A small precast-concrete bridge in New Jersey is being replaced with a hybrid-composite beam structure that could have a service life of 100 years. This is the third project using the technology, which combines a glass-fiber reinforced shell, self-consolidating concrete for compression reinforcement and high-strength continuous steel fibers for tension reinforcement. Photo: HC Bridge Co., LLC Hybrid-composite beam in New Jersey was installed with an excavator. HC Bridge Co. LLC, Chicago, is supplying beams for the $1.34-million state Rte. 23 Peckman’s Brook Bridge in Cedar Grove, N.J. The 50-year-old four- lane, 66-ft-wide, 30-ft-long bridge is considered structurally deficient and is
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.