Sixteen million pound South Park Bridge pier now in place; Major concrete pour taking place this weekend
King County Department of Transportation released a progress report on the South Park Bridge now under construction noting a major concrete pour scheduled to take place this weekend, Aug. 25 which will impact traffic.
Major milestone reached
The new bridge’s southern in-water pier reached its final design depth, approximately 70 feet below the river bed. This work required specialized skill of the contractor to place the pier not only at the correct depth, but also to the correct north/south and east/west coordinates. The 16-million pound, in-river pier is now securely founded on hard material. Concrete will be pumped into the bottom of the caisson to form a 24’ thick plug to seal the caisson from river water and improve the structural properties of the pier. Soon the pier crews will work to extend the concrete walls 32 feet more to their final height.
Concrete pouring this Saturday