Tsaile
Tsaile is an earth dam located in Apache County, Arizona, built in 1964. It carries a High hazard potential classification and has a satisfactory condition assessment.
About Tsaile
The primary purpose of Tsaile is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Bia (federal). It impounds the Tsaile Creek near Chinle.
The dam stands 65 feet tall and stretches 2,000 feet across, creates a reservoir covering 265 acres, has a maximum storage capacity of 6,504 acre-feet, and collects water from a drainage area of 66 square miles. Completed in 1964, the structure is well into its service life at over 50 years old.
This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. An emergency action plan is in place for this dam. The most recent inspection on record was 06/18/2024.
At 65 feet, this dam is taller than 96% of all dams in the United States.
Living Downstream
If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The Arizona dam safety program can provide more specific information about emergency planning for this structure.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Arizona |
| County | Apache |
| Nearest City | Chinle |
| River/Stream | Tsaile Creek |
| Coordinates | 36.27440, -109.20400 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 65 ft |
| Dam Height | 48 ft |
| Dam Length | 2,000 ft |
| Year Completed | 1964 (62 years old) |
Storage & Hydraulics
| NID Storage | 6,504 acre-ft |
| Max Storage | 6,504 acre-ft |
| Normal Storage | 3,906 acre-ft |
| Surface Area | 265 acres |
| Drainage Area | 66 sq mi |
| Max Discharge | 16,430 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Irrigation |
| Owner | BIA |
| Owner Type | Federal |
| Hazard Classification | High |
| Condition Assessment | Satisfactory |
| Last Inspection | 06/18/2024 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | AZ10303 |
| Federal ID | AZ10303 |
| More Info | State Dam Safety Program |