The Mount Baker Tunnel or Mount Baker Ridge Tunnel carries Interstate 90 under the Mount Baker neighborhood of Seattle, Washington. It is actually a group of three tunnels that carry eight lanes of freeway traffic, plus a separate path for bicycles and pedestrians. The two originals are twin tunnel bores completed in 1940 and rehabilitated in 1993. The newest tunnel was built north of the original tunnels and opened in June 1989.The tunnel has a double-decked roadway with the bicycle/pedestrian path above the traffic lanes.
 |
| I-90 Bridge Tunnel - February 7, 2016 |
 |
| I-90 Bridge Tunnel - February 7, 2016 |
