Lake Sophia

Lake Sophia is an earth dam located in Susquehanna County, Pennsylvania, built in 1957. It carries a High hazard potential classification and has a fair condition assessment.

About Lake Sophia

The primary purpose of Lake Sophia is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Stephen Holgash (private). It impounds the Tr Choconut Creek.

The dam stands 30 feet tall and stretches 340 feet across, creates a reservoir covering 14 acres, has a maximum storage capacity of 166 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1957, the structure is well into its service life at over 50 years old.

This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream. Its condition is rated fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. An emergency action plan is in place for this dam. The most recent inspection on record was 03/24/2021.

Living Downstream

If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The Pennsylvania dam safety program can provide more specific information about emergency planning for this structure.

Search for dams near your address to see all dams in your area with hazard classifications and safety data.

High HazardFair ConditionEmergency Action Plan: Yes

Location

StatePennsylvania
CountySusquehanna
River/StreamTr Choconut Creek
Coordinates41.97250, -75.97694

Physical Characteristics

Dam TypeEarth
NID Height30 ft
Dam Height30 ft
Dam Length340 ft
Year Completed1957 (69 years old)

Storage & Hydraulics

NID Storage166 acre-ft
Max Storage166 acre-ft
Normal Storage120 acre-ft
Surface Area14 acres
Drainage Area1 sq mi

Ownership & Safety

PurposeRecreation
OwnerSTEPHEN HOLGASH
Owner TypePrivate
Hazard ClassificationHigh
Condition AssessmentFair
Last Inspection03/24/2021
Emergency Action PlanYes

Identifiers

NID IDPA00078
Federal IDPA00078
More InfoState Dam Safety Program

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