NY 415 begins at an intersection with NY 414 (Centerway) in the Denmark section of the city of Corning. The route heads westward from the junction as a four-lane road named East Pulteney Street, passing north of the Corning Museum of Glass and serving a commercial area of the city. NY 415 changes names to West Pulteney Street five blocks later at a junction with Bridge Street; it also narrows from four lanes to two after meeting Dodge Avenue three blocks to the west of Bridge Street. Past Dodge Avenue, the highway gradually turns to the northwest, paralleling the course of the nearby Chemung River. The route soon passes into the adjacent village of Riverside, where it briefly widens to four lanes ahead of a partial interchange with the Southern Tier Expressway (I-86 and NY 17). Past the exit, NY 415 reverts to a two-lane right-of-way and passes under the Norfolk Southern Railway's Southern Tier Line (formerly the Erie Railroad's main line).