Mount Stoneman
Mount Stoneman is an earth dam located in Sacramento County, California, built in 1937. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About Mount Stoneman
The primary purpose of Mount Stoneman 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 California Department Of Corrections And Rehabilitation (state). It impounds the Tr American Rv.
The dam stands 43 feet tall and stretches 420 feet across, creates a reservoir covering 2 acres, has a maximum storage capacity of 33 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1937, 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 10/28/2025.
At 43 feet, this dam is taller than 89% of dams nationwide.
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Location
| State | California |
| County | Sacramento |
| River/Stream | Tr American Rv |
| Coordinates | 38.69900, -121.15300 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 43 ft |
| Dam Height | 43 ft |
| Dam Length | 420 ft |
| Year Completed | 1937 (89 years old) |
Storage & Hydraulics
| NID Storage | 33 acre-ft |
| Max Storage | 33 acre-ft |
| Surface Area | 2 acres |
| Drainage Area | 0 sq mi |
Ownership & Safety
| Purpose | Water Supply |
| Owner | California Department of Corrections and Rehabilitation |
| Owner Type | State |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 10/28/2025 |
| Emergency Action Plan | No |
Identifiers
| NID ID | CA00009 |
| Federal ID | CA00009 |
| More Info | State Dam Safety Program |