Swatara

Swatara is a concrete dam located in Dauphin County, Pennsylvania, built in 1935. It carries a Low hazard potential classification.

About Swatara

The primary purpose of Swatara is water supply. The dam stores water for municipal, industrial, or agricultural use, helping ensure a reliable supply for the surrounding area. The dam is owned by Pa American Water Company (private). It impounds the Swatara Creek.

The dam stands 10 feet tall and stretches 360 feet across, creates a reservoir covering 56 acres, has a maximum storage capacity of 668 acre-feet, and collects water from a drainage area of 521 square miles. Completed in 1935, 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 06/02/2016.

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Low HazardNot Rated ConditionEmergency Action Plan: Not Required

Location

StatePennsylvania
CountyDauphin
River/StreamSwatara Creek
Coordinates40.29056, -76.67611

Physical Characteristics

Dam TypeConcrete
NID Height10 ft
Dam Height10 ft
Dam Length360 ft
Year Completed1935 (91 years old)

Storage & Hydraulics

NID Storage668 acre-ft
Max Storage668 acre-ft
Normal Storage501 acre-ft
Surface Area56 acres
Drainage Area521 sq mi

Ownership & Safety

PurposeWater Supply
OwnerPA AMERICAN WATER COMPANY
Owner TypePrivate
Hazard ClassificationLow
Condition AssessmentNot Rated
Last Inspection06/02/2016
Emergency Action PlanNot Required

Identifiers

NID IDPA01541
Federal IDPA01541
More InfoState Dam Safety Program

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