Bridgeport

East Walker Rv· Mono, California· Built 1924· Earth· 63 ft tall
High Hazard Water Supply Irrigation Recreation Public Utility

Key Takeaway

Bridgeport is classified as high hazard in California. It was completed in 1924 and is 102 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 63 ft (taller than 69.2% in CA)
Dam Length900 ft
Dam TypeEarth
Max Storage44.1K acre-ft
Surface Area3,125 acres
Drainage Area356 sq mi
Year Completed1924 (102 years old)
NID IDCA00284

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 2, 2022
State Regulated: Yes
Regulatory Agency: DWR, Division of Safety of Dams

Ownership

Walker River Irrigation District

Public Utility

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Bridgeport?

Bridgeport 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 Bridgeport?

Bridgeport is owned by Walker River Irrigation District (Public Utility). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Bridgeport built?

Bridgeport was completed in 1924, making it 102 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 Bridgeport?

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

How tall is Bridgeport?

Bridgeport has a dam height of 63 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 Bridgeport last inspected?

Bridgeport was last inspected on February 2, 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.