After crossing the Cheesequake Creek near a marina and leaving the park, the road enters Sayreville and has the Cheesequake Service Area in the median, with access to both the express and local lanes of the highway. Passing to the southwest of South Amboy, the parkway has a partial interchange with US 9 and passes over CSAO's Amboy Secondary line. After a northbound entrance and southbound exit at CR 670, the lanes, now as a 4-3-3-4 configuration, merge as they cross the abandoned Raritan River Railroad and reach the Raritan Toll Plaza southbound. North of the toll barrier is an exit for Chevalier Avenue; all southbound vehicles exiting here must have an E-ZPass transponder. Paralleling US 9 and Route 35, the parkway becomes 15 lanes as it crosses the Raritan River on the Driscoll Bridge, the widest motor vehicle bridge in the world. On the bridge, the northbound lanes are divided into two roadways; only the eastern roadway has access to exit 127, an interchange for US 9 and the Route 440 freeway, providing access to the Outerbridge Crossing to Staten Island. Just north of exit 127 in Woodbridge Township, the parkway runs in between the northbound and southbound lanes of US 9. After passing under CSAO's Perth Amboy Running Track, US 9 splits off to the east and the parkway reaches an interchange with the New Jersey Turnpike (I-95). Running northwest through Woodbridge Township as a ten-lane roadway, the highway has a junction with US 1 and crosses under CSAO's Port Reading Secondary line as it enters the community of Iselin, passing to the east of several corporate offices. Immediately after passing under Amtrak's Northeast Corridor east of the Metropark station serving Amtrak and NJ Transit's Northeast Corridor Line, the GSP has an interchange with Route 27 (Lincoln Highway), which serves Rahway to the northeast. North of this point, the parkway curves northeast through densely populated neighborhoods, passing the Colonia South and Colonia North service areas.