Ross
Ross is a gravity dam located in Calaveras County, California, built in 1892. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About Ross
The primary purpose of Ross is hydroelectric. The dam generates hydroelectric power by channeling water through turbines, converting the energy of flowing water into electricity. The dam is owned by Calaveras County Water District (private). It impounds the Angels Creek near Angels Camp.
The dam stands 44 feet tall and stretches 710 feet across, creates a reservoir covering 14 acres, and has a maximum storage capacity of 110 acre-feet. Completed in 1892, the structure is over a century 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. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 08/10/2022.
At 44 feet, this dam is taller than 90% of dams nationwide.
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Location
| State | California |
| County | Calaveras |
| Nearest City | Angels Camp |
| River/Stream | Angels Creek |
| Coordinates | 38.11630, -120.51570 |
Physical Characteristics
| Dam Type | Gravity |
| NID Height | 44 ft |
| Dam Height | 44 ft |
| Dam Length | 710 ft |
| Year Completed | 1892 (134 years old) |
Storage & Hydraulics
| NID Storage | 110 acre-ft |
| Max Storage | 110 acre-ft |
| Normal Storage | 100 acre-ft |
| Surface Area | 14 acres |
| Max Discharge | 20 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Hydroelectric |
| Owner | Calaveras County Water District |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 08/10/2022 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | CA00424 |
| Federal ID | CA00424 |
| More Info | State Dam Safety Program |