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 ...

A bid to build the pontoons for a new SR 520 floating bridge have come in under the state's estimate with a Kiewit-General Joint Venture submitting the apparent best price and technical proposal. The ...

The final three pontoons that will make up the new SR 520 floating bridge arrived last week on Lake Washington. From the Aberdeen casting basin, it took four days to tow the pontoons north on the ...

The first of six new large pontoons has arrived in Lake Washington and is waiting to be installed on the 520 bridge. At 360 feet long, 29 feet tall, and 75 feet wide, the pontoon weighs 11,000 tons ...