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Providing leadership for developing, acquiring, maintaining and distributing engineering technology to ensure high quality engineering products and services to our customers.

National Manuals and Handbooks and Washington Supplements

All national manuals and handbooks must be accessed through Functionality of this site is limited. Users will have to drill down to the proper location for additional information.

Washington Technical Notes (See eFOTG-Section I, Reference Lists, Technical Notes by Discipline, Engineering)

These following documents require Adobe Reader or Microsoft Excel.   Alternative text is not available for these publications as they can not be depicted in a narrative format. We apologize for any inconvenience. For readers requiring assistance with 508 issues please contact (509) 323-2955.

Due to the size and/or complexity of these files, it is recommended that the user right click and “Save Target As” to copy the file to your computer before trying to open it.


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Contact Information

You may send comments regarding this web site to:

Larry Johnson
State Conservation Engineer
Spokane, Washington
Telephone: 509-323-2955