South Mountain is an earth dam located in Modoc County, California, built in 1980. It carries a Low hazard potential classification.
Dam profile
NID height · 10 ft10 ft tall and 1,235 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 South Mountain
The primary purpose of South Mountain is fire protection, stock, or small fish pond. The dam maintains a small impoundment used for fire suppression, livestock watering, or as a fish pond. The dam is owned by Usda Fs (federal).
The dam stands 10 feet tall and stretches 1,235 feet across, has a storage capacity of 566 acre-feet, and collects water from a drainage area of 4 square miles. Completed in 1980, the structure is 46 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 08/31/2010. That was over 16 years ago.
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Location
| State | California |
| County | Modoc |
| Coordinates | 41.80556, -120.65000 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 10 ft |
| Dam Height | 10 ft |
| Dam Length | 1,235 ft |
| Year Completed | 1980 (46 years old) |
Storage & Hydraulics
| NID Storage | 566 acre-ft |
| Normal Storage | 566 acre-ft |
| Drainage Area | 4 sq mi |
| Max Discharge | 303 cfs |
| Spillway Type | Controlled |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | Usda Fs |
| Owner Type | Federal |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Last Inspection | 08/31/2010 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | CA10318 |
| Federal ID | CA10318 |
| More Info | State Dam Safety Program |