Forest Lake

Forest Lake is an earth dam located in Susquehanna County, Pennsylvania, built in 1842. It carries a Significant hazard potential classification and has a satisfactory condition assessment.

About Forest Lake

The primary purpose of Forest Lake is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Forest Lake Cottage Owners Association (private). It impounds the Forest Lake Creek.

The dam stands 12 feet tall and stretches 200 feet across, creates a reservoir covering 46 acres, has a maximum storage capacity of 720 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1842, the structure is one of the older dams in the region, with over a century and a half 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 satisfactory, indicating no existing or potential dam safety deficiencies are recognized. An emergency action plan is in place for this dam. The most recent inspection on record was 07/08/2019.

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Significant HazardSatisfactory ConditionEmergency Action Plan: Yes

Location

StatePennsylvania
CountySusquehanna
River/StreamForest Lake Creek
Coordinates41.88028, -75.96000

Physical Characteristics

Dam TypeEarth
NID Height12 ft
Dam Height12 ft
Dam Length200 ft
Year Completed1842 (184 years old)

Storage & Hydraulics

NID Storage720 acre-ft
Max Storage720 acre-ft
Normal Storage604 acre-ft
Surface Area46 acres
Drainage Area0 sq mi
Spillway TypeUncontrolled

Ownership & Safety

PurposeRecreation
OwnerFOREST LAKE COTTAGE OWNERS ASSOCIATION
Owner TypePrivate
Hazard ClassificationSignificant
Condition AssessmentSatisfactory
Last Inspection07/08/2019
Emergency Action PlanYes

Identifiers

NID IDPA00968
Federal IDPA00968
More InfoState Dam Safety Program

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