The Henry Hudson Bridge is a steel arch toll bridge in New York City across the Harlem River, a tidal strait. It connects the Spuyten Duyvil section of The Bronx with the northern end of Manhattan to the south. On the Manhattan side, it touches Inwood Hill Park.

The bridge has two roadway levels, carrying an aggregate of seven traffic lanes, the lower level having been opened to traffic in 1936 and the upper level in 1938, and was designed by David B. Steinman (in realization of his PhD thesis), and built by the American Bridge Company at an original cost of 4,949,000 USD for the original single deck structure. A second deck had been designed in, and was added in 1938 at an additional cost of approximately 2,000,000 USD.

The George Washington Bridge (known informally as the GW Bridge, the GWB, or the GW) is a toll suspension bridge spanning the Hudson River, connecting the Washington Heights neighborhood in the borough of Manhattan in New York City to Fort Lee in New Jersey by means of Interstate 95, U.S. Route 1, U.S. Route 9.

Despite what many think, the bridge does NOT carry U.S. Route 46 over the entire river. Rather, 46 ends halfway across the bridge, at the state border, which may explain 46's absence on many maps.

The Verrazano-Narrows Bridge is a double-decked suspension bridge that connects the boroughs of Staten Island and Brooklyn in New York City at the Narrows, the reach connecting the relatively protected upper bay with the larger lower bay.

The bridge is named for Italian explorer Giovanni da Verrazano, the first known European navigator to enter New York Harbor and the Hudson River.

The Ward's Island Bridge is a pedestrian bridge crossing the Harlem River between the Manhattan Island and Ward's Island in New York City.

Its westward approaches connect to East 103rd Street and FDR Drive on the east side of Manhattan Island in the neighborhood known as Spanish Harlem. Its eastward approaches connect to pedestrian/bicycle trails on the west side of Ward's Island.

The Triborough Bridge is a complex of three bridges connecting the New York City boroughs of the Bronx, Manhattan, and Queens, using what were two islands, Ward's Island and Randall's Island as intermediate rights-of-way between the water crossings.

These two islands have been consolidated by landfill.

The Hell Gate Bridge (originally the New York Connecting Railroad Bridge) is a 1,017-foot (310 m) steel arch railroad bridge between Astoria in the borough of Queens and Randalls and Wards Islands (which are now joined into one island and are politically part of Manhattan) in New York City, over a portion of the East River known as Hell Gate.

The Queensboro Bridge, also known as the 59th Street Bridge, is a cantilever bridge over the East River in New York City. It connects the neighborhood of Long Island City in the borough of Queens with Manhattan, passing over Roosevelt Island. It carries New York State Route 25 and once carried NY 24 and NY 25A as well.

The Queensboro Bridge is the only one of the four East River spans that carries a route number (excluding the Triborough Bridge): NY 25 terminates at the west (Manhattan) side of the bridge.

The Williamsburg Bridge is a suspension bridge in New York City across the East River connecting Manhattan at Delancey St. with the Williamsburg neighborhood of Brooklyn on Long Island at Broadway near the Brooklyn-Queens Expressway (Interstate 278). It once carried New York State Route 27A and later Interstate 78.

Construction on the bridge began in 1896, with Leffert L. Buck as chief engineer, Henry Hornbostel as architect and Holton D. Robinson as assistant engineer, and the bridge opened on December 19, 1903 at a cost of $12,000,000.

The Manhattan Bridge is a suspension bridge that crosses the East River in New York City, connecting Lower Manhattan with Brooklyn.

The bridge was opened on December 31, 1909 and was designed and built by Polish bridge engineer Ralph Modjeski with the deflection cables designed by Leon Moisseiff, who later designed the infamous Tacoma Narrows Bridge in 1940.
It has 4 vehicle lanes on the upper level (split between two roadways), and 3 vehicle lanes, 4 subway tracks, a walkway and a bikeway on the lower level.

The Brooklyn Bridge (originally the New York and Brooklyn Bridge), one of the oldest suspension bridges in the United States, stretches 5,989 feet (1825 m) over the East River connecting the New York City boroughs of Manhattan and Brooklyn.
On completion, it was the largest suspension bridge in the world and the first steel-wire suspension bridge.