Cornett
Cornett is an earth dam located in Mendocino County, California, built in 1974. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
About Cornett
The primary purpose of Cornett 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 Locavore, Llc (private). It impounds the Tr Russian Rv.
The dam stands 31 feet tall and stretches 455 feet across, creates a reservoir covering 6 acres, has a maximum storage capacity of 65 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 significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. 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 04/16/2025.
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Location
| State | California |
| County | Mendocino |
| River/Stream | Tr Russian Rv |
| Coordinates | 38.96610, -123.08990 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 31 ft |
| Dam Height | 31 ft |
| Dam Length | 455 ft |
| Year Completed | 1974 (52 years old) |
Storage & Hydraulics
| NID Storage | 65 acre-ft |
| Max Storage | 65 acre-ft |
| Surface Area | 6 acres |
| Drainage Area | 0 sq mi |
Ownership & Safety
| Purpose | Water Supply |
| Owner | Locavore, LLC |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 04/16/2025 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | CA01118 |
| Federal ID | CA01118 |
| More Info | State Dam Safety Program |