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Design Manual

Description: The Design Manual provides policies, procedures, and methods for developing and documenting the design of improvements to the transportation network in Washington. It has been developed for state facilities and may not be appropriate for all county roads or city streets that are not state highways. 

November 2015 revision package M 22-01.12 (pdf 17.2 mb)


Individual Chapters / Revision History / Revisions in Progress
Errata Page  / Project Delivery Memos

  • Publication Number: M 22-01
  • Last Modified: November, 2015
  • Version: M 22-01.12
  • Manual Managers: General Guidance and Support: John Donahue 360-705-7952 DONAHJO@wsdot.wa.gov, Chris Schroedel 360-705-7299 SCHROEC@wsdot.wa.gov; Roadside Safety and Traffic Barriers: Jeff Petterson 360-705-7246 PETTERJ@wsdot.wa.gov
  • Originators: Development Division, Design Office
  • # of Pages: 1,264
  • Subject: Design procedures and geometric criteria
  • Keywords: Design Manual, WSDOT Design Manual, Washington State Department of Transportation Design Manual, guardrail, median barrier, highway design, geometry, geometrics, design policy, design guidelines, practical design, documentation, design approval, design levels, design criteria, design matrices, roadside safety, traffic barriers, interchange, intersection, roadside
  • Related Publications:
    Plans Preparation Manual M 22-31
    Roadside Manual M 25-30
    Standard Plans M 21-01

Design Manual Individual Chapters 

Foreword
Comment Form
Technical Errata

Contents

Division 1 – General Information 

Chapter 100  Manual Description (162 kb) 
Chapter 110  Design-Build Projects (178 kb) 

Division 2 – Hearings, Environmental, and Permits

Chapter 210  Public Involvement and Hearings (606 kb)
Chapter 225  Environmental Coordination  (109 kb)

Division 3 – Project Documentation

Chapter 300  Design Documentation, Approval, and Process Review (313 kb)
Chapter 301  Design Maintenance Coordination (2.84 mb)
Chapter 305  Managing Projects (177 kb)
Chapter 310  Value Engineering (309 kb)
Chapter 320  Traffic Analysis (234 kb)
Chapter 321  Sustainable Safety (159 kb)

Division 4 – Surveying

Chapter 400  Surveying and Mapping (570 kb) 
Chapter 410  Monumentation (245 kb)

Division 5 – Right of Way and Access Control

Chapter 510  Right of Way Considerations (176 kb)
Chapter 520  Access Control (176 kb)
Chapter 530  Limited Access Control (875 kb)
Chapter 540  Managed Access Control (238 kb)
Chapter 550  Interchange Justification Report (364 kb)
Chapter 560  Fencing (259 kb)

Division 6 – Soils and Paving

Chapter 610  Investigation of Soils, Rock, and Surfacing Materials (157 kb) 
Chapter 620  Design of Pavement Structure (612 kb)
Chapter 630  Geosynthetics (31.1 mb)

Division 7 – Structures

Chapter 700  Project Development Roles and Responsibilities for Projects With Structures (103 kb) 
Chapter 710  Site Data for Structures (163 kb) 
Chapter 720  Bridges (355 kb)
Chapter 730  Retaining Walls and Steep Reinforced Slopes (1.1 mb)
Chapter 740  Noise Barriers (353 kb)

Division 8 – Hydraulics

Chapter 800  Hydraulic Design (3279 kb)

Division 9– Roadside Development

Chapter 900  Roadsides (120 kb)
Chapter 950  Public Art (370 kb)

Division 10 – Traffic Safety Elements

Chapter 1010  Work Zone Safety and Mobility (455 KB)
Chapter 1020  Signing (225 KB)
Chapter 1030  Delineation (381 kb)
Chapter 1040  Illumination (1.36 mb)
Chapter 1050  Intelligent Transportation Systems (1.2 mb)

Division 11 – Practical Design

Chapter 1100  Practical Design (465 kb)
Chapter 1101  Need Identification (141 kb) 
Chapter 1102  Context Identification (500 kb)
Chapter 1103  Design Control Selection (356 kb)
Chapter 1104  Alternatives Analysis (115 kb)
Chapter 1105  Design Element Selection (127 kb)
Chapter 1106  Design Element Dimensions (125 kb)
Chapter 1120  Preservation Projects (97 kb)

