Washington State Conservation Engineering
Providing leadership for developing, acquiring, maintaining and distributing
engineering technology to ensure high quality engineering products and services
to our customers.
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 Supplements to NEM
Washington Irrigation Guide (WAIG)
Washington Supplements to AWMFH
Washington Technical Notes (See eFOTG-Section I, Reference Lists, Technical
Notes by Discipline, Engineering)
These following documents require
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
Target As” to copy the file to your computer before trying to open it.
Engineering Investigation Report -
Waste Storage Pond Near Snohomish
July 2010 (PDF;
Gun Sprinkler Irrigation Design Summary Worksheet (PDF; 95 KB)
Guard Design Worksheet (PDF; 276 KB)
Sheet ENG-523A (XLS; 27 KB)
Computation Tool (XLS; 31KB)
Engineering Tech Note 12
Design Data Worksheet (PDF; 122 KB)
Weight Calculator Spreadsheet updated 020411 (XLS; 108 KB)
Irrigation Design Summary Worksheet (PDF; 94 KB)
Rubber Tire Trough Design Package
Read Me First (DOC; 1.3 MB) (Be sure to read the Read Me
First document for instructions on downloading the zip file.)
Rubber Tire Trough Design (ZIP; 1.4 MB)
Irrigation Design Summary Worksheet (PDF; 93 KB)
Variable Frequency Drives
Construction Specification 71 (PDF; 68KB)
Economic calculator (VFD) (PDF; 212KB) Spreadsheet
for economic evaluation of pumping plant to determine if Variable Frequency
Drive is economical.
Fact Sheet (PDF; 147KB)
NHQ Tech Note -
Speed Drive for Irrigation Pumping (PDF; 2.1MB) Included by reference with WA
Eng TN 20 for evaluation of pumping plant for VFD.
Washington Small Farm Compost Bin Design (PDF; 3
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