South Fork 11-1

South Fork 11-1 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 11-1

South Fork 11-1 is a dam in Pawnee, Nebraska. The dam is owned by Nemaha Natural Resources District (local government). It impounds the Tr-lores Br S Fk Big Nemaha R near Dubois.

The dam stands 32 feet tall and stretches 727 feet across, creates a reservoir covering 6 acres, has a maximum storage capacity of 72 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 06/18/2020.

At 32 feet, this dam is taller than 76% of dams nationwide.

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Low HazardSatisfactory ConditionEmergency Action Plan: Not Required

Location

StateNebraska
CountyPawnee
Nearest CityDubois
River/StreamTr-lores Br S Fk Big Nemaha R
Coordinates40.06460, -96.07540

Physical Characteristics

Dam TypeEarth
NID Height32 ft
Dam Height30 ft
Dam Length727 ft
Year Completed1978 (48 years old)

Storage & Hydraulics

NID Storage72 acre-ft
Max Storage72 acre-ft
Normal Storage36 acre-ft
Surface Area6 acres
Drainage Area0 sq mi
Max Discharge174 cfs

Ownership & Safety

PurposeOther
OwnerNemaha Natural Resources District
Owner TypeLocal Government
Hazard ClassificationLow
Condition AssessmentSatisfactory
Last Inspection06/18/2020
Emergency Action PlanNot Required

Identifiers

NID IDNE01636
Federal IDNE01636
More InfoState Dam Safety Program

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