SR 520 Bridge, Seattle, Wash.

Construction of support and box columns on Pontoon W continues. Due to the work trestle, seen in the lower right corner, the east navigation channel is completely blocked.

The Kiewit/General/Manson crew took a few moments to snap a group photo in front of the last anchor for the new floating bridge before lowering it nearly 200 feet to the bottom of Lake Washington.

Crews undertake the hard work of distributing concrete for the pier foundation.

A view of the pour activities looking towards the Medina shoreline.

High above Lake Washington, and with SR 520 in the background, construction crews carry on with their day as they continue to make progress in building roadway support structures on the top of Pier 1. In the distance, Pier 36, the west approach to the new floating bridge, is also visible.

As the bridge continues to take shape, crews work to build 772 columns and install 331 girders to form the superstructure of the new bridge. Once complete, the superstructure will support the new roadway.

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