Design Standards

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The following design standards apply to most projects in the City of SeaTac.
For further clarification, please contact Engineering Division Staff at 206.973.4720.

Transportation Design & Construction Standards
King County Road Design and Construction Standards - 2016 Edition
Manual on Uniform Traffic Control Devices - (MUTCD) 2009 Revised 2012
Institute of Transportation Engineers Trip Generation Manual- 9th Edition
WSDOT Standard Specifications- 2016 Edition 

City of SeaTac Addendum to Road Standards -2017

Surface Water Management Design
King County Surface Water Design Manual - (KCSWDM) 2016 Edition
King County Pollution Prevention Manual -(KCSPPM) 2016 Edition
City of SeaTac Addendum to King County Surface Water Design Manual-2017