On Danbeck Avenue in Santa Rosa the owners had their rock retaining wall and soils above slide onto the roadway. Caused by the prolonged heavy winter rains in early 2017. Their engineer designed the replacement wall to be a two tiered system of concrete 4’ by 2’ long blocks. After excavations, removal of slide materials and base layer of rock that we placed for the base of the concrete blocks to sit on. Blocks were installed in an overlapping fashion. Drainage was then placed behind these walls.