Fredonia

Tr Pine Creek· Lassen, California· Built 1914· Earth· 27 ft tall
Low Hazard Water Supply Irrigation Private

Key Takeaway

Fredonia is classified as low hazard in California. It was completed in 1914 and is 112 years old. Its primary use is water supply.

Physical Details

Dam Height 27 ft (taller than 26.1% in CA)
Dam Length180 ft
Dam TypeEarth
Max Storage300 acre-ft
Surface Area20 acres
Drainage Area2 sq mi
Year Completed1914 (112 years old)
NID IDCA00523

Safety Information

Low Hazard

No probable loss of human life and low economic/environmental losses expected.

Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?

Emergency Action Plan: No
Last Inspection: June 29, 2022
State Regulated: Yes
Regulatory Agency: DWR, Division of Safety of Dams

Ownership

Mapes Ranch, Inc.

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Fredonia?

Fredonia is classified as Low Hazard. No probable loss of human life and low economic/environmental losses expected. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.

Who owns and operates Fredonia?

Fredonia is owned by Mapes Ranch, Inc. (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Fredonia built?

Fredonia was completed in 1914, making it 112 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 Fredonia?

Fredonia 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 Fredonia?

Fredonia has a dam height of 27 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 Fredonia last inspected?

Fredonia was last inspected on June 29, 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.