Spring Valley Ranch
Spring Valley Ranch is an earth dam located in Placer County, California, built in 1958. It carries a High hazard potential classification and has a satisfactory condition assessment.
About Spring Valley Ranch
Spring Valley Ranch is a dam in Placer, California. The dam is owned by Spring Valley Dam Homeowner's Association (private). It impounds the Tr Campbell Cr near Colfax.
The dam stands 39 feet tall and stretches 350 feet across, creates a reservoir covering 6 acres, and has a maximum storage capacity of 60 acre-feet. Completed in 1958, the structure is well into its service life at over 50 years old.
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 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 10/16/2025.
At 39 feet, this dam is taller than 86% of dams nationwide.
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 | Placer |
| Nearest City | Colfax |
| River/Stream | Tr Campbell Cr |
| Coordinates | 39.09880, -120.97080 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 39 ft |
| Dam Height | 39 ft |
| Dam Length | 350 ft |
| Year Completed | 1958 (68 years old) |
Storage & Hydraulics
| NID Storage | 60 acre-ft |
| Max Storage | 60 acre-ft |
| Surface Area | 6 acres |
Ownership & Safety
| Purpose | Other |
| Owner | Spring Valley Dam Homeowner's Association |
| Owner Type | Private |
| Hazard Classification | High |
| Condition Assessment | Satisfactory |
| Last Inspection | 10/16/2025 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | CA00968 |
| Federal ID | CA00968 |
| More Info | State Dam Safety Program |