Division 12 – Geometrics

Chapter 1210  Geometric Plan Elements (320 kb)
Chapter 1220  Geometric Profile Elements (296 kb)
Chapter 1230  Geometric Cross Section (2.4 mb)
Chapter 1240  Turning Roadways (204 kb)
Chapter 1250  Superelevation (364 kb)
Chapter 1260  Sight Distance (851 mb)
Chapter 1270  Auxiliary Lanes (432 kb) 

Division 13 – Intersections and Interchanges

Chapter 1300  Intersection Control Type  (1.4 mb)
Chapter 1310  Intersections (771 kb)
Chapter 1320  Roundabouts (2.6 mb)
Chapter 1330  Traffic Control Signals (1.5 mb)
Chapter 1340  Driveways (487 kb)
Chapter 1350  Railroad Grade Crossings (830 kb)
Chapter 1360  Interchanges (1.1 mb)
Chapter 1370  Median Crossovers (99 kb)

Division 14 – HOV and Transit

Chapter 1410  High-Occupancy Vehicle Facilities (576 kb)
Chapter 1420  HOV Direct Access (1.5 mb)
Chapter 1430  Transit Facilities (1.1 mb)

Division 15– Pedestrian and Bicycle Facilities

Chapter 1510  Pedestrian Facilities (1.7 mb)
Chapter 1515  Shared-Use Paths (2.3 mb)
Chapter 1520  Roadway Bicycle Facilities (1.1 mb)

Division 16 – Roadside Safety Elements

Chapter 1600  Roadside Safety (615 kb)
Chapter 1610  Traffic Barriers (1.3 mb)
Chapter 1620  Impact Attenuator Systems (1.8 mb)

Division 17 – Roadside Facilities

Chapter 1710  Safety Rest Areas and Traveler Services (761 kb) 
Chapter 1720  Weigh Sites (2.3 mb)

Glossary



Revision History

Date

Version

Complete

Revision 

2015 November

M 22-01.12

PDF (37.4 MB)

PDF (17.2 MB)

2014 July

M 22-01.11

PDF (38.0 MB)

PDF (14.0 MB)

2013 December

Supplement

 

PDF (33.0 MB)

2013 July

M 22-01.10   

PDF (33.0 MB)

PDF (11.8 MB)

2012 July

M 22-01.09

PDF (33.1 MB)

PDF (10.9 MB)

2012 March

Supplement

PDF (1.6 MB)

2011 August

Supplement

PDF (760 KB)

2011 July

M 22-01.08

PDF (30.1 MB)

PDF (7.6 MB)

2010 July

M 22-01.07

PDF (29.2 MB)

PDF (6.7 MB)

2009 December

M 22-01.06   

PDF (30.6 MB)

PDF (8.3 MB)

2009 June

M 22-01.05

PDF (31.7 MB)

PDF (31.2 MB)

2009 January

M 22-01.04

PDF (34.4 MB)

PDF (17.4 MB)

2008 May

M 22-01.03

PDF (29.2 MB)

PDF (2.5 MB)

2007 November

M 22-01.02

PDF (28.7 MB)

PDF (7.7 MB)

2007 August

Supplement

PDF (628 KB)

2007 May

M 22-01.01

PDF (29.3 MB) 

PDF (5.6 MB)

2006 November

 

PDF (33.6 MB)

PDF (9.23 MB)

2006 June

 

PDF (7.4 MB)

2005 June

 

PDF (25.4 MB)

PDF (3.1 MB)

2005 January

 

 

PDF (10.0 MB)

2004 May

 

PDF (21.8 MB)

PDF (5.6 MB)

2003 December

 

PDF (20.5 MB)

PDF (6.7 MB)

2003 May

 

PDF (18.7 MB)

PDF (18.8 MB)

2002 December

Supplement

PDF (324 KB)

2002 September

 

PDF (25.0 MB)

PDF (4.7MB)

2002 February

 

PDF (24.9 MB)

PDF 11.9 MB)

2001 May

English

PDF (18.7 MB)

PDF (5.9 MB)

 

Metric

 

PDF (5.8 MB)

2000 May

English

PDF (20.0 MB)

PDF (5.2 MB)

 

Metric

 

PDF (4.8 MB)

1999 November

English

PDF (23.8 MB)

PDF (2.2 MB)

 

Metric

 

PDF (3.2 MB)


This abstract was last modified March 22, 2016