Bridge management for the 21st century
Abstract: Bridge management has been a subject of intense interest and development for the past 10 years. In support of improved bridge management, FHWA funded the development of the Pontis bridge computer program, which is now in use by approximately 40 of the 50 states. In addition, many new guide specifications have been produced to assist bridge managers in their efforts to better manage the nation's aging bridge inventory. The AASHTO Subcommittee on Bridges and Structures has taken the lead along with FHWA in implementing the improved bridge management systems. California and a few other states have been critical of the current ranking system for bridge maintenance and have been working to develop an improved performance measure. The bridge health index (HI), an improved and more comprehensive numerical rating system that uses the element inspection data to determine the remaining asset value of a bridge or network of bridges, is discussed. The HI is more consistent with the element-level evaluation data colle...
Cites background from "Bridge management for the 21st cent..."
...The Federal Highway Administration~FHWA! estimates that an annual $50 billion would be necessary to maintain the roads their present condition, and $215 billion would be needed to re habilitate all deficient roads and bridges~Brecher 1995; Roberts and Shepard 2000!....
...Furthermore, a recent FHWA study indicated that one-third of existing bridges in the United States are struc turally deficient, 10% of pavements require immediate repair, an 60% of pavements need rehabilitation~Brecher 1995; Roberts and Shepard 2000!....
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