Design - 2021 Active Design Manual Revisions

The most current WSDOT Design Manual is M22-01.19 dated September 2020 and is available on the Design Manual Abstract Page: http://www.wsdot.wa.gov/Publications/Manuals/M22-01.htm

110 - Design-Build Projects

  • Updated Project Delivery Method & Exhibit 110-1

Current Status: Statewide review: DM Chapter 110 State Draft (docx 148 kb)

300 - Design Documentation & Glossary

  • Updated Project Delivery Method
  • Adding Kinds of Document Changes. Errata, Supplement, Amend, and Supersede
  • Combining Exhibits 300-3 and 300-4 into Exhibit 330-3
  • Glossary – Adding Terms

Current Status: Statewide Review: DM Chapter 300 State Draft (docx 87 kb)

610 - Investigation of Soils

  • Adding Well Decommissioning

Current Status: Internal review

1060 - Fall Protection (New Chapter)

  • Created new Chapter 1060-Worker Fall Protection by extracting Section 730.04 from Chapter 730.
  • Updating Worker Fall Protection Selection and Rules

Current Status: Statewide Review: DM Chapter 1060 State Draft (docx 38 kb)

1010 - Work Zone Safety & Mobility

  •  Added Transportation Systems Management and Operations (TSMO)
  • Updated Transportation Management Plan (TMP)
  • Added Smart Work Zone System (SWZS)

Current Status: Statewide Review: DM Chapter 1010 State Draft (docx 48 kb)

1120 - Preservation projects

  • Updating guidance on Roadside Safey Devices
  • Updating guidance on Rumble Strips
  • Rumble Strips on BST Projects

Current Status: Statewide Review: DM Chapter 1120 State Draft (docx 37 kb)

Combined Chapters 100, 321, 1100, 1101, 1102, 1104, 1105, 1410

  • Inserting Executive Order 1090.01 – Advanced Practical Solutions
  • Inserting Transportation Systems Management and Operations (TSMO)
  • Explaining BOD Exemptions

Current Status: Statewide Review: Combined DM Chapters 100, 321, 1100, 1101, 1102, 1104, 1105, 1410 State Draft (docx 81 kb)

Combined Chapters 530, 560, 720, 1340, 1350, 1510, and 1515

  • Renaming “Protective Screening” and “Screening for highway structures” to “Bridge Fence
  • Clarifying Design Vehicle Guidance for Driveway Design
  • Writing out as many of the term “Hazard” as Possible from the Design Manual

Current Status: Statewide Review: Combined DM Chapters 530, 560, 720, 1340, 1350, 1510, 1515 State Draft (docx 2.1 mb)

Combined Chapters 950, 1020, and 1360

  • Removing lights on overhead signs
  • Fixing Striping Shown on Exhibit 1360-11a & Exhibit 1360-11b
  • Adding HQ traffic to Public Art Specialty Services Team

Current Status: Statewide Review: Combined DM Chapters 950, 1020, 1360 State Draft (docx 1 mb)

Combined Chapters 1220 & 1260

  • Zero Length Vertical Curves
  • Replacing guidance for Sag Vertical Curves
  • Removing comment about continuous illumination

Current Status: Statewide Review: Combined DM Chapters 1220, 1260 (docx 27 kb)

Associated spreadsheet for Sag Vertical Curves: Sag Vertical Curves (xlsx 28 kb) 

Combined Chapters 1600, 1610, and 740

  • Defines “Roadside Safety Device”
  • Giving choices for the Clear Zone Inventory Form
  • New Exhibit 1600-X Existing and Design Clear Zone Plan View
  • Barrier in Diverging Diamond Interchange Medians
  • Changing “Roadway Rumble Strips” to “Transverse Rumble Strips”
  • Site Constraints to Barrier Placement
  • Guidance for Barrier Near Noise Walls

Current Status: Statewide Review: Combined DM Chapters 1600, 1610, 740 State Draft (docx 258 kb)

Contact Us

John.Tevis@wsdot.wa.gov
360-705-7460
John.Donahue@wsdot.wa.gov 
360-705-7952