Landslide Repair

When a landslide occurs, it is often necessary to either rebuild the slope or retain a portion of land above the slide.  Rebuilding the slope can involve removing the slide debris, excavating down to more stable soil, and then rebuilding the slope in shallow, compacted sections called lifts.  Drainage improvements are usually made to the slope to improve its stability.  It is also common to use synthetic soil reinforcement (geogrid) to strengthen repaired slopes that are steep or consist of weaker soils.  In cases where the landslide cannot be repaired but property above the slide needs protection, a retaining wall can be installed along the upper portion of the landslide.  This type of retaining wall usually has a deep foundation.

Creek Bank Repair

Bank failures are usually the result of water in a creek or river channel eroding the banks.  Either the bottom (toe) of the bank is eroded away or an entire section of the bank is washed away from heavy storms (washout).  A good portion of creek bank repair work involves protection of the bank from erosion.  Bank protection can consist of rock rip rap (boulders), gabion baskets, concrete lining, prefabricated structures, and other environmentally compatible materials.