Public Works Engineering

400 W. Gowe St., Kent, WA 98032

Office Hours: Monday - Friday 8 a.m. to 5 p.m.

Phone: 253-856-5500

Fax: 253-856-6500


Kent Surface Water Design Manual

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City of Kent 2017 Surface Water Design Manual

Archive: City of Kent 2002 Surface Water Design Manual

The 2002 Kent Surface Water Design Manual (KSWDM) adopts the 1998 King County Surface Water design manual (KCSWDM) and applies to development proposals within the City of Kent. It includes all changes and deletions to the KCSWDM adopted by the City of Kent and is to be used for guidance in drainage review and design of stormwater facilities within the City.

In addition to the 2002 KSWDM, the City has adopted blanket adjustments to address specific elements within the KSWDM and changing regulations at the state level.

Chapter 5 of the 2009 City of Kent Design and Construction Standards (KDCS) references the 2002 KSWDM for the design of stormwater facilities.  Chapter 5 of the KDCS also includes requirements for easements and construction standards of stormwater systems in the City of Kent, including standard details for storm structures, appurtenances and erosion control.

Designers of storm water facilities located in the City of Kent should reference all of the above documents.