Flat Rock South Dam is an earth dam located in Apache County, Arizona. It carries a Low hazard potential classification.
Dam profile
NID height · 15 ft15 ft tall and 950 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About Flat Rock South Dam
The primary purpose of Flat Rock South Dam 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 Nazlini Wash - Os.
The dam stands 15 feet tall and stretches 950 feet across, and has a maximum storage capacity of 220 acre-feet.
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.
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Location
| State | Arizona |
| County | Apache |
| River/Stream | Nazlini Wash - Os |
| Coordinates | 35.98807, -109.54142 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 15 ft |
| Dam Height | 15 ft |
| Dam Length | 950 ft |
Storage & Hydraulics
| NID Storage | 220 acre-ft |
| Max Storage | 220 acre-ft |
Ownership & Safety
| Purpose | Irrigation |
| Owner | Bia |
| Owner Type | Federal |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | AZ10454 |
| Federal ID | AZ10454S001 |
| More Info | State Dam Safety Program |