Photo Courtesy of Missouri DOT Pennsylvania's Rapid Bridge Replacement Project follows on the heels of Missouri's recent rapid replacement of 802 bridges. Related Links: Bridge Industry Conference Showcases Missouri Innovations $2.6-Billion Ohio River Bridges Project Ramps Up In Louisville Informed by recent public-private partnerships (P3) and accelerated bridge construction (ABC) programs in other states, Pennsylvania is well under way with the process of combining the two concepts into its plan for addressing 614 structurally deficient bridges.The Pennsylvania Dept. of Transportation (PennDOT) late last month asked four teams to submit proposals for its Rapid Bridge Replacement Project. In a release, PennDOT
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.