Koskella

UNNAMED STREAM NORTH FORK PAYETTE RIVER· Valley, Idaho· Built 1947· 24 ft tall
Low Hazard Irrigation Private

Key Takeaway

Koskella is classified as low hazard in Idaho. It was completed in 1947 and is 79 years old. Its primary use is irrigation.

Physical Details

Dam Height 24 ft (taller than 40.9% in ID)
Dam Length310 ft
Normal Storage74 acre-ft
Surface Area12 acres
Drainage Area0 sq mi
Max Discharge55 cfs
Year Completed1947 (79 years old)
NID IDID00119

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: November 3, 2016
State Regulated: Yes
Regulatory Agency: IDWR

Ownership

Private

Nearby Dams

Yanke

Valley, ID

Low Hazard 29 ft

Eld

Valley, ID

Low Hazard 19 ft

Brown

Valley, ID

Low Hazard 21 ft

Smalley

Valley, ID

Low Hazard 35 ft

Pine Lake

Valley, ID

Low Hazard 17 ft

Jemima K

Valley, ID

Significant Hazard 71 ft

Hughes

Valley, ID

Significant Hazard 43 ft

Tom J Dike

Valley, ID

Significant Hazard 27 ft

Frequently Asked Questions

What is the hazard classification of Koskella?

Koskella 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 Koskella?

Koskella is owned by information not available (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Koskella built?

Koskella was completed in 1947, making it 79 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 Koskella?

Koskella 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 Koskella?

Koskella has a dam height of 24 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 Koskella last inspected?

Koskella was last inspected on November 3, 2016. 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.