Danville

Offstream· Contra Costa, California· Built 1961· Earth· 75 ft tall
High Hazard Water Supply Public Utility

Key Takeaway

Danville is classified as high hazard in California. It was completed in 1961 and is 65 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 75 ft (taller than 74.5% in CA)
Dam Length765 ft
Dam TypeEarth
Max Storage45 acre-ft
Surface Area3 acres
Drainage Area0 sq mi
Year Completed1961 (65 years old)
NID IDCA00184

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: September 8, 2022
State Regulated: Yes
Regulatory Agency: DWR, Division of Safety of Dams

Ownership

East Bay Municipal Utility District

Public Utility

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Danville?

Danville 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 Danville?

Danville is owned by East Bay Municipal Utility District (Public Utility). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Danville built?

Danville was completed in 1961, making it 65 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 Danville?

Danville 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 Danville?

Danville has a dam height of 75 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 Danville last inspected?

Danville was last inspected on September 8, 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.