Jack Waldron, URS Corp.'s vice president of design-build for the West group in Santa Ana, was promoted to senior vice president and national director, transportation design-build projects. Waldron is responsible for leading the URS transportation design-build practice for all modes, including highways, bridges, rail transit, freight rail, airports and marine ports. Waldron began his career with URS in 1986 and served as its California transportation division manager until 2001. He was chief operating officer at T.Y. Lin for five years before rejoining URS.
Tim Youngpeter has joined ARB Structures Inc. as business development manager. Youngpeter has more than 30 years of construction and development experience and will focus on a long-term growth plan for full-service, design-build parking structures and structural concrete work in Southern California. He is based in Lake Forest.