Large gravity boulder retaining walls are what we specialize in. Rock walls are a cost effective way to eliminate steep slopes. RPC does over a thousand per year in Spokane, Boise, and within a 150 miles radius of both locations. Rock walls are not only very attractive, but also very effective. Rock retaining walls work much better than a concrete block wall. A rock wall will not allow any hydraulic water pressure to build behind it, due to the natural voids in the rock.
Our walls are built to engineering standards to meet your city and county building codes. They can be built out of different types of rock material to meet your specific needs. A great deal of our walls are built out of Basalt rock. We have built walls from 2' tall all the way to 30' tall.