This entry is about the East River in New York City. For other uses, please see East River (disambiguation).
The East River is both a tidal strait and a tidal estuary in New York City connecting Upper New York Bay on its south end to Long Island Sound on its north end. It separates Long Island (the boroughs of Queens and Brooklyn) from the island of Manhattan and the Bronx.
In reference to its connection to Long Island Sound, it was once also known as the Sound River.
The river is spanned by eight bridges, which from north to south are:
- Throgs Neck Bridge
- Bronx-Whitestone Bridge
- Hell Gate Bridge
- Triborough Bridge
- Roosevelt Island Bridge (east channel only)
- Queensboro Bridge
- Williamsburg Bridge
- Manhattan Bridge
- Brooklyn Bridge.
A total of thirteen tunnels run under the East River. Two of them, the Brooklyn-Battery Tunnel and Queens-Midtown Tunnel, carry automobile traffic. One carries inter-city and commuter railroad traffic connecting to Penn Station. The remaining ten carry subway traffic.
The Bronx River drains into the East River in the northern section of the strait.
North of Ward's Island, it is joined by the Bronx Kill. Along the east of Ward's Island, at approximately the strait's midpoint, the it narrows into a channel called Hell Gate, which is spanned by both the Triborough Bridge and the Hell Gate Bridge. On the south side of Ward's Island, it is joined by the Harlem River.
Newtown Creek on Long Island drains into the East River, forming part of the boundary between Queens and Brooklyn.
The East River contains a number of islands, including:
- Upper section
- Lower Section
- Ward's Island and Randall's Island (joined by landfill)
- Roosevelt Island
- U Thant Island (Belmont Island)