John Carl Warnecke
John Carl Warnecke is an earth dam located in Sonoma County, California, built in 1974. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About John Carl Warnecke
The primary purpose of John Carl Warnecke is water supply. The dam stores water for municipal, industrial, or agricultural use, helping ensure a reliable supply for the surrounding area. The dam is owned by Warnecke Ranch And Vineyards (private). It impounds the Tr Russian Rv.
The dam stands 32 feet tall and stretches 238 feet across, creates a reservoir covering 2 acres, has a maximum storage capacity of 30 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1974, the structure is well into its service life at over 50 years old.
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 12/18/2024.
At 32 feet, this dam is taller than 76% of dams nationwide.
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Location
| State | California |
| County | Sonoma |
| River/Stream | Tr Russian Rv |
| Coordinates | 38.60630, -122.78100 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 32 ft |
| Dam Height | 32 ft |
| Dam Length | 238 ft |
| Year Completed | 1974 (52 years old) |
Storage & Hydraulics
| NID Storage | 30 acre-ft |
| Max Storage | 30 acre-ft |
| Surface Area | 2 acres |
| Drainage Area | 0 sq mi |
Ownership & Safety
| Purpose | Water Supply |
| Owner | Warnecke Ranch and Vineyards |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 12/18/2024 |
| Emergency Action Plan | No |
Identifiers
| NID ID | CA01319 |
| Federal ID | CA01319 |
| More Info | State Dam Safety Program |