Legal Truck Loads and AASHTO Legal Loads for Posting

This report contains the findings of research performed to develop recommended revisions to the legal loads for posting as depicted in the "Manual for Condition Evaluation of Bridges" and the "Guide Manual for Condition Evaluation and Load and Resistance Factor Rating (LRFR) of Highway Bridges." The report details the development of the new loads and includes recommended revisions to the manuals to incorporate these loads. The material in this report will be of immediate interest to bridge managers and load raters. The research identified and quantified the types of short multi-axle legal vehicles operating on the public thoroughfares and the subset of these vehicles that cause overstressing.

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