The Summer 2013 edition of Highway Builder has been mailed to subscribers. An electronic (pdf) version is also available for download (see the right column of this page).
the FHWA PA Division Lead Bridge Engineer
Accelerated bridge construction or ABC is intended to significantly reduce the on-site construction time required to construct, replace or rehabilitate bridges. Reducing time benefits the public as traffic delays and detours are reduced or eliminated. ABC can be achieved in many ways including the use of alternative or innovative contracting methods, construction methods, structure types (deck, superstructure and/or substructure), geotechnical solutions, and utility relocation methods among other things. ABC may at times also be the lowest cost solution, for example when construction stages are reduced, when there are substantial ancillary costs like when working around rail traffic, or when prefabrication allows for more cold weather work, less environmental impact or the ability to work during seasonal date restrictions.