Jurupa Basin

Jurupa Wash· Riverside, California· Built 1983· Earth· 22 ft tall
High Hazard Flood Risk Reduction Local Government

Key Takeaway

Jurupa Basin is classified as high hazard in California. It was completed in 1983 and is 43 years old. Its primary use is flood risk reduction. 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 22 ft (taller than 18.8% in CA)
Dam Length1,350 ft
Dam TypeEarth
Max Storage167 acre-ft
Surface Area17 acres
Year Completed1983 (43 years old)
NID IDCA01212

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: April 21, 2022
State Regulated: Yes
Regulatory Agency: DWR, Division of Safety of Dams

Ownership

Riverside County Flood Control and Water Conservation District

Local Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Jurupa Basin?

Jurupa Basin 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 Jurupa Basin?

Jurupa Basin is owned by Riverside County Flood Control and Water Conservation District (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Jurupa Basin built?

Jurupa Basin was completed in 1983, making it 43 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 Jurupa Basin?

Jurupa Basin serves the following purposes: Flood Risk Reduction. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Jurupa Basin?

Jurupa Basin has a dam height of 22 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 Jurupa Basin last inspected?

Jurupa Basin was last inspected on April 21, 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.