Searsville

Corte Madera Cr· San Mateo, California· Built 1890· Gravity· 68 ft tall
High Hazard Water Supply Irrigation Private

Key Takeaway

Searsville is classified as high hazard in California. It was completed in 1890 and is 136 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 68 ft (taller than 72.2% in CA)
Dam Length260 ft
Dam TypeGravity
Max Storage1.8K acre-ft
Surface Area90 acres
Drainage Area15 sq mi
Year Completed1890 (136 years old)
NID IDCA00669

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: November 2, 2021
State Regulated: Yes
Regulatory Agency: DWR, Division of Safety of Dams

Ownership

Stanford University Board of Trustees

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Searsville?

Searsville 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 Searsville?

Searsville is owned by Stanford University Board of Trustees (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Searsville built?

Searsville was completed in 1890, making it 136 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 Searsville?

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

How tall is Searsville?

Searsville has a dam height of 68 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 Searsville last inspected?

Searsville was last inspected on November 2, 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.