A solution delivered to CODELCO - CHILE El Teniente mine by SIGA Mineria y Geotecnia S. A. to an instability and rock fall from an upper slope located at kilometer 25.5 at El Cobre highway is presented. This highway is the main transportation route for personnel and supplies for the underground copper El Teniente mine, thus road safety is paramount for the organization. A total of four stabilization alternatives were considered for the slope. The stabilization approach considered: 1) Spider mesh and rock bolts, 2) stabilization with cables, 3) stabilization with shotcrete and localized rock bolts and 4) reduce the slope angle. The options identified were evaluated using the Analytical Hierarchy Process methodology based on a decision matrix involving criterion for suitability, construction, durability, visualization and maintenance. Cost estima-tion for the selected stabilization approach is included.