Three U.S. companies showcased their engineering expertise as the world watched the dramatic rescue of 33 Chilean gold and copper miners trapped nearly a half-mile underground for more than two months. The miners miraculously survived an Aug. 5 shaft collapse at the San Jose mine in the Atacama desert about 500 miles north of Santiago. Photo: Courtesy Of Center Rock, Inc., Berlin, Pa. American operators used U.S.-made rig and drill bits to bore an escape shaft to miners trapped underground since Aug. 5. Layne Christensen Co., a Mission Woods, Kan.-based firm ranked 18th on ENR’s Top 200 Environmental Firms list,
The market is generally healthy and steadily growing, and margins are up for large specialty contractors. Further, advances in design tools and owner demand for collaboration are giving subcontractors a seat at the table early on in projects.