Lake Mary
Lake Mary is an earth dam located in Placer County, California, built in 1926. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About Lake Mary
Lake Mary is a dam in Placer, California. The dam is owned by Sugar Bowl Corporation (private). It impounds the Tr Sfk Yuba Rv.
The dam stands 22 feet tall and stretches 600 feet across, creates a reservoir covering 18 acres, has a maximum storage capacity of 172 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1926, 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 10/20/2025.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | California |
| County | Placer |
| River/Stream | Tr Sfk Yuba Rv |
| Coordinates | 39.31200, -120.33190 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 22 ft |
| Dam Height | 22 ft |
| Dam Length | 600 ft |
| Year Completed | 1926 (100 years old) |
Storage & Hydraulics
| NID Storage | 172 acre-ft |
| Max Storage | 172 acre-ft |
| Surface Area | 18 acres |
| Drainage Area | 0 sq mi |
Ownership & Safety
| Purpose | Other |
| Owner | Sugar Bowl Corporation |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 10/20/2025 |
| Emergency Action Plan | No |
Identifiers
| NID ID | CA00539 |
| Federal ID | CA00539 |
| More Info | State Dam Safety Program |