Before the Pulaski Skyway was built, the cut through the New Jersey Palisades (now Route 139) ended at Tonnele Circle, where Tonnele Avenue went north and south, and the main road to Newark went west. To the east, just north of the road through the cut, was a connector road to Hudson County Boulevard (now renamed Kennedy Boulevard). When the Skyway was built, the old connection to Tonnele Circle became a left-side exit and entrance ramp to the Circle, with the Skyway passing over the Circle. Right-side exit and entrance ramps were provided between the Skyway and the Circle, with the southbound onramp exiting the circle north of the old road (now TRUCK US 1/9).