SR 18 - Landslide
AUBURN - WSDOT reopened two lanes of westbound SR 18 near Auburn at 3:25 a.m. Tuesday, Jan. 19. Two landslides closed the westbound lanes of SR 18 the evening of January 14.

WSDOT contractor crews worked through the weekend to:

* stabilize the steep hillside above the roadway by removing trees and loose debris
* remove debris from the roadway
* install drainage systems to handle stormwater run-off from the hillside
* build a temporary wall in the westbound truck climbing lane designed to catch any remaining small debris that may fall.
* construct a barrier in front of the wall
* restripe the roadway

“Our crews took advantage of every dry bit of weather this weekend.” said WSDOT Regional Administrator Lorena Eng. “The temporary fix allowed us to reopen one lane of westbound SR 18, which is a critical route for freight and commuters. WSDOT engineers will now focus their attention on designing a permanent fix for the hillside.”

The Washington State Patrol notified WSDOT of the first slide at 3:47 a.m. Thursday, Jan. 14. Because the slide area was nearly 50 feet above the road, maintenance crews closed the right lane and right shoulder of westbound SR 18 as a precaution at 4:30 a.m.
A larger slide occurred at 10:40 p.m. Thursday and brought down mud, rocks and debris across all westbound lanes. The slide pushed debris up against the jersey barrier separating the west- and eastbound lanes.
30 photos · 9,651 views