Tying off the largest pontoon built in Washington State
Once the massive pontoon was within the locks, crews tied it off. The water level rose, allowing tugboats to successfully tow them through the Lake Washington Ship Canal.
Crews floated in the first longitudinal pontoon for the new SR 520 bridge through the Hiram M. Chittenden Locks on August 11, 2012. Arriving just after 6 p.m., the entire operation took around 45 minutes and was observed by hundreds of spectators enjoying the sunny Saturday in Seattle, Washington. This pontoon is the first of 77 that will make their way from their casting basins to Lake Washington during the next two years.
Tying off the largest pontoon built in Washington State
Once the massive pontoon was within the locks, crews tied it off. The water level rose, allowing tugboats to successfully tow them through the Lake Washington Ship Canal.
Crews floated in the first longitudinal pontoon for the new SR 520 bridge through the Hiram M. Chittenden Locks on August 11, 2012. Arriving just after 6 p.m., the entire operation took around 45 minutes and was observed by hundreds of spectators enjoying the sunny Saturday in Seattle, Washington. This pontoon is the first of 77 that will make their way from their casting basins to Lake Washington during the next two years.