Walnut Creek 4

Walnut Creek 4 is an earth dam located in Lancaster County, Nebraska, built in 1982. It carries a Significant hazard potential classification and has a satisfactory condition assessment.

About Walnut Creek 4

The primary purpose of Walnut Creek 4 is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Lower Big Blue Natural Resources District (local government). It impounds the Walnut Creek near Crete.

The dam stands 31 feet tall and stretches 790 feet across, creates a reservoir covering 15 acres, has a maximum storage capacity of 413 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1982, the structure is 44 years old.

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 satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 04/21/2022.

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Significant HazardSatisfactory ConditionEmergency Action Plan: Not Required

Location

StateNebraska
CountyLancaster
Nearest CityCrete
River/StreamWalnut Creek
Coordinates40.65100, -96.91276

Physical Characteristics

Dam TypeEarth
NID Height31 ft
Dam Height26 ft
Dam Length790 ft
Year Completed1982 (44 years old)

Storage & Hydraulics

NID Storage413 acre-ft
Max Storage413 acre-ft
Normal Storage58 acre-ft
Surface Area15 acres
Drainage Area1 sq mi
Max Discharge860 cfs

Ownership & Safety

PurposeIrrigation
OwnerLower Big Blue Natural Resources District
Owner TypeLocal Government
Hazard ClassificationSignificant
Condition AssessmentSatisfactory
Last Inspection04/21/2022
Emergency Action PlanNot Required

Identifiers

NID IDNE02181
Federal IDNE02181
More InfoState Dam Safety Program

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