摘要: |
For some agencies bridge replacement costs are considered to be the highest proportion of funding needs among the three bridge improvement alternatives of maintenance, rehabilitation, and replacement. Estimating the bridge replacement cost is therefore a very important component of any bridge management system implemented in response to the Intermodal Surface Transportation Efficiency Act of 1991. In response to this need analytical procedures were developed for estimating the costs of the bridge structure, roadway improvements, and engineering for budgeting purposes. Methodologies for predicting the new bridge length, width, and maximum span length, which were found to affect the total cost of bridge replacement, on the basis of existing bridge and roadway data characteristics, were also developed. |