Construction Manual

Publication Number
M 41-01
Publication Version
M 41-01.41
Publication Date
Manual Manager
Heidi Jensen; 360-705-7908
State Construction Office, Engineering and Regional Operations Division

This manual provides department construction engineering personnel instruction for fulfilling the objectives, procedures, and methods for construction administration of Washington State transportation projects. The Construction Manual is intended as a reference book.

The Construction Manual can be downloaded in pdf format and printed without charge.

Individual Chapters

Foreword (PDF 168KB)
Contents (PDF 220KB)

Chapter 1 Administration (PDF 1.3MB)
Chapter 2 Earthwork (PDF 3.7MB)
Chapter 3 Production From Quarry and Pit Sites and Stockpiling (PDF 3.1MB)
Chapter 4 Bases (PDF 365KB)
Chapter 5 Surface Treatments and Pavements (PDF 553KB)
Chapter 6 Structures (PDF 4.4MB)
Chapter 7 Drainage Structures, Sewers, and Conduits (PDF 3.2MB)
Chapter 8 Miscellaneous Construction (PDF 2.7KB)
Chapter 9 Materials (PDF 1.7KB)
Chapter 10 Documentation (PDF 1.2KB)
Chapter 11 Forms (PDF 345KB)

Revision History

M 41-01.41

M 41-01.40

M 41-01.39

M 41-01.38 

M 41-01.37 

M 41-01.36 

M 41-01.35 

M 41-01.34

M 41-01.33

M 41-01.32

M 41-01.31

M 41-01.30

M 41-01.29

M 41-01.28

M 41-01.27

M 41-01.26 

M 41-01.25

M 41-01.24 

Slow down on ice and snow.

It's easier to skid or lose control traveling at higher speeds. Give yourself more time to stop.

Carry chains, practice installing them.

Winter conditions could mean chains are required on your route. Practice putting them on your vehicle ahead of time.

Pack your winter car kit.

Carry extra supplies like warm clothing, ice scraper and brush, jumper cables and other emergency items.