Plans Preparation Manual
This manual provides instructions and guidance for the preparation of right of way plans, contract plans, special provisions, and estimate packages for highway construction projects. It also provides the standards used in the preparation of these plans using Computer Aided Drafting and Design (CADD).
April 2022 M 22-31.09 revision package (PDF 139MB)
Individual Chapters
Foreword (PDF 12KB)
Comments (PDF 16KB)
Contents (PDF 39KB)
Division 1 Right of Way Plans (PDF 12.2MB)
Division 2 Survey Records (PDF 934KB)
Division 3 Right of Way Plans Standard Symbols and Conventions (PDF 281KB)
Division 4 Contract Plans (PDF 7.1MB)
Division 5 PS&E Standard Symbols and Conventions (PDF 418KB)
Division 6 Contract Provisions (PDF 905KB)
Division 7 Miscellaneous Contract Considerations (PDF 3.1MB)
Division 8 Contract Estimate (PDF 410KB)
Appendix 1 Structure Notes, Quantity Tabulation Sheets, and Sign Specification Sheets (PDF 274KB)
Appendix 2 Applying Professional Stamps (PDF 292KB)
Appendix 3 Transmittal Memorandums (PDF 261KB)
Appendix 4 Acronyms and Abbreviations (PDF 297KB)
Appendix 5 Addendum Preparation (PDF 643KB)
Appendix 6 Determination of Contract Time (PDF 8.1MB)
Revision History
2020 Plans Preparation Manual Revision (PDF 13.2MB)
2018 Plans Preparation Manual Revision (PDF 14.2MB)
2013 Plans Preparation Manual Revision (PDF 2.09MB)
2012 Plans Preparation Manual Revision (PDF 13.7MB)
8,683 animals crossed the Snoqualmie Pass East Project area
as recorded by WSDOT and partners in 2020 and 2021.
46% increase in Amtrak Cascades ridership to 251,000 passengers
in 2021 compared to 172,000 in 2020.
Nine wetland and stream mitigation sites across 32.7 acres added
to our monitoring program in 2021 to help offset climate change impacts.