 New York State Bicycle Route 9 follows the US 9 corridor, diverging from the route in areas not conducive to bicycling.For example, Bicycle Route 9 follows US 9W in northern New Jersey and Rockland County, crosses the Bear Mountain Bridge, and follows NY 9D and NY 301 back to US 9 in Putnam County.US 9 enters New York as part of an expressway, soon becoming a surface street and major urban and suburban artery.