The following design standards apply to most projects in the City of SeaTac.
For further clarification, please contact Engineering Division Staff at 206.973.4750.

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- 11th Edition 
WSDOT Standard Specifications-2021 Edition 
City of SeaTac Addendum to Road Standards- November 2020

Surface Water Management Design 
King County Surface Water Design Manual - (KCSWDM) 2021 Edition 
City of SeaTac Addendum to King County Surface Water Design Manual-2022 
King County Pollution Prevention Manual -(KCSPPM) 2021 Edition

As-Built Record Drawing Submittal Requirements

Lighting Design 
City of SeaTac Approved Lighting Components Table