The following highways are numbered 18D:
New York State Route 182 (NY 182) is a 6.18-mile (9.95 km) state highway in Niagara County, New York, in the United States. It serves as a signed connection between the Whirlpool Rapids Bridge over the Niagara River and the Niagara Falls International Airport east of the city of Niagara Falls. From the bridge, NY 182 runs across the city of Niagara Falls, following several local streets as it makes its way to an intersection with U.S. Route 62 (US 62) in Wheatfield. The route was originally designated as New York State Route 18D in the early 1930s. It gained its current designation on January 1, 1962.
