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CAD Drawings

For the convenience of some of our users, the City is posting the CAD files of all of our Standard Plans for the 2020 edition.

CAD files for Standard Plans that have been amended are located under Amendments on the main page.

All CAD Drawings have been compressed into a zipped folder by series. 

Please contact the City of Seattle’s Construction Standards Engineer at if you have any questions.

Public Utilities

Andrew Lee, General Manager and CEO
Address: 700 5th Avenue, Suite 4900, Seattle, WA, 98104
Mailing Address: PO Box 34018, Seattle, WA, 98124-5177
Phone: (206) 684-3000

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Seattle Public Utilities (SPU) is comprised of three major direct-service providing utilities: the Water Utility, the Drainage and Wastewater Utility, and the Solid Waste Utility.