FDOT Modifications to LRFR | Jan 2008

1 – INTRODUCTION |
# 1.1 PURPOSE Add the following: Florida Department of Transportation revisions and additions to LRFR address requirements to load rate bridges in Florida. Conform to the date specific AASHTO Publications listed in SDG I.6 References. | C1.1 Add the following: Unless there is a change in condition of the bridge, an existing load rating using allowable stress method or load factor design is not required to be load rated with LRFR.
# 1.2 SCOPE Add the following: Additional Sections and procedures have been added to address Florida's unique bridges |
# 1.3 APPLICABILITY Add the following: Florida Administrative Code 14-15.002, Manual of Uniform Standards for Design, Construction, and Maintenance for Streets and Highways (Commonly known as the "Florida Greenbook") requires load rating for all bridges in Florida. | C1.3 Add the following: Do not use previous editions of the AASHTO Manual for Condition Evaluation of Bridges. The load rating methods from these earlier publications are incorporated in LRFR Appendix D.6.
# 1.5 DEFINITIONS AND TERMINOLOGIES Add the following: Posting Avoidance Techniques – Applying engineering judgment to a load rating by modifying the specification defined procedures through use of Variances and Exceptions (as defined in the FDOT Plan Preparation Manual). See Appendix F.6 for Posting Avoidance details and requirements |

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