Hilfiker Retaining Walls is a fourth-generation, family-owned business operating in Eureka, California since 1902, and produces a full line of high quality retaining wall systems that have been utilized in projects world-wide. The Welded Wire Wall system is the industry leader for wire-faced MSE walls, used for crusher or truck dump applications and haul road support, regardless of height and loading. Spiralnails are the latest innovations and used to extend the life of existing structures, accommodate emergency situations, construction shoring, and foundation improvement. The company also offers engineering services and on-site technical assistance to aid in construction.