Anderson-Rose Diversion

LOST RIVER· Klamath, Oregon· Built 1921· Buttress· 16 ft tall
Low Hazard Irrigation Federal Government

Key Takeaway

Anderson-Rose Diversion is classified as low hazard in Oregon. It was completed in 1921 and is 105 years old. Its primary use is irrigation.

Physical Details

Dam Height 16 ft (taller than 20.1% in OR)
Dam Length324 ft
Dam TypeButtress
Max Storage450 acre-ft
Normal Storage450 acre-ft
Surface Area119 acres
Max Discharge10,000 cfs
Year Completed1921 (105 years old)
NID IDOR00585

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 18, 2020
State Regulated: No

Ownership

RECLAMATION

Federal Government

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Anderson-Rose Diversion?

Anderson-Rose Diversion 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 Anderson-Rose Diversion?

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

When was Anderson-Rose Diversion built?

Anderson-Rose Diversion was completed in 1921, making it 105 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 Anderson-Rose Diversion?

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

How tall is Anderson-Rose Diversion?

Anderson-Rose Diversion has a dam height of 16 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 Anderson-Rose Diversion last inspected?

Anderson-Rose Diversion was last inspected on June 18, 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.