BRIDGES AND STRUCTURES
All Bridge Designers Memoranda (ABD Memos)
ABD Memos are directives from the 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.
Adobe Reader is required to view these files.
Download All Current
Memos (3,296 K) Revised
December 12, 2012
Current ABD Memos
| Memo
( Right Click To Download ) |
Subject |
Issued |
Status |
|
TOC
|
Table of Contents |
December 12, 2012 |
Revised |
|
ABD 12.5 |
Revised Riprap Treatment
Standards and Guidelines |
December 10, 2012 |
NEW |
|
ABD 12.4 |
Slipforming of Parapets
Option |
August 17, 2012 |
Active |
|
ABD 12.3 |
2012 Integral Abutment Bridge
Policies and Details |
July 25, 2012 |
Active |
|
ABD 12.2 |
New Bulb T-Beam Details for
Improved Deck Removal |
April 16, 2012 |
Active |
|
ABD 12.1 |
Vehicle Collision Force |
April 16, 2012 |
Active |
|
ABD 12.0 |
AASHTO LRFD Specifications |
April 2, 2012 |
Active |
|
ABD 11.4 |
New Permanent Sheet Piling
Design Policy |
November 30, 2011 |
Incorporated |
|
ABD 11.3
(rev.) |
LRFD Design Requirements for
Precast and Cast-In-Place Box Culverts |
November 2, 2011
Revised January 27, 2012 |
Active |
|
ABD 11.2 |
New Cofferdam Policy |
August 8, 2011 |
Incorporated |
|
ABD 11.1 |
Discontinued Use of Wave
Equation Analysis of Piles |
March 3, 2011 |
Incorporated |
|
AASHTO LRFD
Spec. |
AASHTO LRFD Specification |
February 16, 2011 |
Active |
|
ABD 10.4 |
Composite Design of Negative
Moment Regions of Steel Superstructures |
November 1, 2010 |
Incorporated |
|
ABD 10.3 |
Revised Design and
Construction Policies for PPC I-Beams and Bulb T-Beams |
June 15, 2010 |
Incorporated |
|
AASHTO LRFD
Spec. |
AASHTO LRFD Specification |
May 14, 2010 |
Active |
|
ABD 10.2 |
Load Rating Guidance for
Bolted and Riveted Gusset Plates in Steel Truss Bridges |
May 11, 2010 |
Active |
|
ABD 10.1 |
Bridge Painting Policy |
April 27, 2010 |
Active |
|
AASHTO MBE |
AASHTO Manual for Bridge
Evaluation |
April 3, 2009 |
Active |
|
ABD 09.1 |
Guidelines for Structural
Assessment Reports for Contractor's Means and Methods |
March 9, 2009 |
Active |
|
ABD 08.4 |
Drainage Manual Modification \ Pipe Culverts & Storm Sewers |
November 7, 2008 |
Active |
|
ABD 08.1 |
Evaluating Existing Substructures for Reuse |
February 20, 2008 |
Incorporated |
|
ABD 07.1 |
Slipforming of Parapets Option |
June 29, 2007 |
Superseded by ABD 12.4 |
|
Archive Announcement |
Metric Manuals |
March 19, 2007 |
Active |
|
ABD 06.4 |
“LFD” Policy for PPC I-Beams
and Bulb T-Beams |
November 21, 2006 |
Retired |
|
ABD 06.3 |
Pile Data Guidelines for 2007
Std. Specs |
November 17, 2006 |
Retired |
|
ABD 06.1 |
Structural Concrete Repair |
March 16, 2006 |
Active |
|
ABD 05.4 |
Structure Geotechnical Report
Policy |
September 30, 2005 |
Incorporated |
|
