The work includes, but is not limited to removal and disposal of approximately 450 LF of 51-inch diameter pile supported steel pipeline, including the pile bents and piles, and the installation of approximately 500 LF of new 51-inch diameter buried steel pipeline and appurtenances. The existing pipeline alignment is within an existing easement with residential improvements that will have to either be avoided during construction or in some cases be removed and replaced in kind. The new pipeline will be installed in a Snohomish County roadway, adjacent to the easement.