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Non-destructive Testing (UTM)

Delaware River and Bay Authority

Annual Condition Survey of the Three Forts Crossing Ferry Docks

Location: Pennsville, NJ; Pea Patch Island, DE and Delaware City, DE • Delaware River

S. T. Hudson Engineers conducts annual condition surveys for the Authority at these three (3), Americans with Disabilities Act (ADA) compliant, passenger ferry docks. Our engineers perform topside inspections of all structural components at each location. Our team of professional, hard-hat divers inspect the structural members located at and below the tidal zone to the existing river bottom. If conditions deem necessary, we conduct non destructive, ultrasonic thickness tests to obtain percentages of steel loss, timber pile sampling and structural analysis based on our findings.

These ferries provide access to these Civil War era armaments for both the public and park staff who maintain these historic gems.