ENR Northwest 8/8-15/16 p. NW22 Design engineer gets technical with post-tensioning during demolition of a floating bridge in Seattle. For decades, the 7,580-ft-long concrete pontoon bridge, ...

SEATTLE — The Washington Transportation Department said Tuesday that mistakes were made in the construction of pontoons for the new Highway 520 floating bridge across Lake Washington between Seattle ...

Flaws in the design led to cracks during post-tensioning of the first four concrete pontoons built for the replacement of the world's longest floating bridge in Seattle, says the Washington State Dept ...

In the central Vermont town of Brookfield (pop. 1,292), the world’s first floating fiber-reinforced polymer (FRP) bridge has replaced a 1978 version that carried state Route 65 traffic over Sunset ...

ABERDEEN, Wash. - A fresh batch of giant concrete pontoons for the new 520 Bridge just rolled out of the Aberdeen casting basin today, finishing the third of six total pontoon cycles to be built in ...

Fixing, sealing and strengthening Highway 520 bridge pontoons has cost at least $81.1 million, with more expenses ahead, the state has revealed. That work, the result of a state design team’s ...

Small cracks have appeared in at least two the first six pontoons built for a new floating bridge in Lake Washington, but transportation officials said Friday the problem is manageable. Leaks can be ...

RETHINK REUSE recently announced the winning entries in their Transforming Seattle’s 520 Floating Bridge 2012 International Design Ideas Competition. With the goal of envisioning new, innovative reuse ...