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All Bridge Designer (ABD) Memorandums are directives from IDOT's Bureau of Bridges and Structures advising bridge designers on bridge design policy changes prior to the policy's incorporation in this office's standards and manuals.
Special Instructions: The current ABD memos are available for download. Users can download individual memos or all memos. To download an individual file to your hard drive click the link with the right mouse button, then choose "save target as." To view the file, click the link with the left mouse button. A Table of Contents (TOC) with links to all the current memos is also available. The TOC is replacing the annual written notification of changes in the status of ABD memos. After downloading, the ABD memo files and the Table of Contents file must be placed in the same directory. Files are in Adobe PDF format.
Memo | Subject | Issued | Status |
TOC | Table of Contents | 15-Jun-13 | Revised |
ABD 13.X | AASHTO LRFD 2013 Interims | 10-Jun-13 | NEW |
ABD 12.5 | Revised Riprap Treatment Standards and Guidelines | 10-Dec-12 | Active |
ABD 12.4 | Slipforming of Parapets Option | 17-Aug-12 | Active |
ABD 12.3 | 2012 Integral Abutment Bridge Policies and Details | 25-Jul-12 | Active |
ABD 12.2 | New Bulb T-Beam Details for Improved Deck Removal | 16-Apr-12 | Active |
ABD 12.1 | Vehicle Collision Force | 16-Apr-12 | Active |
ABD 12.0 | AASHTO LRFD Specifications | 2-Apr-12 | Active |
ABD 11.3 (rev.) | LRFD Design Requirements for Precast and Cast-In-Place Box Culverts | 11/2/2011 Revised January 27, 2012 | Active |
ABD 10.2 | Load Rating Guidance for Bolted and Riveted Gusset Plates in Steel Truss Bridges | 11-May-10 | Active |
ABD 10.1 | Bridge Painting Policy | 27-Apr-10 | Active |
AASHTO MBE | AASHTO Manual for Bridge Evaluation | 3-Apr-09 | Active |
ABD 09.1 | Guidelines for Structural Assessment Reports for Contractor's Means and Methods | 9-Mar-09 | Active |
ABD 08.4 | Drainage Manual Modification \ Pipe Culverts & Storm Sewers | 7-Nov-08 | Active |
Archive Announcement | Metric Manuals | 19-Mar-07 | Active |
ABD 06.1 | Structural Concrete Repair | 16-Mar-06 | Active |
Memo | Subject | Issued | Status |
TOC | Table of Contents | 15-Jun-13 | Revised |
ABD 13.X | AASHTO LRFD 2013 Interims | 10-Jun-13 | NEW |
ABD 12.5 | Revised Riprap Treatment Standards and Guidelines | 10-Dec-12 | Active |
ABD 12.4 | Slipforming of Parapets Option | 17-Aug-12 | Active |
ABD 12.3 | 2012 Integral Abutment Bridge Policies and Details | 25-Jul-12 | Active |
ABD 12.2 | New Bulb T-Beam Details for Improved Deck Removal | 16-Apr-12 | Active |
ABD 12.1 | Vehicle Collision Force | 16-Apr-12 | Active |
ABD 12.0 | AASHTO LRFD Specifications | 2-Apr-12 | Active |
ABD 11.3 (rev.) | LRFD Design Requirements for Precast and Cast-In-Place Box Culverts | 11/2/2011 Revised January 27, 2012 | Active |
ABD 10.2 | Load Rating Guidance for Bolted and Riveted Gusset Plates in Steel Truss Bridges | 11-May-10 | Active |
ABD 10.1 | Bridge Painting Policy | 27-Apr-10 | Active |
AASHTO MBE | AASHTO Manual for Bridge Evaluation | 3-Apr-09 | Active |
ABD 09.1 | Guidelines for Structural Assessment Reports for Contractor's Means and Methods | 9-Mar-09 | Active |
ABD 08.4 | Drainage Manual Modification \ Pipe Culverts & Storm Sewers | 7-Nov-08 | Active |
Archive Announcement | Metric Manuals | 19-Mar-07 | Active |
ABD 06.1 | Structural Concrete Repair | 16-Mar-06 | Active |
Illinois Department of Transportation
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2300 S. Dirksen Parkway
Springfield, IL 62764
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