Hooper No. 2

Tr Mcdowell Creek· Mendocino, California· Earth· 13 ft tall
Significant Hazard Irrigation Private

Key Takeaway

Hooper No. 2 is classified as significant hazard in California. Its primary use is irrigation. Significant hazard means failure could cause economic or environmental damage. Learn more.

Physical Details

Dam Height 13 ft (taller than 5.6% in CA)
Dam Length510 ft
Dam TypeEarth
Max Storage33 acre-ft
Surface Area8 acres
NID IDCA01439

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: No
Last Inspection: April 20, 2022
State Regulated: No

Ownership

Hooper Ranch, LLC

Private

Nearby Dams

Hooper No. 1

Mendocino, CA

Significant Hazard 13 ft

Crawford Ranch

Mendocino, CA

High Hazard 80 ft

Peters

Lake, CA

Low Hazard 32 ft

Cornett

Mendocino, CA

Significant Hazard 31 ft

Bradford

Mendocino, CA

Significant Hazard 58 ft

Codding Reservoir

Mendocino, CA

Low Hazard 36 ft

Graham

Lake, CA

Low Hazard 39 ft

Johnson Ranch

Mendocino, CA

High Hazard 26 ft

Frequently Asked Questions

What is the hazard classification of Hooper No. 2?

Hooper No. 2 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 Hooper No. 2?

Hooper No. 2 is owned by Hooper Ranch, LLC (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

What is the primary purpose of Hooper No. 2?

Hooper No. 2 serves the following purposes: Irrigation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Hooper No. 2?

Hooper No. 2 has a dam height of 13 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 Hooper No. 2 last inspected?

Hooper No. 2 was last inspected on April 20, 2022. 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.