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Bridges & Structures

FHWA LRFR Implementation Webinar Series

Topic No. 17: Federal Bridge Formula Weights and State-Specific Legal Loads Web Conference Seminar

October 21, 2015

FHWA LRFR Implementation Working Group and Office of Bridges and Structuctures

You are cordially invited to this load rating webinar. Please share the information with your State's and local partners.


Section 650.313 of the National Bridge Inspection Standards stipulates each bridge is to be load rated in accordance with the AASHTO Manual for Bridge Evaluation (MBE). In accordance with the FHWA's policies, new bridges and totally replaced bridges engineered after October 1, 2010 should be load rated with the Load and Resistance Factor Rating (LRFR) method. To further support State's efforts in meeting the NBIS's requirements in load rating and FHWA's initiative of implementing the LRFR method, a series of webinars have been planned to provide continued awareness for local, regional, and State transportation agencies. These webinars will be hosted online and offered at no cost via the FHWA webinar training platform.

Who Should Attend

The target audiences for this Webinar Series are bridge and structure staff from local, regional, and State transportation agencies, FHWA Division Bridge Engineers and private consultants who want to acquire the fundamentals to rate highway bridges. Participants will be able to download the presentations at the webinars. Each webinar will focus on a specific topic that has been identified as most needed.


OCTOBER 21, 2015 1:00 PM TO 3:00 PM EASTERN TIME


This webinar is the seventeenth in this Webinar Series and will focus on federal bridge formula weights and state-specific legal loads. The objective of this webinar is to provide awareness to bridge engineers/load raters about the loads legally allowed to operate on highways without permits. Those legal loads must be included in bridge load rating and posting.

This webinar will include two presentations:

  • Tom Saad (FHWA, RC): Welcome/Introduction
  • John Berg (FHWA, Freight Management and Operations): Federal Bridge Formula and Legal Loads on Interstate Highways
  • Lubin Gao (FHWA, Bridges and Structures): State-Specific Legal Loads for Bridge Rating and Posting
  • Questions and Answers



Click on the registration link above to register for the webinar. You can also copy the link to your browser to access the registration page. Participants will receive further instruction via e-mail upon enrollment. If you have any questions, please contact Lubin Gao, Ph.D., P.E. at (202) 366-4604 or Lubin.Gao@dot.gov.

To request access to the recordings of previous webinars, please contact Lubin Gao at Lubin.Gao@dot.gov. You can also find thelinks to the recordings on FHWA's Bridge website: http://www.fhwa.dot.gov/bridge/loadrating/. We use various sources of contacts to distribute this announcement. We apologize if you have received multiple copies.

Recorded Webinars

Registration is required. You can register for an account at https://connectdot.connectsolutions.com/lrfrreg/event/registration.html.

Updated: 09/24/2015
Federal Highway Administration | 1200 New Jersey Avenue, SE | Washington, DC 20590 | 202-366-4000