Cornett

Tr Russian Rv· Mendocino, California· Built 1974· Earth· 31 ft tall
Significant Hazard Water Supply Private

Key Takeaway

Cornett is classified as significant hazard in California. It was completed in 1974 and is 52 years old. Its primary use is water supply. Significant hazard means failure could cause economic or environmental damage. Learn more.

Physical Details

Dam Height 31 ft (taller than 32.8% in CA)
Dam Length455 ft
Dam TypeEarth
Max Storage65 acre-ft
Surface Area6 acres
Drainage Area0 sq mi
Year Completed1974 (52 years old)
NID IDCA01118

Safety Information

Significant Hazard

No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities.

Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?

Emergency Action Plan: Yes
Last Inspection: December 1, 2021
State Regulated: Yes
Regulatory Agency: DWR, Division of Safety of Dams

Ownership

Locavore, LLC

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Cornett?

Cornett is classified as Significant Hazard. No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.

Who owns and operates Cornett?

Cornett is owned by Locavore, LLC (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Cornett built?

Cornett was completed in 1974, making it 52 years old. Many U.S. dams were built between the 1930s and 1970s during a period of major infrastructure investment.

What is the primary purpose of Cornett?

Cornett serves the following purposes: Water Supply. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Cornett?

Cornett has a dam height of 31 ft. Dam height is measured from the natural streambed at the downstream toe to the top of the dam, and may differ from the visible height.

When was Cornett last inspected?

Cornett was last inspected on December 1, 2021. Inspection dates indicate when a formal review occurred, not the results of that inspection.

Data from the National Inventory of Dams (NID) maintained by the US Army Corps of Engineers. Dam conditions may have changed since the last update. This site is not affiliated with USACE. Do not use for emergency planning — contact your local dam safety program.