Ward Lake
Ward Lake is an earth dam located in Lassen County, California, built in 1889. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About Ward Lake
The primary purpose of Ward Lake 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 R. And H. Leasing (private). It impounds the Tr Susan River.
The dam stands 23 feet tall and stretches 800 feet across, creates a reservoir covering 60 acres, has a maximum storage capacity of 350 acre-feet, and collects water from a drainage area of 2 square miles. Completed in 1889, the structure is over a century 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 06/18/2025.
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Location
| State | California |
| County | Lassen |
| River/Stream | Tr Susan River |
| Coordinates | 40.40710, -120.43620 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 23 ft |
| Dam Height | 23 ft |
| Dam Length | 800 ft |
| Year Completed | 1889 (137 years old) |
Storage & Hydraulics
| NID Storage | 350 acre-ft |
| Max Storage | 350 acre-ft |
| Surface Area | 60 acres |
| Drainage Area | 2 sq mi |
Ownership & Safety
| Purpose | Water Supply |
| Owner | R. and H. Leasing |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 06/18/2025 |
| Emergency Action Plan | No |
Identifiers
| NID ID | CA00508 |
| Federal ID | CA00508 |
| More Info | State Dam Safety Program |