Lake Curry
Lake Curry is an earth dam located in Napa County, California, built in 1926. It carries a High hazard potential classification and has a poor condition assessment.
About Lake Curry
Lake Curry is a dam in Napa, California. The dam is owned by City Of Vallejo (local government). It impounds the Gordon Valley Cr near Rockville.
The dam stands 107 feet tall and stretches 572 feet across, creates a reservoir covering 377 acres, has a maximum storage capacity of 10,700 acre-feet, and collects water from a drainage area of 17 square miles. Completed in 1926, the structure is well-established, with more than 75 years of service.
This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream. Its condition is rated poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. An emergency action plan is in place for this dam. The most recent inspection on record was 09/30/2025.
At 107 feet, this dam is taller than 98% of all dams in the United States.
Living Downstream
If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The California dam safety program can provide more specific information about emergency planning for this structure.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | California |
| County | Napa |
| Nearest City | Rockville |
| River/Stream | Gordon Valley Cr |
| Coordinates | 38.35740, -122.12580 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 107 ft |
| Dam Height | 107 ft |
| Dam Length | 572 ft |
| Year Completed | 1926 (100 years old) |
Storage & Hydraulics
| NID Storage | 10,700 acre-ft |
| Max Storage | 10,700 acre-ft |
| Surface Area | 377 acres |
| Drainage Area | 17 sq mi |
Ownership & Safety
| Purpose | Other |
| Owner | City of Vallejo |
| Owner Type | Local Government |
| Hazard Classification | High |
| Condition Assessment | Poor |
| Last Inspection | 09/30/2025 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | CA00140 |
| Federal ID | CA00140 |
| More Info | State Dam Safety Program |