South Fork 4-2

South Fork 4-2 is an earth dam located in Pawnee County, Nebraska, built in 1978. It carries a Low hazard potential classification and has a satisfactory condition assessment.

About South Fork 4-2

South Fork 4-2 is a dam in Pawnee, Nebraska. The dam is owned by Nemaha Natural Resources District (local government). It impounds the Tr-s Fk Big Nemaha River near Salem.

The dam stands 35 feet tall and stretches 1,027 feet across, creates a reservoir covering 16 acres, has a maximum storage capacity of 332 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1978, the structure is 48 years old.

This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 05/07/2021.

At 35 feet, this dam is taller than 82% of dams nationwide.

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Low HazardSatisfactory ConditionEmergency Action Plan: Not Required

Location

StateNebraska
CountyPawnee
Nearest CitySalem
River/StreamTr-s Fk Big Nemaha River
Coordinates40.06653, -96.05783

Physical Characteristics

Dam TypeEarth
NID Height35 ft
Dam Height35 ft
Dam Length1,027 ft
Year Completed1978 (48 years old)

Storage & Hydraulics

NID Storage332 acre-ft
Max Storage332 acre-ft
Normal Storage110 acre-ft
Surface Area16 acres
Drainage Area0 sq mi
Max Discharge511 cfs

Ownership & Safety

PurposeOther
OwnerNemaha Natural Resources District
Owner TypeLocal Government
Hazard ClassificationLow
Condition AssessmentSatisfactory
Last Inspection05/07/2021
Emergency Action PlanNot Required

Identifiers

NID IDNE01660
Federal IDNE01660
More InfoState Dam Safety Program

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