Hein
Hein is an earth dam located in Calaveras County, California, built in 1962. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About Hein
The primary purpose of Hein 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 Naki, Inc. (private). It impounds the Tr Bear Creek.
The dam stands 16 feet tall and stretches 1,250 feet across, creates a reservoir covering 26 acres, has a maximum storage capacity of 145 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1962, the structure is well into its service life at over 50 years 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 02/13/2025.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | California |
| County | Calaveras |
| River/Stream | Tr Bear Creek |
| Coordinates | 38.16010, -120.92990 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 16 ft |
| Dam Height | 16 ft |
| Dam Length | 1,250 ft |
| Year Completed | 1962 (64 years old) |
Storage & Hydraulics
| NID Storage | 145 acre-ft |
| Max Storage | 145 acre-ft |
| Surface Area | 26 acres |
| Drainage Area | 0 sq mi |
Ownership & Safety
| Purpose | Water Supply |
| Owner | Naki, Inc. |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 02/13/2025 |
| Emergency Action Plan | No |
Identifiers
| NID ID | CA01003 |
| Federal ID | CA01003 |
| More Info | State Dam Safety Program |