Changelog

This page contains general descriptions of the changes made to each Manual edition. See Revision History for detailed changes to each wiki page.

2024 Revisions

Major Updates

• 101.5.2 - Updated to latest AASHTO LRFD specs.
• 103.7.1.5 - Replaced stream flow with channel migration and removed reference to list of approved walls.
• 104.3.4.6 - Updated Sea Level Rise guidance.
• Appendix 104-3 - Updated Hydraulic Data Summary Sheet.
• 106.9.5 - Updated de-bonding reference to new AASHTO LRFD reference and deleted de-bonding guidance which is now in AASHTO.
• 107.7.5.4 - Clarified design equations for culvert scour aprons.
• 205.10.1 - Deleted the modifications to the AASHTO LRFD due to updates and added exceptions from the updated LRFD table.
• 205.14 - Deleted due to AASHTO LRFD updates.
• 210.5.2.2 - Renumbered and applied a heading due to LRFD updates.
• Section 300 updates:
  • 301.01 - Updated design specifications
  • 301.05 - Added example sequence of construction notes.

Minor Updates

• Various formatting fixes.
• Various reference updates.

2022 Revisions

Major Updates

• General
  • Updated all links, references, and form thumbnails to the new Road Design Manual and QC/QA Manual.
  • Updated various ASTM and AASHTO material and testing references.
  • Updated the term PoDI to include Involvement rather than the former Interest per FHWA guidance.
  • Replaced the term Fracture Critical Member and the acronym FCM with Non-redundant Steel Tension Member and NSTM per most recent FHWA guidance.
• 101.3 - Added wiki specific manual update information, removed old information, and moved section from 101.4.6 to 101.3.
• 102.5.1 - Changed Project Development Process to reference the Bridge specific one.
• 102.5.5 - Added Concept Plans to the chronology of submissions.
• 103.6.2 - Section has been rewritten to include more abutment types and update selection preferences.
• 103.9 - ABC section rewrite.
• 104.1.5 - Updated topographic data and survey information.
• 104.2 - Updated to current SIR.
• 104.2.4 - Updated hydrologic analysis method selection guidance.
• 104.2.5 - Added evacuation route criteria.
• 104.2.6 - Revised confidence interval discussion and guidance.
• 104.3.4.7 - Updated to most recent publication of HEC-25.
• 104.4.4 - Clarified general scour analysis guidance for rigid frames and substructure footings.
• 104.4.5 - Revised scour countermeasure design guidance for rigid frames.
• 104.4.5.1 - Added guidance for larger riprap alternatives.
• 104.5.4 - Revised pump diversion guidance.
• 104.5.2 - Removed outdated riprap sizing figure. Updated bank protection references.
• 104.8 - Removed outdated reference to PDM.
• 104.9 - Updated References.
• 106.3.1.2 - Added preference to minimize differential deflection between beams and warning about differential deflection at time of deck pour.
• 106.4.2.4 - Added statement about differential deflection between beams when calculating haunch dimensions.
• 106.4.2.4 - Corrected haunch reinforcement verbiage.
• 106.5.2 - Added guidance on slip-forming barrier.
• 106.8.7.1.3 - Changed paint colors for structural steel.
• 106.8.9.1.2 - Updated wind loading design requirements.
• 106.8.9.1.3 - Updated fit condition guidance for cross-frames.
• 106.9.7 - Inserted new section to refer to the new section 205.9.2.3.2b.
• 106.10.9.1 - Deleted language redundant with the Standard Specifications and welding code.
• 107.3 - Updated sub-foundation concrete depth to rock.
• 107.3.2 - Added guidance for spread footings partially bearing on rock.
• 107.3.5.3 - Adjusted MSEW step heights.
• 107.4.1 - Rewrite of Semi-integral and Integral abutment sections.
• 107.6.1 - Added guardrail clearances from MSE walls.
• 108 - Replaced all of section 108 with reference to the BLRM.
• 109.11.3.3 - Added splash zone definition.
• 205.9.2.3.2b - Added departmental preferences for tensile stress limits of prestressed concrete beams.
• Section 300 revisions:
  • Added reference to specific designer notes throughout all details.
  • Revised details (click for individual changelogs):
    301.01 | 301.03 | 301.04
    305.02
    310.01 | 310.02
    315.01
    325.01 | 325.02 | 325.03 | 325.04 | 325.05
    330.02 | 330.03
    335.01 | 335.02
    345.01
    350.01 | 355.01 | 360.01

Minor Updates

• Adjusted Table of Contents for new and moved sections
• Section 300:
  • Renamed all pdf files to follow naming convention Detail XXX.XX.pdf.
  • Uploaded all dgn files following same naming convention as pdf files.
  • Categorized all pdf and dgn files in Category:300 - Typical Bridge Design Details.
• Various formatting fixes
• Renamed (wiki move) articles for consistency (redirects maintain current links):
  • Moved 101- Introduction to 101 - Introduction.
  • Moved 103 – Bridge Geometry and Structure Type Selection to 103 - Bridge Geometry and Structure Type Selection (hyphen).
  • Moved 104 – Hydrology and Hydraulics to 104 - Hydrology and Hydraulics (hyphen).

Pre-2022 Revisions

Before the 2022 revision, the manual was maintained in PDF format revisions were tracked in an Excel spreadsheet.