Standard Specifications

• Standard Specifications 2006 (5.19 MB, .pdf)
• Division 8-21 Permanent Signing
• Division 9-28 Signing Materials and Fabrication

Amendments to Standard Specifications and GSP's 2006

• Division 8-21  Permanent Signing (10.7Kb, .pdf)
• General Special Provisions (GSP's)

Standard Plans

• Standard Plans
• Section G:  Signs and Sign Supports

Design Manual

• Design Manual - Design Policy (26.2 MB, .pdf)
• Design Manual, Chapter 820
• Supplement to Design Manual, Chapter 820 - Sign Lighting (28 KB, .pdf)

Traffic Manual

• Traffic Manual - Chapter 2 (1.41 MB, .pdf)

Manual on Uniform Traffic Control Devices (MUTCD)

• MUTCD
• Washington State Modifications

Sign Fabrication Manual

 Wind Load Charts for Sign Posts

• Timber Posts
• Wide Flange "H-Beam" Steel Posts
• Perforated Square Steel Tube Posts
• Laminated Wood Box Posts
• Round Steel Pipe on PL, PL-T, and PL-U Supports