List of Suffolk County, New York road proposals
Throughout the 20th century, Suffolk County, New York, planned to upgrade and improve many of its roads. Most of the construction of these roads took place between the 1940s and 1980s. However, many of them were unfinished, unbuilt or never upgraded due to fiscal concerns and a rash of anti-highway opposition in the late 20th century. Those that were unbuilt or unfinished are listed as follows.