Knapple

Knapple is an earth dam located in Gosper County, Nebraska, built in 1941. It carries a Low hazard potential classification.

About Knapple

The primary purpose of Knapple is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Central Nebraska Public Power & Irrigation District (public utility).

The dam stands 33 feet tall and stretches 328 feet across, creates a reservoir covering 38 acres, and has a maximum storage capacity of 400 acre-feet. Completed in 1941, the structure is well-established, with more than 75 years of service.

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. The most recent inspection on record was 05/25/2017.

At 33 feet, this dam is taller than 78% of dams nationwide.

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Low Hazard ConditionEmergency Action Plan: Not Required

Location

StateNebraska
CountyGosper
Coordinates40.67817, -99.75013

Physical Characteristics

Dam TypeEarth
NID Height33 ft
Dam Height33 ft
Dam Length328 ft
Year Completed1941 (85 years old)

Storage & Hydraulics

NID Storage400 acre-ft
Max Storage400 acre-ft
Normal Storage325 acre-ft
Surface Area38 acres
Spillway TypeNone

Ownership & Safety

PurposeIrrigation
OwnerCentral Nebraska Public Power & Irrigation District
Owner TypePublic Utility
Hazard ClassificationLow
Last Inspection05/25/2017
Emergency Action PlanNot Required

Identifiers

NID IDNE01022
Federal IDNE01022
More InfoState Dam Safety Program

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