Homer Hadley Floating Bridge and Lacey V. Murrow Memorial Bridge.
It carries the traffic of State Route 520 and is 4,750 meters long.
But why floating bridges?
The answer lies in Lake Washingtons tricky geographical location.
The lake bed is too soft for piers of a conventional bridge.
The idea of a floating bridge across Lake Washington was first proposed by engineer Homer Hadley in the 1930s.
Hadleys floating bridge was such a success that Washington State adopted the concept for future bridges.
The second bridge, Evergreen Point, the longest in the world, was opened in 1963.
In honor of the man who first spearheaded the idea, the third bridge was named after Homer Hadley.
The original Lake Washington floating bridge, opened on July 3, 1940.
The current bridge was built in 1993, replacing a structure that sank during a severe storm.
Photo credit: Joshua Trujillo/seattlepi.com
Photo credit:Anna/Flickr
Evergreen Point Floating Bridge.
Photo credit:Washington State Dept of Transportation/Flickr
Evergreen Point Floating Bridge.
Photo credit:SounderBruce/Flickr
Evergreen Point Floating Bridge.
Photo credit:Ramanathan Kathiresan/Flickr
Evergreen Point Floating Bridge.
Photo credit:Peter Svensk/Flickr
Sources:Seattle Pi/The Engines of Our Ingenuity/Wikipedia
