Wallace is an earth dam located in Calaveras County, California. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
Dam profile
NID height · 29 ft29 ft tall and 700 ft long, taller than 65% of U.S. dams with a recorded height. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About Wallace
The primary purpose of Wallace 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 Wallace Community Services District Operations and Maintenance (public utility). It impounds the Tr Bear Creek.
The dam stands 29 feet tall and stretches 700 feet across, creates a reservoir covering 52 acres, has a maximum storage capacity of 410 acre-feet, and collects water from a drainage area of 1 square miles.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in 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 09/25/2024.
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Location
| State | California |
| County | Calaveras |
| River/Stream | Tr Bear Creek |
| Coordinates | 38.19480, -120.97250 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 29 ft |
| Dam Height | 29 ft |
| Dam Length | 700 ft |
Storage & Hydraulics
| NID Storage | 410 acre-ft |
| Max Storage | 410 acre-ft |
| Surface Area | 52 acres |
| Drainage Area | 1 sq mi |
Ownership & Safety
| Purpose | Water Supply |
| Owner | Wallace Community Services District Operations and Maintenance |
| Owner Type | Public Utility |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 09/25/2024 |
| Emergency Action Plan | No |
Identifiers
| NID ID | CA01314 |
| Federal ID | CA01314 |
| More Info | State Dam Safety Program |