Leaser Lake

Leaser Lake is an earth dam located in Lehigh County, Pennsylvania, built in 1971. It carries a High hazard potential classification and has a fair condition assessment.

About Leaser Lake

The primary purpose of Leaser Lake is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Pa Fish & Boat Commission (state). It impounds the Jacksonville Br Ontelaunee Cr.

The dam stands 56 feet tall and stretches 453 feet across, creates a reservoir covering 117 acres, has a maximum storage capacity of 2,685 acre-feet, and collects water from a drainage area of 3 square miles. Completed in 1971, 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 01/19/2021.

At 56 feet, this dam is taller than 94% of dams nationwide.

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
CountyLehigh
River/StreamJacksonville Br Ontelaunee Cr
Coordinates40.66778, -75.83583

Physical Characteristics

Dam TypeEarth
NID Height56 ft
Dam Height56 ft
Dam Length453 ft
Year Completed1971 (55 years old)

Storage & Hydraulics

NID Storage2,685 acre-ft
Max Storage2,685 acre-ft
Normal Storage1,657 acre-ft
Surface Area117 acres
Drainage Area3 sq mi

Ownership & Safety

PurposeRecreation
OwnerPA FISH & BOAT COMMISSION
Owner TypeState
Hazard ClassificationHigh
Condition AssessmentFair
Last Inspection01/19/2021
Emergency Action PlanYes

Identifiers

NID IDPA00787
Federal IDPA00787
More InfoState Dam Safety Program

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