Friant

SAN JOAQUIN RIVER· Madera, California· Built 1942· Concrete· 299 ft tall
High Hazard Flood Risk Reduction Irrigation Recreation Water Supply Federal Government

Key Takeaway

Friant is classified as high hazard in California. It was completed in 1942 and is 84 years old. Its primary use is flood risk reduction. 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 299 ft (taller than 98.2% in CA)
Dam Length3,488 ft
Dam TypeConcrete
Max Storage555.5K acre-ft
Normal Storage520.5K acre-ft
Surface Area4,900 acres
Drainage Area1,633 sq mi
Max Discharge0 cfs
Year Completed1942 (84 years old)
NID IDCA10154

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 1, 2020
State Regulated: No

Ownership

RECLAMATION

Federal Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Friant?

Friant 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 Friant?

Friant is owned by RECLAMATION (Federal Government). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Friant built?

Friant was completed in 1942, making it 84 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 Friant?

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

How tall is Friant?

Friant has a dam height of 299 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 Friant last inspected?

Friant was last inspected on September 1, 2020. 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.