Completed | 1964 (62 years old) |
Storage & Hydraulics
| NID Storage | 2,098 acre-ft |
| Max Storage | 2,098 acre-ft |
| Normal Storage | 1,090 acre-ft |
| Surface Area | 78 acres |
| Drainage Area | 7 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Recreation |
| Owner | BIA |
| Owner Type | Federal |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Last Inspection | 10/01/2019 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | AZ10405 |
| Federal ID | AZ10405 |
| More Info | State Dam Safety Program |