Samaria No 2 Upper

MALAD RIVER BEAR RIVER· Oneida, Idaho· Built 1947· 46 ft tall
Significant Hazard Other Private

Key Takeaway

Samaria No 2 Upper is classified as significant hazard in Idaho. It was completed in 1947 and is 79 years old. Its primary use is other. Significant hazard means failure could cause economic or environmental damage. Learn more.

Physical Details

Dam Height 46 ft (taller than 76.3% in ID)
Dam Length390 ft
Normal Storage700 acre-ft
Surface Area47 acres
Drainage Area7 sq mi
Max Discharge130 cfs
Year Completed1947 (79 years old)
NID IDID00004

Safety Information

Significant Hazard

No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities.

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

Emergency Action Plan: No
Last Inspection: May 16, 2017
State Regulated: Yes
Regulatory Agency: IDWR

Ownership

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Samaria No 2 Upper?

Samaria No 2 Upper is classified as Significant Hazard. No probable loss of human life, but can cause economic loss, environmental damage, or disruption of lifeline facilities. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.

Who owns and operates Samaria No 2 Upper?

Samaria No 2 Upper is owned by information not available (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Samaria No 2 Upper built?

Samaria No 2 Upper 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 Samaria No 2 Upper?

Samaria No 2 Upper serves the following purposes: Other. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Samaria No 2 Upper?

Samaria No 2 Upper has a dam height of 46 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 Samaria No 2 Upper last inspected?

Samaria No 2 Upper was last inspected on May 16, 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.