Six subcontractors have been sued by the developer of a six-story parking garage in Jacksonville, Fla., that collapsed in December 2007, killing one worker and injuring 23 others. Atlanta-based developer Berkman Plaza 2 LLC named Southern Pan Services, Co., Davie, Fla.; Universal Engineering Sciences Inc., Orlando, Fla.; Infinity Reinforcing Inc., Palm Coast, Fla.; P.T.E. Strand Co. Inc., Hialeah, Fla.; A.A. Pittman & Son Concrete Co., Mandarin, Fla., and Harsco Corp. d/b/a Patent Construction Systems, Paramus, N.J., as defendants in a lawsuit seeking damages “well in excess of” $36 million. Choate Construction Co., Atlanta, is general contractor and is named in
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.