Minnesota Department of Transportation

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Bridges and Structures

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Bridge rating

Bridge Load Rating Manual

The Bridge Load Rating Manual contains MnDOT Bridge Office procedures for the evaluation and load ratings of bridges. Contact Yihong Gao at gao.yihong@state.mn with any questions about the manual.

MnDOT Bridge Load Rating and Evaluation Manual (PDF) October 2018
Document Date updated

 

Rating documents

County and local agencies

  • MnDOT Form RC-CL: Bridge Rating and Load Posting Report for County and Local Agencies (PDFWord)
  • MnDOT Form 90: Culvert Rating Form (PDF, Word)
  • MnDOT Form PIR-CL: MnDOT Physical Inspection Rating for County and Local Agencies (PDFWord)
  • MnDOT Form PW: Posting Worksheet (PDFWord)
  • MnDOT Form Truss R: Bridge Rating Details (PDF, Word)
  • MnDOT Posting Sign R12-5A (PDF)
  • MnDOT Form OW-CL: Application for Single Trip Overweight Permit Over TH Bridges on Local Roadway (PDF, Word)
  • AASHTOWare BrR Load Rating Examples

Trunk highways

  • MnDOT Form RC-TH: Bridge Rating and Load Posting Report for Trunk Highways (PDFWord)
  • MnDOT Form 90: Culvert Rating Form (PDF, Word)
  • MnDOT Form PIR-TH: MnDOT Physical Inspection Rating for Trunk Highways (PDFWord)
  • MnDOT Form PW: Posting Worksheet (PDFWord)
  • MnDOT Form Truss R: Bridge Rating Details (PDF, Word)
  • MnDOT Posting Sign R12-5A (PDF)