Permanent floating bridges are essentially boutique structures that only make sense for certain rare kinds of sites: unusually deep bodies of water and bodies of water with very soft bottoms, where ...

One of the earliest floating bridges was constructed by Persian Engineers by parking 676 ships in two parallel rows to help Xerxes's army cross the Hellespont. Since then, floating bridges have ...

Seattle’s Sound Transit had a challenging problem: how to get a new light-rail line on and off a nearly 1-mile-long Interstate 90 floating bridge while protecting the rails from the constant movement ...

A Link light rail train crosses the I-90 floating bridge over Lake Washington in Seattle under its own power during testing on Monday night. (Sound Transit Photo) Seattle’s reputation for innovation ...

Crews have installed one of the eight specialized track sections that will allow light rail trains to cross the Interstate 90 floating bridge. The 43-foot-long sections — called track bridges — will ...

Trains pass over all types of bridges to get where they're going, including typical steel girder and truss bridges seen all across America, trestle bridges, and even viaducts (think the Hogwarts ...

SEATTLE — The floating bridge on Interstate 90 will remain open for the Blue Angels practice and air show during Seafair this weekend. Typically the Washington State Department of Transportation has ...