Engineering Field Handbook (EFH)- Ohio Supplements
The EFH, formerly called the Engineering Field Manual (EFM), is a technical reference that can be used to design all types of conservation practices. The entire EFH can be downloaded, by chapters, from the Electronic Directive Systems (eDirectives) page (choose Handbooks; Title 210 Engineering; National Engineering Handbook; Part 650 Engineering Field Handbook).
The EFH is supplemented with information specific to Ohio. These pages are generally copied on yellow paper for filing in the handbook.
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