Illicks Mill

Illicks Mill is an earth dam located in Northampton County, Pennsylvania, built in 1850. It carries a Low hazard potential classification and has a fair condition assessment.

About Illicks Mill

The primary purpose of Illicks Mill is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by City Of Bethlehem, Parks & Public Property Dept (local government). It impounds the Monocacy Creek.

The dam stands 15 feet tall and stretches 130 feet across, creates a reservoir covering 5 acres, has a maximum storage capacity of 50 acre-feet, and collects water from a drainage area of 42 square miles. Completed in 1850, the structure is one of the older dams in the region, with over a century and a half 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. Its condition is rated fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. The most recent inspection on record was 11/12/2020.

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Low HazardFair ConditionEmergency Action Plan: Not Required

Location

StatePennsylvania
CountyNorthampton
River/StreamMonocacy Creek
Coordinates40.64250, -75.38250

Physical Characteristics

Dam TypeEarth
NID Height15 ft
Dam Height15 ft
Dam Length130 ft
Year Completed1850 (176 years old)

Storage & Hydraulics

NID Storage50 acre-ft
Max Storage50 acre-ft
Normal Storage20 acre-ft
Surface Area5 acres
Drainage Area42 sq mi

Ownership & Safety

PurposeRecreation
OwnerCITY OF BETHLEHEM, PARKS & PUBLIC PROPERTY DEPT
Owner TypeLocal Government
Hazard ClassificationLow
Condition AssessmentFair
Last Inspection11/12/2020
Emergency Action PlanNot Required

Identifiers

NID IDPA00962
Federal IDPA00962
More InfoState Dam Safety Program

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