Pacific Highway South HOV Lanes

Sound Transit I-5 Undercrossing Pits
September 29, 2017
Kirkland Transit Center
September 29, 2017

Location: Federal Way, Washington

This project consisted of four phases to improve traffic and pedestrian safety and circulation, supporting the use of transit and carpools, providing landscaping and enhancing the overall aesthetics of the urban route. It involved reconstructing portions of and widening Pacific Highway South to add HOV lanes northbound and southbound; add curb, gutter, and sidewalks (both sides); street lights; medians; landscaping; and undergrounding the overhead utilities. Additional improvements included modification and interconnection of existing traffic signal systems, channelization, access management, and drainage system improvements. The project included extensive construction of mechanically stabilized earth walls. The project was funded by the City of Federal Way, a federal TEA-21 grant, and a TIB grant.

ORA was engaged to provide the following services in accordance to WSDOT specifications:

  • Earthwork and excavation monitoring
  • Fill placement and soil compaction testing
  • Soil bearing verification
  • Subgrade evaluation
  • Asphalt compaction testing
  • Reinforced concrete testing and inspection