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New York State Thruway Authority
Projects & Studies

Rock Slope Stabilization & Removal

Rock Slope Stabilization / Removal 1 Rock slope stabilization or removal is provided to accommodate new roadway alignments via rock cuts or for existing unstable rock slopes to stabilize the slope and provide improved catchment area. Rock slope stabilization recommendations are based upon an evaluation from rock cores, amount of exposed bedrock, existing site conditions and amount of rock present. Proposed cut angles (angle of the rock face measured parallel from the roadway surface) are based upon rock type, bedding orientation, fracture orientation, and slope geometry. Recommended cut angles are the steepest angle which will provide a stable, low maintenance slope. Catchment ditches prevent falling rock from reaching the roadway. Other methods of mitigating an existing slope may include rock scaling, rock bolts, slope mesh, buttresses, and rock fall barriers.

Rock Slope Stabilization / Removal 2 Rock Slope Stabilization / Removal 3