Changelog

Major Updates

• 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• 104.5.2 - Removed outdated riprap sizing figure.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• 104.8 - Removed outdated reference to PDM.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.
• 106.5.2 - 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.
• 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 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.

Minor Updates

• Adjusted TOC for new sections