The tractor-trailer ran off the right side of the highway and across the ramp to Dunnfield Creek in Hardwick Township before hitting several trees and catching fire, NJSP Trooper Charles Marchan told Daily Voice.
The driver was taken to a local hospital with non-life-threatening injuries, Marchan said.
The Knowlton Township Fire and Rescue Company asked motorists to avoid the area over the next several hours as they operated at the scene.
Emergency crews in Hope, Blairstown and Mount Bethel, as well as the Warren County HAZMAT team, the New Jersey Forest Fire Service and the Delaware Water Gap National Recreation Area Fire Units assisted at the scene, the department said.
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