Why would an established highway contractor with a history of using a crane with diesel hammer for pile driving be working at the Philadelphia Navy Yard with a sophisticated pile driving rig? That would be a fair question from anyone familiar with James J. Anderson Construction Co. Inc. (JJA), but not with Junttan pile driving equipment.
Those familiar with the Philadelphia construction market tend to associate JJA with the region’s most established companies. JJA only dates back to 1981 when founded by Jim Anderson. Since then, the company has expanded its expertise into nearly every aspect of heavy civil construction. Expansion into new areas is in JJA’s DNA.