This highway widening project for the Washington State Department of Transportation was in an area known for congestion and substandard driving conditions. The PCL team widened both directions of the road by two lanes, widened three existing bridges, added two new bridges, and completed all new roadway facilities across the 1.28-mile corridor. Drivers now have improved sight distances and proper merge lengths, and the flooding of the adjacent creek is no longer a concern.
Prior to starting construction, PCL surveyed the existing bridge decks and identified multiple errors. Correcting these errors resulted in cost savings and a quality riding surface, particularly on the widened bridges. PCL also identified concerns with the client’s staging plan at the beginning of the project, and the team provided sound solutions that maintained the schedule and minimized effects to the traveling public.
The client identified the environmentally sensitive nature of the work as a major concern, which afforded PCL the opportunity to optimize the erosion control plan. This plan trimmed the budget even more, and the overall approach led to opening the corridor more than four months ahead of schedule.