Dennehotso
Dennehotso is an earth dam located in Apache County, Arizona. It carries a High hazard potential classification.
About Dennehotso
The primary purpose of Dennehotso 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 Laguna Creek - Tr near Dennehotso.
The dam stands 11 feet tall and stretches 3,200 feet across, creates a reservoir covering 25 acres, has a maximum storage capacity of 200 acre-feet, and collects water from a drainage area of 4 square miles.
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. Notably, no emergency action plan is currently on file for this high-hazard dam. The most recent inspection on record was 05/23/2023.
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 | Dennehotso |
| River/Stream | Laguna Creek - Tr |
| Coordinates | 36.84448, -109.86707 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 11 ft |
| Dam Height | 11 ft |
| Dam Length | 3,200 ft |
Storage & Hydraulics
| NID Storage | 200 acre-ft |
| Max Storage | 200 acre-ft |
| Normal Storage | 66 acre-ft |
| Surface Area | 25 acres |
| Drainage Area | 4 sq mi |
| Spillway Type | None |
Ownership & Safety
| Purpose | Irrigation |
| Owner | BIA |
| Owner Type | Federal |
| Hazard Classification | High |
| Condition Assessment | Not Rated |
| Last Inspection | 05/23/2023 |
| Emergency Action Plan | No |
Identifiers
| NID ID | AZ10398 |
| Federal ID | AZ10398 |
| More Info | State Dam Safety Program |