CTS provided subconsultant services to Kato & Warren on this project for King County. Barry Knight, served as the project manager. The project involved the reconstruction of 2.5 miles of 2-lane roadway on the Sammamish Plateau to provide four travel lanes and a two-way left-turn lane/median, bicycle lanes, curbs and gutters and sidewalks.
Services provided to the County by the project team included surveying and mapping, environmental documentation (EIS), public involvement, geotechnical investigations, roadway and drainage design, utility relocations, retaining-wall design, wetland mitigation, right-of-way plans, traffic-control plans, TESC plans, landscape design, and PS&E preparation for Phase 1A. CTS was responsible for the analysis, planning and design of six traffic-signal systems, and the street lighting.