King Ridge Road
King Ridge Road is an earth dam located in Sonoma County, California. It carries a Low hazard potential classification and has a fair condition assessment.
About King Ridge Road
The primary purpose of King Ridge Road is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Robert Mann (private). It impounds the Creek Tr To Pepperwood Creek.
The dam stands 52 feet tall and stretches 500 feet across, creates a reservoir covering 13 acres, and has a maximum storage capacity of 160 acre-feet.
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 fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. The most recent inspection on record was 05/15/2025.
At 52 feet, this dam is taller than 93% of dams nationwide.
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Location
| State | California |
| County | Sonoma |
| River/Stream | Creek Tr To Pepperwood Creek |
| Coordinates | 38.61429, -123.20662 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 52 ft |
| Dam Height | 52 ft |
| Dam Length | 500 ft |
Storage & Hydraulics
| NID Storage | 160 acre-ft |
| Max Storage | 160 acre-ft |
| Surface Area | 13 acres |
Ownership & Safety
| Purpose | Irrigation |
| Owner | Robert Mann |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 05/15/2025 |
| Emergency Action Plan | No |
Identifiers
| NID ID | CA01554 |
| Federal ID | CA01554 |
| More Info | State Dam Safety Program |