Scotts Canyon is an earth dam located in Napa County, California, built in 1948. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
Dam profile
NID height · 41 ft41 ft tall and 320 ft long, taller than 87% 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 Scotts Canyon
Scotts Canyon is a dam in Napa, California. The dam is owned by Stephen Juelsgaard (private). It impounds the Tr Carneros Creek.
The dam stands 41 feet tall and stretches 320 feet across, creates a reservoir covering 3 acres, has a maximum storage capacity of 58 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1948, the structure is well-established, with more than 75 years of service.
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 09/22/2025.
At 41 feet, this dam is taller than 87% of dams nationwide.
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Location
| State | California |
| County | Napa |
| River/Stream | Tr Carneros Creek |
| Coordinates | 38.29660, -122.36250 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 41 ft |
| Dam Height | 41 ft |
| Dam Length | 320 ft |
| Year Completed | 1948 (78 years old) |
Storage & Hydraulics
| NID Storage | 58 acre-ft |
| Max Storage | 58 acre-ft |
| Surface Area | 3 acres |
| Drainage Area | 0 sq mi |
Ownership & Safety
| Purpose | Other |
| Owner | Stephen Juelsgaard |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 09/22/2025 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | CA00584 |
| Federal ID | CA00584 |
| More Info | State Dam Safety Program |