Terminal

Tr Arroyo Grande· San Luis Obispo, California· Built 1969· Earth· 53 ft tall
High Hazard Water Supply Local Government

Key Takeaway

Terminal is classified as high hazard in California. It was completed in 1969 and is 57 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 53 ft (taller than 62.2% in CA)
Dam Length550 ft
Dam TypeEarth
Max Storage844 acre-ft
Surface Area37 acres
Drainage Area1 sq mi
Year Completed1969 (57 years old)
NID IDCA00888

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: January 26, 2022
State Regulated: Yes
Regulatory Agency: DWR, Division of Safety of Dams

Ownership

San Luis Obispo County Flood Control and Water Conservation District

Local Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Terminal?

Terminal 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 Terminal?

Terminal is owned by San Luis Obispo County Flood Control and Water Conservation District (Local Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Terminal built?

Terminal was completed in 1969, making it 57 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 Terminal?

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

How tall is Terminal?

Terminal has a dam height of 53 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 Terminal last inspected?

Terminal was last inspected on January 26, 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.