 Southern State Parkway | |
|---|---|
 Southern State Parkway highlighted in red | |
| Route information | |
| Maintained by NYSDOT | |
| Length | 25.53 mi[1] (41.09 km) |
| Existed | 1927[2]–present |
| Restrictions | No commercial vehicles |
| Major junctions | |
| West end |   Belt Parkway / Cross Island Parkway in Valley Stream |
 Meadowbrook State Parkway in North Merrick Wantagh State Parkway in North Wantagh NY 135 in Wantagh  CR 57 / Robert Moses Causeway in West Islip | |
| East end |   Sagtikos State Parkway / Heckscher State Parkway in West Islip |
| Location | |
| Country | United States |
| State | New York |
| Counties | Nassau, Suffolk |
| Highway system | |
The Southern State Parkway (also known as the Southern State or Southern Parkway) is a 25.53-mile (41.09 km) controlled-access parkway on Long Island, New York, in the United States. The parkway begins at an interchange with the Belt and Cross Island parkways in Elmont, in Nassau County, and travels east to an interchange with the Sagtikos State Parkway in West Islip, Suffolk County, where it becomes the Heckscher State Parkway. The Southern State Parkway comprises the western portion of unsigned New York State Route 908M (NY 908M), with the Heckscher Parkway occupying the eastern section.
Construction of the highway, designed by Robert Moses, began in 1925. The first section of the parkway opened in 1927. It reached its original eastern terminus (Bay Shore Road) in 1949 and was extended to its current eastern terminus in 1962.