Monday, August 13, 2012
The first pontoon makes its appearance
For those who missed the coverage in the local media this weekend, we offer this photo showing the first of the new "longitudinal pontoons" to arrive on Lake Washington. It's currently floating at a temporary moorage off of Medina, but it's destined to be one of 77 such pontoons that will eventually support the new SR 520 floating bridge as it progresses across the Lake in our direction.
The pontoon was manufactured in Grays Harbor and floated through the Hiram M. Chittenden Locks on Saturday:
Each pontoon is 75 feet wide (which explains the tight fit through the Locks), 29 feet tall, and weighs 11,000 tons. A second pontoon will be floated in tomorrow.
Those interested in watching the progress of bridge construction from the vantage point of a stationary camera positioned in Medina can do so here. This is what the camera shows as we post:
[Photos and videos courtesy of WSDOT.]