Cajalco Creek

Cajalco Creek· Riverside, California· Built 2001· Earth· 46 ft tall
Significant Hazard Debris Control Water Supply Public Utility

Key Takeaway

Cajalco Creek is classified as significant hazard in California. It was completed in 2001 and is 25 years old. Its primary use is debris control. Significant hazard means failure could cause economic or environmental damage. Learn more.

Physical Details

Dam Height 46 ft (taller than 55.4% in CA)
Dam Length2,287 ft
Dam TypeEarth
Max Storage889 acre-ft
Surface Area74 acres
Year Completed2001 (25 years old)
NID IDCA01441

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 15, 2021
State Regulated: Yes
Regulatory Agency: DWR, Division of Safety of Dams

Ownership

Metropolitan Water District Of Southern California

Public Utility

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Cajalco Creek?

Cajalco Creek 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 Cajalco Creek?

Cajalco Creek is owned by Metropolitan Water District Of Southern California (Public Utility). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Cajalco Creek built?

Cajalco Creek was completed in 2001, making it 25 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 Cajalco Creek?

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

How tall is Cajalco Creek?

Cajalco Creek has a dam height of 46 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 Cajalco Creek last inspected?

Cajalco Creek was last inspected on December 15, 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.