The Long Island Sound link is a proposed bridge or tunnel that would link Long Island, New York, to Westchester County or Connecticut, across Long Island Sound east of the Throgs Neck Bridge. The project has been studied and debated since the mid-20th century. The most recent proposal is a tunnel between Rye, New York, on the mainland and Oyster Bay on the island. Feasibility studies for bridges and tunnels have been conducted for numerous entry points, as listed in the chart below.

The Bronx–Whitestone Bridge is a suspension bridge in New York City, carrying six lanes of Interstate 678 over the East River. The bridge connects Throggs Neck and Ferry Point Park in the Bronx, on the East River's northern shore, with the Whitestone neighborhood of Queens on the southern shore.