Scotts Flat
Scotts Flat is an earth dam located in Nevada County, California, built in 1948. It carries a High hazard potential classification and has a fair condition assessment.
About Scotts Flat
The primary purpose of Scotts Flat is fire protection, stock, or small fish pond. The dam maintains a small impoundment used for fire suppression, livestock watering, or as a fish pond. The dam is owned by Nevada Irrigation District (public utility). It impounds the Deer Creek near Nevada City.
The dam stands 175 feet tall and stretches 960 feet across, creates a reservoir covering 725 acres, has a storage capacity of 49,000 acre-feet, and collects water from a drainage area of 20 square miles. Completed in 1948, 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 fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. An emergency action plan is in place for this dam. The most recent inspection on record was 08/24/2023.
At 175 feet, this dam is taller than 99% 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 | Nevada |
| Nearest City | Nevada City |
| River/Stream | Deer Creek |
| Coordinates | 39.27260, -120.93092 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 175 ft |
| Dam Height | 175 ft |
| Dam Length | 960 ft |
| Year Completed | 1948 (78 years old) |
Storage & Hydraulics
| NID Storage | 49,000 acre-ft |
| Normal Storage | 49,000 acre-ft |
| Surface Area | 725 acres |
| Drainage Area | 20 sq mi |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | Nevada Irrigation District |
| Owner Type | Public Utility |
| Hazard Classification | High |
| Condition Assessment | Fair |
| Last Inspection | 08/24/2023 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | CA00253 |
| Federal ID | CA00253 |
| More Info | State Dam Safety Program |