Upper Big Nemaha 21-b

Low HazardSatisfactory ConditionEmergency Action Plan: Not Required

Location

StateNebraska
CountyLancaster
Nearest CitySTERLING
River/StreamTR-N FK BIG NEMAHA RIVER
Coordinates40.54044, -96.48624

Physical Characteristics

Dam TypeEarth
NID Height42 ft
Dam Height42 ft
Dam Length1,440 ft
Year Completed1973 (53 years old)

Storage & Hydraulics

NID Storage1,890 acre-ft
Max Storage1,890 acre-ft
Normal Storage337 acre-ft
Surface Area54 acres
Drainage Area5 sq mi
Max Discharge787 cfs

Ownership & Safety

PurposeFlood Risk Reduction
OwnerNemaha Natural Resources District
Owner TypeLocal Government
Hazard ClassificationLow
Condition AssessmentSatisfactory
Last Inspection04/27/2022
Emergency Action PlanNot Required

Identifiers

NID IDNE01217
Federal IDNE01217
More InfoState Dam Safety Program

Nearby Dams

Upper Big Nemaha L-10 1.2 mi Low Upper Big Nemaha G-23 1.3 mi Low Upper Big Nemaha L-12 1.3 mi Low Miller Grade Stabilization Dam 1.7 mi Low Upper Big Nemaha 21-a 1.8 mi Low Upper Big Nemaha G-15 1.9 mi Low Upper Big Nemaha 20-b 2.7 mi Low South Branch 1-6 3.1 mi Low Upper Big Nemaha G-16a 3.1 mi Low Upper Big Nemaha 20-a 3.1 mi Low