The Washington State Dept. of Transportation is creating a list of best construction practices for floating bridges, based on results of tests conducted on a pontoon built at one-sixth the typical ...

A comprehensive review is due Tuesday of construction flaws found on pontoons for the new highway 520 floating bridge. Some of the 33 pontoons built in Aberdeen have arrived at Lake Washington with ...

ABERDEEN — Always mixing and tweaking, industrial engineers continue working to develop the right concrete recipe and process to build the strongest pontoons possible for the upcoming Highway 520 ...

The final eight “supplemental stability pontoons” for the new State Route 520 floating bridge floated out of their casting basin this week, marking the completion of the 44 bridge pontoons built in ...

ABERDEEN — The Transportation Department reports another milestone in construction of the casting basin at Aberdeen where pontoons for the new Highway 520 floating bridge will be built. A crane is ...

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 ...

OLYMPIA, Wash. (AP) - The Washington Department of Transportation says Kiewit-General Joint Venture has submitted a bid for construction of new pontoons for the State Route 520 floating bridge that is ...

The fourth of six batches of pontoons floated out of the Aberdeen casting basin Tuesday night and Wednesday morning, headed for the new state Route 520 bridge across Lake Washington. "We're now ...