Telephone Flat is an earth dam located in Modoc County, California, built in 1931. It carries a Low hazard potential classification.
Dam profile
NID height · 7 ft7 ft tall and 425 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 Telephone Flat
The primary purpose of Telephone Flat 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 7 feet tall and stretches 425 feet across, has a storage capacity of 1,200 acre-feet, and collects water from a drainage area of 10 square miles. Completed in 1931, the structure is well-established, with more than 75 years of service.
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 | 41.77778, -120.68750 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 7 ft |
| Dam Height | 7 ft |
| Dam Length | 425 ft |
| Year Completed | 1931 (95 years old) |
Storage & Hydraulics
| NID Storage | 1,200 acre-ft |
| Normal Storage | 1,200 acre-ft |
| Drainage Area | 10 sq mi |
| 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 | CA10210 |
| Federal ID | CA10210 |
| More Info | State Dam Safety Program |