Exit 17 on the Henry Hudson Parkway is a no-form interchange in w:Inwood. It supplies ramps to two roads, Dyckman Street and Riverside Drive. Exit 17 going southbound is for Dyckman Street while its for Riverside Drive going northbound. Riverside Drive quickly ends at the intersection of Dyckman and Broadway (also known as U.S. Route 9). A no-form intersection is one that does not make any particular shape like a cloverleaf.