The closures will be for 45-minute durations between 8:15 a.m. and 5 p.m., Mondays through Thursdays. Crews will open the highway for 15 minutes at the top of every hour to allow drivers safe passage through the work zone. The closures are expected to continue through early June.
Crews will remove loose rock, unstable soil, trees and other debris from the slope above the highway. After scaling work is complete, crews will work during intermittent lane closures to finish activities in the project area.
"Rockfall projects are a reality of maintaining a scenic route like SR 4," said WSDOT Project Engineer Denys Tak. "We can't guarantee that every slope on this section of highway will be slide-free, but we are continuing to proactively address the slopes we have identified as priorities"
With the propensity for rockslides in the area, this 21-mile stretch of SR 4 between Longview and Cathlamet consistently ranks high on WSDOT's priority list for stabilization projects.
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