Research Project

NCHRP Project 20-5, Topic 32-08 "Cost Effective Structures for Off-System Bridges"

Researcher(s)

Principal investigator: Wayne Klaiber, 515-294-8763, klaiber@iastate.edu (project list)

Co-principal investigators:

Terry Wipf, 515-294-9501, tjwipf@iastate.edu (project list)

Other authors: Francesco M. Russo

Project status

Completed

Start date: 04/01/01
End date: 06/30/02

Publications

Report: July 2004, http://trb.org/publications/nchrp/nchrp_syn_327.pdf 4.3 mb (*pdf)

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Sponsor(s)/partner(s)

Sponsor(s):Transportation Research Board

About the research

Abstract: The nations transportation system includes not only the extensive National Highway System but also the local highway systems that provide important links in the transportation network. Bridges are an essential component of these local systems. The primary focus of this synthesis is on local or off-system bridge design, construction, maintenance, financing, rehabilitation, and replacement. The definition of off-system can vary from place to place. Off-system bridges in this report will refer to those bridges typically owned and maintained by local agencies (i.e., cities and counties) and by state agencies on rural and other low volume roads. Information was gathered from several sources, including a project survey, published literature, electronic media, personal contacts, and manufacturers of bridges or bridge-related products. Several current practice areas that need improvement (e.g., design standards, replacement strategies, and maintenance) were also identified.

2711 S. Loop Drive, Suite 4700, Ames, Iowa 50010-8664
Phone: 515-294-9501 ~ Fax: 515-294-0467
The Bridge Engineering Center is administered by Iowa State University's Institute for Transportation.