Chinquapin
Key Takeaway
Chinquapin is classified as significant hazard in California. It was completed in 1971 and is 55 years old. Its primary use is water supply. Significant hazard means failure could cause economic or environmental damage. Learn more.
Physical Details
| Dam Height | 49 ft (taller than 57.9% in CA) |
| Dam Length | 285 ft |
| Dam Type | Earth |
| Max Storage | 45 acre-ft |
| Surface Area | 4 acres |
| Drainage Area | 1 sq mi |
| Year Completed | 1971 (55 years old) |
| NID ID | CA00975 |
Safety Information
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?
Ownership
County of Mendocino
Local Government
Nearby Dams
Morris
Mendocino, CA
High Hazard 66 ftCentennial
Mendocino, CA
High Hazard 62 ftScout Lake
Mendocino, CA
High Hazard 63 ftRidgewood
Mendocino, CA
Low Hazard 44 ftLake Ada Rose
Mendocino, CA
High Hazard 50 ftBrooktrails 3 North
Mendocino, CA
High Hazard 49 ftLolonis Vineyards
Mendocino, CA
High Hazard 67 ftBevans Creek
Mendocino, CA
High Hazard 51 ftFrequently Asked Questions
What is the hazard classification of Chinquapin?
Chinquapin 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 Chinquapin?
Chinquapin is owned by County of Mendocino (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.
When was Chinquapin built?
Chinquapin was completed in 1971, making it 55 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 Chinquapin?
Chinquapin serves the following purposes: Water Supply, Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.
How tall is Chinquapin?
Chinquapin has a dam height of 49 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 Chinquapin last inspected?
Chinquapin was last inspected on October 19, 2021. Inspection dates indicate when a formal review occurred, not the results of that inspection.