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SR 4 - East of County Line Park Rockfall - Project Photos

September 2008

Completed Rockfall Photo
A view of the finished work.


Crews finish up the project by laying fresh asphalt over a section of road in the work zone.


New cable netting will help prevent rockfall along this section of SR 4.


A rockfall fence will help catch larger rocks if they come loose from the rockface above SR 4.

August 2008

 
In early August, WSDOT's contractor installed dowels in the rockface. The dowels will support cable netting designed to catch falling rocks.

July 2008


Contractor crews began scaling rock on July 9


Traffic on SR 4 waits as rock is scaled and cleared during a scheduled closure


A dozer clears scaled rock from the roadway so SR 4 can be reopened after a scheduled closure


Straw bales and a rockfall fence are in place to prevent scaled rock from falling into the Columbia River

January 2008

Once construction begins, crews will remove loose rock, unstable soil, trees and other debris from this slope. In addition, crews will install rock anchors to hold large rocks in place to further stabilize the rock slope above the highway. Crews will also install a cable fence along the slope to reduce the risk of rocks falling onto the highway.

SR 4 rockfall area photo
View of rockfall area from westbound State Route 4.


View of rockfall area from westbound State Route 4.


Side view of rockfall area along State Route 4.