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Home / DOT Specifications / Washington / Design Manual (M 22-01) / Design Manual (M 22-01)
📏Design Manual (M 22-01)

Design Manual (M 22-01)

WebWashington State Department of Transportation (WSDOT)2024 Standard Specifications

The WSDOT Design Manual establishes design policy for state highway projects including basic design level, geometrics, drainage, and roadside safety.

Local terminology: Washington calls its design manuals "Design Manual (M 22-01)" — the label used throughout this page reflects that convention.

Full Text — 18 Sections (2024 Edition)

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