 LOS ANGELES--BUSINESS WIRE--Tutor Perini Corporation NYSE: TPC the Company, a leading civil, building and specialty construction company, announced today that Michael Smithson recently joined the Company as an Executive Vice President to lead and manage the growth and future success of the Building and Specialty Contractors segments. Previously, Mr. Smithson was a Senior Vice President at Skanska USA for nine years, where he was responsible for Skanskas heavy civil projects located wit 