Montana Department of Transportation

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MDT Bridge Load Rating

Image of a Pratt deck truss bridge (known as the Scenic Bridge) and Milwaukee Road Railroad Bridge spanning the Clark Fork River
Pratt deck truss bridge (known as the Scenic Bridge) and Milwaukee Road Railroad Bridge spanning the Clark Fork River.

Templates

Disclaimer of Liability
Engineering data, analysis programs, and spreadsheets (herein, Programs) on this website are provided by the Montana Department of Transportation as a courtesy to contractors, consultants, local agency bridge owners and the public.

No representation or warranty, expressed or implied is made by the Montana Department of Transportation as to the accuracy and functioning of the Programs, nor shall the fact of distribution constitute any such representation or warranty, and no responsibility is assumed by the Montana Department of Transportation in any connection therewith. Your reliance on this information without independently confirming its accuracy is at your own risk. By downloading any programs or worksheets, you are agreeing to the above disclaimer.

If any discrepancies or errors are noted, please contact .

Load Rating Summary Sheet

Links will be updated as new versions are released. Please ensure that the current version is included in the load rating report submittal.

BrR Templates (Agency Specific)

The following libraries have been prepared by the MDT Bridge Management Section. Their use is not intended to be mandatory, but they are shared in an effort to reduce error and cost. To ensure greater accuracy, please notify of any discrepancies found.

Additional Analysis Spreadsheets

  • MDT CMP LRFR spreadsheet
    This Excel spreadsheet is designed to aid a qualified engineer in completing the bridge load rating analysis of a corrugated metal pipe culvert structure. Sound engineering judgment and familiarity with analysis are required to choose appropriate input values and to recognize situations that may deviate from the standard case on which these spreadsheets are based.

Measurement Forms