Buffalo River

Buffalo River, Henrys Fork, Sn· Fremont, Idaho· Built 1936· Rockfill· 10 ft tall
Low Hazard Hydroelectric Private

Key Takeaway

Buffalo River is classified as low hazard in Idaho. It was completed in 1936 and is 90 years old. Its primary use is hydroelectric.

Physical Details

Dam Height 10 ft (taller than 2.1% in ID)
Dam Length142 ft
Dam TypeRockfill
Max Storage60 acre-ft
Normal Storage50 acre-ft
Surface Area5 acres
Drainage Area35 sq mi
Max Discharge500 cfs
Year Completed1936 (90 years old)
NID IDID06068

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 5, 2017
State Regulated: Yes
Regulatory Agency: IDWR

Ownership

Buffalo Hydro, Inc.

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Buffalo River?

Buffalo River 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 Buffalo River?

Buffalo River is owned by Buffalo Hydro, Inc. (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Buffalo River built?

Buffalo River was completed in 1936, making it 90 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 Buffalo River?

Buffalo River serves the following purposes: Hydroelectric. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Buffalo River?

Buffalo River has a dam height of 10 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 Buffalo River last inspected?

Buffalo River was last inspected on June 5, 2017. 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.