OC 405 Partners, the Joint Venture of OHL USA, Inc. (OHL) and Astaldi Construction Corporation (Astaldi), in conjunction with ... exclusive subcontractors, Myers and Sons Construction and All American Asphalt, have teamed up to provide the Orange County Transportation Authority with some of the greatest minds in the industry to design and build the I-405 Improvement Project. We are the Team to deliver the I-405 Project! read more