Mcmahon
California — Mariposa County — Maxwell Creek
Location
| State | California |
| County | Mariposa |
| River | Maxwell Creek |
| Coordinates | 37.69916, -120.19824 |
Physical Characteristics
| NID Height | 52 ft |
| Dam Height | 52 ft |
| Dam Length | 705 ft |
| NID Storage | 520 acre-ft |
| Max Storage | 520 acre-ft |
| Surface Area | 26 acres |
Safety Classification
| Hazard Potential | Low |
| Condition Assessment | Satisfactory |
| EAP Status | No |
| Last Inspection | May 28, 2025 |
| Inspection Frequency | 0.5 |
Dam Information
| Year Completed | 1957 |
| Primary Purpose | Water Supply |
| Dam Type | Earth |
| Owner Type | Private |
| Owner | Kym Carpenter |
Location Map
About This Dam Record
Dam safety data is maintained by the Army Corps of Engineers National Inventory of Dams (NID). High-hazard dams are those where failure could cause loss of life or major property damage downstream.