North of Exit 24, I-87 is the Adirondack Northway and connects the city and county of Albany with their suburbs in Saratoga County and provides long-distance travel to Montreal. East of Exit 24, I-90 travels along the northern boundary of the city of Albany and exits the county on the Patroon Island Bridge into Rensselaer County to access Albany's eastern suburbs. Interstate 787 connects the Thruway (I-87) to Downtown Albany, Menands, Watervliet, and Cohoes. U.S. Route 9 enters the county on the Dunn Memorial Bridge and travels through the city of Albany north, connecting it with the suburbs in the Colonie and Saratoga County. U.S. Route 20 also enters the county on the Dunn Memorial Bridge and travels west through Albany (city) and the Town of Guilderland. New York State Route 5 and New York State Route 7 are two important highways that bisect the county and are developed as important shopping strips.