
Archived Surface Water Design Manuals
King County, Washington
This page contains links to outdated stormwater documents archived for future reference for cases where they're referenced in municipal codes.
Older (inactive) versions of the Surface Water Design Manual (SWDM)
- 2005 SWDM (30.06 MB)
- 1998 SWDM (40.64 MB)
- 1990 SWDM (25.27 MB)
- 1979 SWDM (10.43 MB)
- 1977 SWDM (3.37 MB)
- 1969 SWDM (2.03 MB)