Construction

Crews will work in Smith Cove Park and on 32nd Avenue West to install another pipeline into the existing pipe corridor. The pipe will be assembled on 32nd Avenue West.

King County's contractor will install the new pipe using a method called pipe bursting. Pipe bursting uses a series of tools to pull a pipe through the existing pipeline from one end to the other (shown in the graphic and diagram). The pipe cutter tool breaks and expands the existing pipe. This project will use a pipe made of high density polyethylene (HDPE).

The pipe will be pulled from the diversion structure on 32nd Avenue West to the exit point in Smith Cove Park using the same path as the current pipe. King County's project team will be working closely with project neighbors throughout construction to provide advanced notice of activities and address questions and concerns.

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The steps in the pipe bursting process.