Interstate 878 is an eastbound-only, unsigned interstate. It is also the shortest interstate and NYSDOT doesn't acknowledge its existance. I-878 is a part of NY 878, one segment of which is the Nassau Expressway. The eastern segment is disconnected but the roadway is continuous via Rockaway Boulevard. The Nassau Expressway was originally known as I-78, with I-878 on the Bruckner Expressway; after the cancellation of the Lower Manhattan Expressway, the Nassau Expressway and the Cross Brooklyn Expressway were designated I-878. After the cancellation of the Cross Brooklyn Expressway, I-878 was resigned NY 878.

Mile Eastbound Westbound Notes
Queens County
Borough of Queens
Speed Limit 50
0.0 NY 878 east
NY 878 east I-878
1.6 Exit 1S
Kennedy Airport
Van Wyck Espressway South
I-678 South
1.6 Exit 1N
I-678 North
Van Wyck Expressway
Bronx
1.9 Belt Parkway West
Verrazano Bridge
Passenger cars only
1.9 NY 27 West
Kennedy Airport
North Conduit Avenue
1.9 I-678 North
Van Wyck Expressway
Whitestone Bridge
2.3 Exit 2S
Kennedy Airport
JFK Expressway
2.3 Exit 2N
NY 27 East
Belt Parkway East
South Conduit Avenue
NY 878 east NY 878 west
Speed Limit 40 Speed Limit 50
2.9 Exit 3
North Hangar Road
North Boundary Road
Kennedy Airport
North Hangar Road
North Boundary Road
At-grade intersection
3.2 North Boundary Road East Rockaway Boulevard
Belt Parkway East
Farmers Boulevard
At-grade intersection
To NY 878
Rockaway Boulevard East
Farmers Boulevard Next Right
NY 878 west
Speed Limit 40
Queens County
Borough of Queens

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