Condon-Johnson & Associates has consistently introduced new technology to the fields of Shoring and Soil Nailing. In fact, CJA performed the first soil nailing project in North America in 1974, and was the first to use soil and cement mixing (DMM) methods in earth retention projects. Tiebacks to depths of 270 feet and excavation and shoring depths of 114 feet have been achieved. Using the latest operating eqipment, CJA continually looks for opportunities to improve this part of the market.