At the junction with Broadway, NY 5 continues west through Fonda while NY 30A turns north on Broadway. Paralleling the nearby NY 334, which starts less than a mile to the west, NY 30A leaves Fonda for the town of Mohawk, where it gains the Old Plank Road moniker. NY 30A continues north through Mohawk, proceeding away from NY 334, soon bending northeast and crossing the county line into Fulton County and the town of Johnstown. Dropping the Old Plank Road name, NY 30A gains the South Comrie Avenue moniker as it enters the city of Johnstown. At Chestnut Street, the route turns eastward, crossing through the southern edges of the city, before turning north and bypassing the center of Johnstown. Along the bend, NY 30A reaches a junction with NY 67 (East State Street).