Investigators are looking into the cause of a crane-boom failure that killed a worker at the construction site of Motiva’s Port Arthur refinery on April 19. The worker killed has been identified as Stewart Wayne Shaver, 41, who was working for Beacon Construction, a subsidiary of Bechtel Corp. Francis Canavan, a spokesman for Bechtel, wouldn’t comment on the circumstances surrounding the incident, saying it was still under investigation. However, he did say the crane used was a Bechtel-owned Link-belt RTC-8090 Series II, a 90-ton rough-terrain crane. The refinery is undergoing a 325,000-barrel-per-day expansion by a joint venture of San Francisco-based
Arch dams, classically curved monoliths situated in narrow valleys, are not as common as other types of dams, such as embankment dams and gravity dams. ENR takes a look at some of the biggest arch dams in the world, both completed and under construction.