Lake La Verne is an earth dam located in Napa County, California, built in 1956. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
Dam profile
NID height · 50 ft50 ft tall and 255 ft long, taller than 92% of U.S. dams with a recorded height. Height is drawn to scale against a ten-story building, about 100 ft; the profile is a generic embankment section and the water level is illustrative.
About Lake La Verne
The primary purpose of Lake La Verne 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 Clinton and Nancy Pridmore (private). It impounds the Tr Capell Creek.
The dam stands 50 feet tall and stretches 255 feet across, creates a reservoir covering 4 acres, has a maximum storage capacity of 54 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1956, the structure is well into its service life at over 50 years old.
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. An emergency action plan is in place for this dam. The most recent inspection on record was 06/05/2025.
At 50 feet, this dam is taller than 92% of dams nationwide.
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Location
| State | California |
| County | Napa |
| River/Stream | Tr Capell Creek |
| Coordinates | 38.46100, -122.20790 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 50 ft |
| Dam Height | 50 ft |
| Dam Length | 255 ft |
| Year Completed | 1956 (70 years old) |
Storage & Hydraulics
| NID Storage | 54 acre-ft |
| Max Storage | 54 acre-ft |
| Surface Area | 4 acres |
| Drainage Area | 0 sq mi |
Ownership & Safety
| Purpose | Water Supply |
| Owner | Clinton and Nancy Pridmore |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 06/05/2025 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | CA00983 |
| Federal ID | CA00983 |
| More Info | State Dam Safety Program |