ASPIRE is a quarterly magazine published by PCI in cooperation with the associations of the National Concrete Bridge Council. The editorial content focuses on the latest technology and key issues in the Concrete Bridge Industry.
Issue link: http://www.aspiremagazinebyengineers.com/i/306183
38 | ASPIRE , Spring 2011 F H WA F H WA T he Federal Highway Administration's ( F H WA ) E v e r y D a y C o u n t s ( E D C ) initiative is designed to shorten project delivery, accelerate innovative technology deployment, and "go greener." The focus of this article is on accelerated bridge construction (ABC) using prefabricated bridge elements and systems (PBES) in support of the initiative. In the next issue of ASPIRE™, we will share the lessons learned from the regional EDC Innovation Summits, and case studies of states that are implementing concrete PBES in the EDC Initiative. Everyone Counts Essential to the success of the initiative is the engagement of our leadership, our workforce, our partners, and our stakeholders. Everyone plays an important role in EDC. A collaborative process engaging representatives from FHWA, state DOTs, local agencies, industry, academia, and other stakeholders was used to identify and select technologies for the initiative. The five technologies selected for the initial phase of deployment are: warm-mix asphalt, adaptive signal control technology, highway safety edge, geosynthetic reinforced soil, and PBES. Deployment teams were then formed for developing implementation, marketing, and training roadmaps for each of these technologies. training The deployment team for PBES developed eight modules for training FHWA field personnel in preparation for a national rollout of EDC. Training topics included defining and exploring PBES, understanding details and methods of ABC, and guidelines for communicating these issues effectively. The training phase is very important as the states begin to implement EDC this year. EdC innovation summits F H WA p a r t n e r e d w i t h t h e A m e r i c a n Association of State Highway and Transportation Officials (AASHTO) to host 10 regional EDC Innovation Summits that were strategically located throughout the United States. These 1½-day summits were supported by a wide range of partners and stakeholders, including the A ssociation of General Contractors of America, the American Road and Transportation Builders Association, the National Association of County Engineers, the American Public Works Association, the Local and Tribal Technical Assistance Programs, the American Council of Engineering Companies, and various state and federal resource agencies. The purpose of the summits was to roll out a proposed model that could be used by the states to implement the EDC initiative and to initiate discussions that would lead to the development of action plans by the states. An EDC initiative forum has been created on the FHWA website to ser ve as a market place of ideas and opinions from people in the transportation community. Several prominent executives of the par tner and suppor ting organizations shared their opinions in the forum. The internet address of the EDC Forum is: http://www.fhwa.dot.gov/ever ydaycounts/ forum/whyinnov_nadeau.cfm. Prefabricated Bridge Elements and systems For the EDC initiative, PBES is defined as b r i d g e s t r u c t u r a l e l e m e n t s a n d s y s t e m s that are built off the bridge alignment to accelerate on-site construction time relative to conventional practice. Conventional practice is described as nonadjacent girders that have a cast-in-place concrete deck and a cast-in-place concrete substructure. W i t h P B E S , m a n y t i m e - c o n s u m i n g EvEry day CouNts: the FHWa technology deployment initiative by Claude Napier, Lou Triandafilou, and M. Myint Lwin, Federal Highway Administration During a 1-night closure of I-15 near American Fork, Utah, an entire span was moved 1200 ft from a fabrication staging area to its final position on the abutment and bent. In total, four spans were moved on self-propelled modular transporters with 1-day highway closures each. The longest span was 191 ft 9½ in. (For more information about the Pioneer Crossing Interchange, see the Winter 2011 issue of ASPIRE, p. 16.) Photos: FHWA. accelerating Bridge Construction Book_Spr11.indb 38 3/30/11 5:10 PM