The emergency pumping system has two main components: 1) a set of pumps that pulls water from the smaller pipes and moves the water to the north into a storm drain along the I-405 shoulder. The smaller pipes over the white sandbags are part of this component. 2) The second component consists of 15 pumps (the silver cylinders) that move water into three 24-inch-wide pipes. These pipes carry the water 2000 feet around I-405 and then disperse it into a wetland on the other side of the freeway.The orange generators power the sump pumps that help divert Thunder Hills Creek away from the damaged culvert. Five pumps connect to a manifold that distributes the water into one of three 24-inch wide pipes.These pumps and pipes move water from Thunder Hills creek into a storm drain along the I-405 shoulder to the north of the project area.Crews stabilized the sinkhole with crushed rock. The sinkhole formed on top of the portion of the culvert that collapsed in the Dec. 3 storm.Project Engineer Lisa Hodgson talks to reporters about the project and upcoming closuresWSDOT staff examine the sinkhole adjacent to southbound I-405Another view of the sinkholeThis image from inside the culvert shows the blockage caused by the collapse.