GoKawiilCaltrans builds $400M rock shed to reopen Yosemite's Highway 140
Caltrans has started building a 675-foot concrete rock shed over Highway 140 near Yosemite National Park, at a cost of about $400 million. The structure, expected to take about five years to complete, is designed to protect the highway from rockfall near the site of the 2006 Ferguson Slide, which buried the road and forced a traffic-light-controlled detour over two bridges.