Abstract: It has become well known that the roadway infrastructure in the United States has been deteriorating over the pst 20 years. Recently, the Federal Highway Administration has listed nearly 50 percent of the countries bridges as either structural deficient or functionally obsolete. In this group, approximately 75 percent are located on rural or secondary roads and are in the small to medium span range. In order to prioritize the structures in most need of repair or replacement, inspection methods need to be introduced that will take into account all types of bridges including those constructed of concrete, steel and timber. !28
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