Simple bridge security inspection : final report, September 2006.
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2006-09-01
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Edition:Final report; 01/01/06-10/31/06.
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Abstract:Bridges are among the most visible targets for terrorists since their destruction will have an
immediate as well as long-term economical and psychological impact on the nation.
Enhancing bridge security is key to improving homeland security and it entails several
steps including on-site assessment, analysis of different security components, and
implementing some mitigation measures that will enhance bridge security. Current
guidelines for bridge security assessment are insufficient. Several sessions were initiated
by the FHWA, AASHTO, and ASCE to provide Federal and State Departments of
Transportation (DOT’s) with general guidelines for safety and security assessment of
bridges. Literature review of bridge security showed that there is a need to develop
methods to identify critical bridges for security hazards and to provide engineering
standards and guidelines for bridge security design to reduce their vulnerability to attacks.
In particular, there is a need to better understand structural response of key components of
a bridge to mitigate collapse, loss of life, and disruption of traffic. A simple bridge security
checklist was developed to provide on-site assessment of bridge security. The developed
checklist was implemented on a Tablet PC and applied to various bridge case studies to
assess their vulnerability and security risk.
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