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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.

The manual files are not currently available in an ADA accessible format. If ADA accommodations are needed, contact Dave Dahlberg, 651-366-4491.

Recent updates to manual Date updated
Transmittal No. 2019-04 – Sections 6, 13, and Memo to Designers #2013-01 (PDF) July 2019
Transmittal No. 2019-03 – Miscellaneous Changes to Multiple Sections (PDF) June 2019
Transmittal No. 2019-02 – Section 5 Concrete Structures (PDF) February 2019
Transmittal No. 2019-01 - Section 3, Section 15, and Memo to Designers #2019-01 (PDF) January 2019
LRFD Bridge Design Manual Date updated
LRFD Bridge Design Manual (PDF) July 2019
Sections Date updated
Cover, Title Page, and Table of Contents (PDF) July 2019
1 - Introduction (PDF) August 2016
2 - General Design and Location Features (PDF) October 2018
3 - Loads and Load Factors (PDF) June 2019
4 - Structural Analysis and Evaluation (PDF) August 2016
5 - Concrete Structures (PDF) June 2019
6 - Steel Structures (PDF) July 2019
7 - Reserved/empty -
8 - Wood Structures (PDF) August 2016
9 - Decks and Deck Systems (PDF) June 2019
10 - Foundations (PDF) June 2019
11 - Abutments, Piers and Walls (PDF) June 2019
12 - Buried Structures (PDF) June 2019
13 - Railings (PDF) July 2019
14 - Joints and Bearings (PDF) June 2019
Appendix A: Memos Date updated
2019-01 Temporary Portable Precast Concrete Barrier on Bridges (PDF) January 2019
2018-01 Rev01 New 30MH, 35MH, and 40MH Prestressed Concrete Beams (PDF) June 2019
2017-02 Post-Installed Anchorages for Reinforcing Bars (PDF) October 2017
2017-01 Edge-of-Deck Thickness on Bridges and Wall Coping Height (PDF) March 2017
2016-01 Single Slope Barrier (Type S) Bridge Standards (PDF) December 2016
2015-01 Concrete Mix Design Designations (PDF) August 2015
2014-02 Inclusion of Informational Quantities in Bridge Plans (PDF) December 2014
2014-01 AASHTO LRFD Article 5.7.3.4 Concrete Crack Control Check (PDF) August 2014
2012-02 Transition to New MnDOT Pile Formula 2012 MPF12 (PDF) November 2012
2012-01 Discontinued Usage of Plain Elastomeric Bearing Pads and Substitution with Cotton-Duck Bearing Pads (PDF) April 2012

MnDOT Bridge Design Workshop presentations

May 2017 workshop

June 2012 workshop