On April 2016, a landslide occurred at Bangko - Sei Manau road section. The area of Bangko - Sei.Manau road section km 256-257 which was the location of this study is an area that is vulnerable to landslide due to the its place at the highlands area. Landslide causes the soil on the edge of the road eroded and collapse. For coping with the slope that has been suffered landslide and preventing t…