CalTrans is working on the Buckhorn Summit slide area on State Route 299, but motorists may notice the project taking a little longer than originally expected.
During excavation, crews encountered more moisture in the slope than anticipated. To ensure a safe and long-lasting repair, engineers adjusted the construction approach. Crews are now using a stabilization fabric with layers of base rock to rebuild the embankment, along with a permeable rock layer to help groundwater drain safely from the slope.
Additional time was also needed to locate and properly abandon an existing culvert that contributed to the original slide.
K-rail has been installed in the area to protect workers and the traveling public, and geotechnical teams continue to monitor conditions as work progresses.
These changes are necessary to deliver a durable fix and keep the roadway safe for everyone who travels through the area.


