The new $21.5-million Norridgewock Bridge—one of only two modern tied-arch concrete bridges to be built in the U.S.—is taking shape over the Kennebec River in northern Maine. Photo:Courtesy Of Kleinfelder New Maine crossing replicates concrete tied-arch design, only one of two in the U.S., according to the owner. The new bridge includes a 300-ft center span and two 150-ft approach spans. Four of six transverse braces are now in place, along with 19 intermediate floor beams and three end beams. When opened this fall, it will replace a four-span concrete tied-arch bridge built in 1928, which was one of the
The growing need to collect, store and analyze the huge volumes of data collected from infrastructure project stakeholders is generating a new growth area for construction-sector firms, IT vendors and professionals.