Hoisting the final section
With the launch channel unobstructed from the casting basin for the first time since the basin was complete in winter 2011, the pontoons began to float. One by one, the massive concrete bridge pontoons floated from the basin floor, where waiting tugboats towed them into the waters of Grays Harbor on July 30, 2012.
The SR 520 Pontoon Construction Project hit a major milestone on July 30, 2012, when six massive concrete pontoons were floated out of the casting basin in Aberdeen, Washington. This is the first of six cycles of pontoons from the site in Aberdeen that will be used as the floating foundation for a new, safer SR 520 floating bridge across Lake Washington.
Hoisting the final section
With the launch channel unobstructed from the casting basin for the first time since the basin was complete in winter 2011, the pontoons began to float. One by one, the massive concrete bridge pontoons floated from the basin floor, where waiting tugboats towed them into the waters of Grays Harbor on July 30, 2012.
The SR 520 Pontoon Construction Project hit a major milestone on July 30, 2012, when six massive concrete pontoons were floated out of the casting basin in Aberdeen, Washington. This is the first of six cycles of pontoons from the site in Aberdeen that will be used as the floating foundation for a new, safer SR 520 floating bridge across Lake Washington.