CHS Engineers, LLC Projects: 2

PROJECTS: Water

CHS Engineers provided construction management services for the final phase of construction of the Clearview Water Supply Project. The final phase of this project, known as the Alderwood Clearview Pipeline-Segment 2, included the installation of approximately 11,000 linear feet of 16" and over 5,000 linear feet of 12" ductile iron pipe water transmission main. Portions of the water line were constructed on 35% slopes across a 60-foot ravine, requiring the use of restrained joints. The water line alignment paralleled the Seattle City Light right-of-way, requiring pipeline grounding mats and joint bonding along segments of the pipeline. The construction management included coordination with multiple utilities, government agencies and property owners for construction within 37 individual easements. The pipeline was installed through several wetlands and under SR 524, requiring a 60-foot jack and bore steel casing. Prior to advertising and construction, CHS also provided design review services for the project. Segment 2, the final phase of the Alderwood Clearview Pipeline, was the only phase of the entire project (total of five phases) to be constructed under the bid amount.