Regent's Slide at post mile 27.8, about 40 miles south of Carmel, blocked Highway 1 beginning Feb. 9, 2024. Slide material originated 450 feet above the roadway and engulfed the highway, beach and ocean below. Crews began top-down removal April 30, 2024, and introduced remote-controlled equipment to increase production and worker safety amid ongoing slide activity and steep unstable terrain. Starting in May, crews installed dozens of 60-foot shear dowels in a 10-foot by 10-foot grid, drilling and grouting them to anchor unstable soil to more stable material and increase internal shear strength. Repairs used 20 miles of steel and eight million pounds of cement. Full-scale excavation has continued since mid-July.
Regent's Slide - at post mile 27.8, and about 40 miles south of Carmel - has blocked travelers along the famed coast highway through Monterey County since it occurred Feb. 9, 2024. Crews began top-down removal of slide material on April 30, 2024. Regent's Slide originated 450 feet above the roadway, displacing material that engulfed Highway 1 and continued down to the beach and ocean below.
By May of this year, crews began installing dozens of shear dowels, steel bars about 60 feet in length, into the slope above the work area. The shear dowels are drilled into the slope and grouted in place in a 10-foot by 10- foot grid fashion. The primary function of shear dowels is to reinforce the slope by increasing its internal shear strength.
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