Note: National engineering manuals, handbooks, and other engineering references may be found by either going to the national directives website. If you are looking for a Handbook, click on “Handbooks” at the menu on the left side of the screen. Then click on the “+” by Title 210 – Engineering. Then click on the “+” by National Engineering Handbook. The Sections and Parts of the Handbook will be shown. Click on the reference you want to use.
These manuals provide a framework for engineering through consistent application of engineering principles, science, and professional judgment.
Our handbooks provide designers guidance in the use of basic engineering principles, techniques, and procedures for the planning, design, and maintenance of soil and water conservation practices.
National Engineering Handbook
Part 650 - Engineering Field Handbook (EFH)
- Part 650 - EFH Iowa Amendments
- Part 651 - Iowa AWMFH Amendments
These documents provide CAD users with guidance on typical NRCS CAD drawing procedures.
Iowa Engineering Forms
Survey equipment users can use these documents for guidance on typical NRCS surveying procedures using Trimble surveying equipment.