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LRFD Bridge Design Manual

The LRFD Bridge Design Manual contains MnDOT Bridge Office procedures for the design, evaluation and rehabilitation of bridges. Except where noted, the design provisions employ the LRFD methodology set forth by AASHTO. Questions about the manual? Contact Dave Dahlberg at dave.dahlberg@state.mn.us.

Recent updates to manual Date updated
Transmittal No. 2016-02 - Section 11 (PDF 0.5 MB) July 2016
Transmittal No. 2016-01 - Section 8 (PDF 1.7 MB) May 2016
Transmittal No. 2015-03 – Section 5 and Memo to Designers (PDF 0.5 MB) August 2015
Transmittal No. 2015-02 - Sections 3 and 4 (PDF 0.5 MB) June 2015
Transmittal No. 2015-01 - Section 3 (PDF 0.5 MB) May 2015
LRFD Bridge Design Manual Date updated
Download entire LRFD Bridge Design Manual (PDF 24 MB) July 2016
Sections Date updated
Cover, Title Page, and Table of Contents (PDF 0.5 MB) July 2016
1 - Introduction (PDF 0.5 MB) December 2010
2 - General Design and Location Features (PDF 1.3 MB) September 2011
3 - Load and Load Factors (PDF 0.5 MB) June 2015
4 - Structural Analysis and Evaluation (PDF 0.5 MB) June 2015
5 - Concrete Structures (PDF 2.5 MB) August 2015
6 - Steel Structures (PDF 1.2 MB) May 2009
7 - Reserved/empty -
8 - Wood Structures (PDF 1 MB) May 2016
9 - Decks and Deck Systems (PDF 0.5 MB) March 2010
10 - Foundations (PDF 0.5 MB) June 2007
11 - Abutments, Piers and Walls (PDF 1 MB) July 2016
12 - Buried Structures (PDF 0.5 MB) September 2013
13 - Railings (PDF 1.1 MB) May 2008
14 - Joints and Bearings (PDF 0.5 MB) August 2006
15 - Bridge Load Rating (PDF 0.5 MB) October 2011
Appendix A: Memos Date updated
2015-01 Concrete Mix Design Designations (PDF 0.5 MB) August 2015
2014-02 Inclusion of Informational Quantities in Bridge Plans (PDF 0.5 MB) December 2014
2014-01 AASHTO LRFD Article 5.7.3.4 Concrete Crack Control Check (PDF 0.5 MB) August 2014
2013-01 Conversion from Metric to U.S. Customary Rebar Designations (PDF 1.4 MB) April 2013
2012-02 Transition to New MnDOT Pile Formula 2012 MPF12 (PDF 5.1 MB) November 2012
2012-01 Discontinued Usage of Plain Elastomeric Bearing Pads and Substitution with Cotton-Duck Bearing Pads (PDF 1.4 MB) April 2012
2011-03 Interim Guidance for Installation of Temporary Barriers on Bridges and Approach Panels (PDF 1.6 MB) December 2011
2011-02 Barrier Placement on Bridge Decks and Approach Panels and Taper Rate for Concrete Barrier Transitions (PDF 0.5 MB) September 2011
2008-02 Truss Bridge Gusset Plate Analysis (PDF 0.5 MB) October 2008
2008-01 Prestressed Concrete Design - Calculation of Prestress Losses and Beam Camber and Deflection (PDF 0.5 MB) September 2008
2007-02 Adhesive Anchords Under Sustained Tensile Loads (PDF 0.5 MB) October 2007
2006-01 New MN63 Prestressed Concrete Beams (PDF 0.5 MB) May 2006
2005-03 New MN45 and MN54 Prestressed Concrete Beams (PDF 0.5 MB) November 2005
2005-02 Discontinue Use of Cast Bearing Option (PDF 0.5 MB) November 2005

MnDOT Bridge Design Workshop presentations

June 2012