Miners Ravine Detention
Miners Ravine Detention is an earth dam located in Placer County, California, built in 2007. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About Miners Ravine Detention
The primary purpose of Miners Ravine Detention is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by Placer County Flood Control And Water Conservation District (local government). It impounds the Dry Creek.
The dam stands 23 feet tall and stretches 2,000 feet across, creates a reservoir covering 11 acres, has a maximum storage capacity of 120 acre-feet, and collects water from a drainage area of 14 square miles. Completed in 2007, the structure is relatively new.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 10/28/2025.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | California |
| County | Placer |
| River/Stream | Dry Creek |
| Coordinates | 38.75810, -121.22820 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 23 ft |
| Dam Height | 23 ft |
| Dam Length | 2,000 ft |
| Year Completed | 2007 (19 years old) |
Storage & Hydraulics
| NID Storage | 120 acre-ft |
| Max Storage | 120 acre-ft |
| Surface Area | 11 acres |
| Drainage Area | 14 sq mi |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Placer County Flood Control and Water Conservation District |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 10/28/2025 |
| Emergency Action Plan | No |
Identifiers
| NID ID | CA01531 |
| Federal ID | CA01531 |
| More Info | State Dam Safety Program |