California Park

Dead Horse Slough· Butte, California· Built 1986· Earth· 23 ft tall
High Hazard Water Supply Recreation Private

Key Takeaway

California Park is classified as high hazard in California. It was completed in 1986 and is 40 years old. Its primary use is water supply. High hazard means loss of life is likely if the dam fails — it does not indicate the dam's current condition. Learn more.

Physical Details

Dam Height 23 ft (taller than 21.2% in CA)
Dam Length2,100 ft
Dam TypeEarth
Max Storage335 acre-ft
Surface Area44 acres
Drainage Area4 sq mi
Year Completed1986 (40 years old)
NID IDCA01270

Safety Information

High Hazard

Loss of human life is likely if the dam fails.

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

Emergency Action Plan: Yes
Last Inspection: February 15, 2022
State Regulated: Yes
Regulatory Agency: DWR, Division of Safety of Dams

Ownership

California Park Association

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of California Park?

California Park is classified as High Hazard. Loss of human life is likely if the dam fails. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.

Who owns and operates California Park?

California Park is owned by California Park Association (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was California Park built?

California Park was completed in 1986, making it 40 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 California Park?

California Park 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 California Park?

California Park has a dam height of 23 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 California Park last inspected?

California Park was last inspected on February 15, 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.