I-90 Track Bridge

In an engineering first, light rail vehicles will someday travel over a floating bridge in Seattle, Washington. Two lanes of the Homer M. Hadley Memorial Bridge will be replaced with dual-track light rail that will take the region's light rail system over Lake Washington.


Key Numbers

Floating Span
1.1 miles 1.1 miles
Top Speed of Trains on Bridge
55 miles per hour 55 miles per hour