Samaria No 2 Upper

Samaria No 2 Upper is a dam located in Oneida County, Idaho, built in 1947. It carries a Significant hazard potential classification and has a fair condition assessment.

Hazard potentialSignificantFailure could cause major damage
ConditionFair2nd of 4 ratings
Emergency action planNot reported
Last inspection05/16/2017
Height46 ft
Built194779 years ago

Dam profile

NID height · 46 ft
46 FT TEN-STORY BUILDINGMEDIAN U.S. DAM · 24 FT

46 ft tall and 390 ft long, taller than 91% of U.S. dams with a recorded height. Height is drawn to scale against a ten-story building, about 100 ft; the profile is a generic embankment section and the water level is illustrative.

About Samaria No 2 Upper

Samaria No 2 Upper is a dam in Oneida, Idaho. The dam is private-owned. It impounds the Malad River Bear River near Pleasantview.

The dam stands 46 feet tall and stretches 390 feet across, creates a reservoir covering 47 acres, has a storage capacity of 700 acre-feet, and collects water from a drainage area of 6 square miles. Completed in 1947, the structure is well-established, with more than 75 years of service.

This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. Its condition is rated fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. The most recent inspection on record was 05/16/2017.

At 46 feet, this dam is taller than 91% of dams nationwide.

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Location

StateIdaho
CountyOneida
Nearest CityPleasantview
River/StreamMalad River Bear River
Coordinates42.20610, -112.36640

Physical Characteristics

NID Height46 ft
Dam Height46 ft
Dam Length390 ft
Year Completed1947 (79 years old)

Storage & Hydraulics

NID Storage700 acre-ft
Normal Storage700 acre-ft
Surface Area47 acres
Drainage Area6 sq mi
Max Discharge130 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeOther
Owner TypePrivate
Hazard ClassificationSignificant
Condition AssessmentFair
Last Inspection05/16/2017
Emergency Action PlanNot Required

Identifiers

NID IDID00004
Federal IDID00004
More InfoState Dam Safety Program