Hayward Baker has experience with the full range of earth retention techniques. Earth retention technology has evolved from relatively simple methods of shoring to complex subterranean reinforcement for permanent deep excavation support and stabilization of slopes. Structural retaining walls use soldier piles with lagging, sheet piles, secant piles, tangent piles, or structural diaphragm walls to resist lateral pressures from retained soil and adjacent structures, and to prevent soil raveling. Jet grouting, chemical grouting, and soil mixing construct grouted soil walls by cementing in situ soils particles together. Ground anchors provide additional lateral support for many retaining wall designs. Soil nail walls provide temporary or permanent stabilization of cuts and failed retaining walls. Anchored reaction blocks stabilize damaged or failing retaining walls.