Swetts Pond

Swetts Pond is a concrete dam located in Penobscot County, Maine, built in 1946. It carries a Significant hazard potential classification and has a poor condition assessment.

About Swetts Pond

The primary purpose of Swetts Pond is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by Orrington (local government). It impounds the Penobscot.

The dam stands 6 feet tall and stretches 30 feet across, creates a reservoir covering 125 acres, has a maximum storage capacity of 700 acre-feet, and collects water from a drainage area of 3 square miles. Completed in 1946, the structure is well-established, with more than 75 years of service.

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 poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. An emergency action plan is in place for this dam. The most recent inspection on record was 07/28/2020.

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Significant HazardPoor ConditionEmergency Action Plan: Yes

Location

StateMaine
CountyPenobscot
River/StreamPenobscot
Coordinates44.70525, -68.78619

Physical Characteristics

Dam TypeConcrete
NID Height6 ft
Dam Height6 ft
Dam Length30 ft
Year Completed1946 (80 years old)

Storage & Hydraulics

NID Storage700 acre-ft
Max Storage700 acre-ft
Normal Storage450 acre-ft
Surface Area125 acres
Drainage Area3 sq mi

Ownership & Safety

PurposeFlood Risk Reduction
OwnerOrrington
Owner TypeLocal Government
Hazard ClassificationSignificant
Condition AssessmentPoor
Last Inspection07/28/2020
Emergency Action PlanYes

Identifiers

NID IDME96055
Federal IDME96055
More InfoState Dam Safety Program

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