Two-week notice

摘要

This summer, a mere 14-day road closure will be required to replace the 1953-constructed U.S. 6 Bridge over Keg Creek in Council Bluffs, Iowa, with a bridge that is new from its foundations to a modular concrete-steel composite superstructure. The original design by the Iowa Department of Transportation would have required an estimated six-month road closure to construct. Instead, HNTB Corp., in association with Structural Engineering Associates Inc. and Iowa State University, created an accelerated bridge construction (ABC) project that may provide a rapid renewal tool for highway departments across the country.