East Channel Bridge, Road bridge over the East Channel of Lake Washington, United States

The East Channel Bridge is a road bridge over the east channel of Lake Washington, connecting Mercer Island to Bellevue as part of the Interstate 90 corridor. It is made up of two separate steel structures placed side by side, each one carrying traffic in a single direction.

A first bridge at this location opened in 1923, serving early car traffic across the east channel. The current steel spans date from 1981 onward, with the westbound structure completed before the eastbound one.

The 1981 westbound structure carries the Mountains to Sound Greenway Trail, also called the I-90 Trail, beside the traffic lanes. The 1988 eastbound structure carries the 2 Line of Sound Transit's Link light rail. From the crossing, the Lacey V. Murrow and Homer M. Hadley memorial bridges over Lake Washington toward Seattle can be seen.

The bridge carries Interstate 90 traffic and is free to use for drivers. Walkers and cyclists can use the Greenway trail that runs along the westbound structure instead of the road lanes.

The two steel structures of the bridge are fully independent from each other, even though they sit right next to one another. This means that one side can be repaired or worked on without stopping traffic flowing in the other direction.