- Western Terminus:
- Half Hollow Road in Dix Hills
- Eastern Terminus:
- Rosevale Avenue (CR 93) in Ronkonkoma
- 14.51 miles
The Long Island Motor Parkway was the first limited-access highway constructed in the United States. It opened in 1908 and was originally a private toll highway extending from Queens to Ronkonkoma. It was later rendered obsolete with the construction of the Northern Parkway and then the Long Island Expressway (I-495). Two sections of the Long Island Motor Parkway survive today. One is a bike path in Queens, extending from Peck Avenue to Winchester Boulevard. The second is a surface road in Suffolk County, extending from Half Hollow Road in Dix Hills to Rosevale Avenue (CR 93) in Ronkonkoma. It carries the designation of CR 67 and is a two-lane road, mostly undivided. It is known as the Vanderbilt Parkway to the west of Brentwood and as the Motor Parkway to the east.