Samaria No 1 Lower

MALAD RIVER BEAR RIVER· Oneida, Idaho· Built 1934· 35 ft tall
Significant Hazard Other Private

Key Takeaway

Samaria No 1 Lower is classified as significant hazard in Idaho. It was completed in 1934 and is 92 years old. Its primary use is other. Significant hazard means failure could cause economic or environmental damage. Learn more.

Physical Details

Dam Height 35 ft (taller than 64.3% in ID)
Dam Length500 ft
Normal Storage559 acre-ft
Surface Area40 acres
Drainage Area7 sq mi
Max Discharge144 cfs
Year Completed1934 (92 years old)
NID IDID00003

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 1 Lower?

Samaria No 1 Lower 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 1 Lower?

Samaria No 1 Lower is owned by information not available (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Samaria No 1 Lower built?

Samaria No 1 Lower was completed in 1934, making it 92 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 1 Lower?

Samaria No 1 Lower 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 1 Lower?

Samaria No 1 Lower has a dam height of 35 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 1 Lower last inspected?

Samaria No 1 Lower 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.