Mccarty
Mccarty is an earth dam located in Calaveras County, California, built in 1938. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About Mccarty
The primary purpose of Mccarty is water supply. The dam stores water for municipal, industrial, or agricultural use, helping ensure a reliable supply for the surrounding area. The dam is owned by Patricia Mccarty (private). It impounds the Tr Johnny Creek.
The dam stands 19 feet tall and stretches 670 feet across, creates a reservoir covering 17 acres, has a maximum storage capacity of 93 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1938, 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. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 04/16/2025.
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Location
| State | California |
| County | Calaveras |
| River/Stream | Tr Johnny Creek |
| Coordinates | 38.02630, -120.69100 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 19 ft |
| Dam Height | 19 ft |
| Dam Length | 670 ft |
| Year Completed | 1938 (88 years old) |
Storage & Hydraulics
| NID Storage | 93 acre-ft |
| Max Storage | 93 acre-ft |
| Surface Area | 17 acres |
| Drainage Area | 0 sq mi |
Ownership & Safety
| Purpose | Water Supply |
| Owner | Patricia McCarty |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 04/16/2025 |
| Emergency Action Plan | No |
Identifiers
| NID ID | CA00621 |
| Federal ID | CA00621 |
| More Info | State Dam Safety Program |