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LRFD Bridge Design Manual (BDM)

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? Contact Dave Dahlberg at dave.dahlberg@state.mn.us.

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Manual Updates Date
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 (BDM) Date
Download entire manual (PDF 28 MB) June 2015
BDM Section and Description Date
Cover, Title Page, and Table of Contents (PDF 0.5 MB) June 2015
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) July 2014
6 - Steel Structures (PDF 1.2 MB) May 2009
7 - Reserved/empty -
8 - Wood Structures (PDF 0.5 MB) July 2003
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) June 2010
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
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 2014
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
2007-01 Bridge Office Substructure Protection Policy (PDF 0.5 MB) July 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
Transmittal letters Transmittal number
Title Page, Table of Contents, A. Memos (PDF 0.5 MB) 2014-04
Title Page, Table of Contents, Section 5: Concrete Structures (PDF 0.5 MB) 2014-03
Title Page, Table of Contents, Section 5: Concrete Structures (PDF 0.5 MB) 2014-02
Title Page, Table of Contents, Section 4: Structural Analysis and Evaluation (PDF 0.5 MB) 2014-01
Title Page, Table of Contents, Section 12: Buried Structures (PDF 0.5 MB) 2013-02
Title Page, Table of Contents, A. Memos (PDF 1 MB) 2013-01
Title Page, Table of Contents, A. Memos (PDF 1.8 MB) 2012-02
Title Page, Table of Contents, A. Memos (PDF 0.5 MB) 2012-01
Title Page, Table of Contents, A. Memos (PDF 0.5 MB) 2011-04
Title Page, Table of Contents, Section 15: Bridge Load Rating (PDF 0.5 MB) 2011-03
Title Page, Table of Contents, Section 2: General Design and Location Features (PDF 0.5 MB) 2011-02
Title Page, Table of Contents, Section 4: Structural Analysis and Evaluation (PDF 0.5 MB) 2011-01
Title Page, Table of Contents, Section 1: Introduction (PDF 0.5 MB) 2010-03
Title Page, Table of Contents, Section 11: Abutments, Piers and Walls (PDF 0.5 MB) 2010-02
Title Page, Table of Contents, Section 9: Decks and Deck Systems (PDF 0.5 MB) 2010-01
Title Page, Table of Contents, Section 5: Concrete Structures (PDF 0.5 MB) 2009-03
Manual Cover, Table of Contents, Section 4: Structural Analysis and Evaluation, and Section 6: Steel Structures (PDF 0.5 MB) 2009-02
Manual Cover, Table of Contents and Section 15: Bridge Load Rating (PDF 0.5 MB) 2009-01
Title Page, Table of Contents and A. Memos (PDF 0.5 MB) 2008-06
Title Page, Table of Contents and A. Memos (PDF 0.5 MB) 2008-05
Title Page and Section 2: General Design and Location Features (PDF 0.5 MB) 2008-04
Manual Cover, Table of Contents and Section 6: Steel Structures (PDF 0.5 MB) 2008-03
Manual Cover and Section 13: Railings (PDF 0.5 MB) 2008-02
Manual Cover and Section 1: Introduction (PDF 0.5 MB) 2008-01
Manual Cover, Table of Contents and A. Memos (PDF 0.5 MB) 2007-04
Manual Cover, Table of Contents and A. Memo (PDF 0.5 MB) 2007-03
Manual Cover, Table of Contents and Section 10: Foundation (PDF 0.5 MB) 2007-02
Manual Cover, Table of Contents and Section 2: General Design and Location Features (PDF 0.5 MB) 2007-01
Manual Cover, Table of Contents, Section 3: Load and Load Factors and Section 4: Structural Analysis and Evaluation (PDF 0.5 MB) 2006-05
Manual Cover, Table of Contents and Section 14: Joints and Bearings (PDF 0.5 MB) 2006-04
Manual Cover, Table of Contents, Section 5: Concrete Structures, Section 13: Railings and A. Memos (PDF 0.5 MB) 2006-03
Manual Cover and Section 2: General Design and Location Features (PDF 0.5 MB) 2006-02
Manual Cover, Table of Contents and Section 1: Introduction (PDF 0.5 MB) 2006-01
Manual Cover, Table of Contents and Section 5: Concrete Structures and A. Memos (PDF 0.5 MB) 2005-03
Manual Cover and Section 2: General Design and Location Features (PDF 0.5 MB) 2005-02
Table of Contents and A. Memos (PDF 0.5 MB) 2005-01
Manual Cover, Table of Contents and Section 9: Decks and Deck Systems (PDF 0.5 MB) 2004-04
Manual Cover, Table of Contents and Section 5: Concrete Structures (PDF 0.5 MB) 2004-03
Section 2: General Design and Location Features (PDF 0.5 MB) 2004-02
Manual Cover and Table of Contents (PDF 0.5 MB) 2004-01

MnDOT Bridge Design Workshop presentations

June 2012