Load Rating for Standard Bridges – Final Report for TR-785

Details

• Creators:
  Moffitt, Stephen W. ; Peterson, Jon E. ; Seager, Payton D. ; Malloy, Joseph T. ; Pritchard, Ryan P. ; Muhle, Shawn M. ; Moffitt, Emmett M.
• Corporate Creators:
  HGM Associates Inc.
• Corporate Contributors:
  Iowa. Department of Transportation ; Iowa Highway Research Board ; United States. Department of Transportation. Federal Highway Administration
• Subject/TRT Terms:
  • Bridges
  • Load factor
  • Posts
  • Load and resistance factor design
  • Structures
  • Compliance
  • Specifications
  • Standards Bridge Load Rating
  • Bridge Load Posting
  • Bridge Rating Analysis
• Publication/ Report Number:
  TR-785
• Resource Type:
  Tech Report
• Geographical Coverage:
  Iowa;United States
• Edition:
  Final Report – March 16, 2020 - December 31, 2020
• Corporate Publisher:
  Iowa Highway Research Board
• Abstract:
  In this report, seventeen Iowa secondary and primary bridge standards for three types of bridges are rated utilizing the Load and Resistance Factor methodology and AASHTO BrR Bridge Rating software, Version 6.8.4.3001. Load ratings in this report are in compliance with the AASHTO Manual for Bridge Evaluation, 3rd Edition, with Interim Specifications through 2019, and the AASHTO LRFD Bridge Design Specifications, 8th Edition. All standards were rated as multilane structures with full impact load for design and legal trucks. Permit trucks were rated as Routine or Annual permits, >5000 ADTT in accordance with MBE Table B6A-45.
• Format:
  PDF
• Funding:
  Iowa DOT Contract No. 709AD
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/79683/dot_79683_DS1.pdf
• File Type:
  [PDF - 1.67 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:7d3d91a159564a0b254522fdac3b5fc7f80f8ac2eeec7d8e4b12f51d4dddd8bd7463c7d109845f4102eb7d1e1b4204b9f5c273078a2f6658ea0876910dfd215c