A culvert that runs under State Route 9 at milepost 34.7, south of Lake McMurray near the North Centennial Trail Trailhead, was failing and needed to be replaced. The bottom of the culvert had rusted away, which resulted in water washing away the side of the road. This caused a sinkhole on the shoulder that was repaired in April 2018 and could have caused further problems in the future. Contractor crews working for WSDOT closed the highway for several days to dig up the old culvert and replace it during fall 2021.
What to expect
This project is complete and travelers should not expect any construction related travel delays.
A culvert runs under State Route 9, here at milepost 34.7, just south of Lake McMurray near the North Centennial Trail Trailhead.