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United States Department of Agriculture
Natural Resources Conservation Service

2118 W. Park Court, Champaign, IL 61821
Phone: 217/353-6600 Fax: 217/353-6676 Website:

DATE: March 11, 2010

SUBJECT:  National Engineering Handbook Part 650, Engineering Field Handbook

Purpose:  To archive the national Chapter 17 of the Engineering Field Handbook (EFH) and supplement EFH Chapter 17 with Illinois preapproved construction materials.

Expiration Date:  Upon receipt.

Explanation: NRCS National Conservation Engineering Division has archived EFH Chapter 17 – Construction and Construction Materials. Illinois NRCS will retain state level supplements in Chapter 17. This notice provides instructions for archiving Chapter 17, moving existing pipe material preapprovals from Chapter 6 to Chapter 17, and adding two new supplements.

The Illinois NRCS engineering website will be updated to include the updated Illinois supplements at

Filing Instructions: Holders of hardcopy Engineering Field Handbook binders should:

  1. Discard the following:

a. EFH Chapter 17 (an archived copy will be retained at the State Office)
b. EFH supplement IL17-55, Notice 8, dated 12-91, Corrugated Polyethylene Drainage Tubing
c. EFH supplements IL-6-107(1) through IL-6-109

  1. rint out the attached supplements on green paper and file in the EFH Chapter 17:

a. IL17-1.1 through IL17-1.5 – Design procedures for the qualification of pre-approved dual wall pipe in fills, based on 1992 bulletin IL210-2-7.
b. IL17-2.1 through IL17-2.4 – Prequalified list of dual wall pipe in fills (formerly IL6-107 through IL6-109).
c. IL17-3.1 and IL17-3.2 – Prequalified list of corrugated polyethylene drainage tubing.

  1. Print out the attached table of contents and file at the beginning of the EFH, replacing the existing table of contents.

Any questions regarding this submittal should be directed to the Area Engineer.


Ruth Book Signature
State Conservation Engineer

DIST: Partner


This attachment requires  Adobe Acrobat Reader  and Microsoft Word to view: 
EFH-NoticeIL45.doc  [DOC, 92kb]

EHF Supplemental Illinois Index
031110EFH_suppl_IL_Index.pdf (PDF, 12kb)

IL 17-1 Procedure Quality DWP In Fill
IL17-1_Procedure_qual_DWP_in_fill.pdf (PDF, 1,443kb)

IL 17-2 Preapproved DWP In Fill
IL17-2_preapproved_DWP_in_fill.pdf (PDF, 13kb)

IL 17-3 Preapproved CPT
IL17-3_preapproved_CPT.pdf (PDF, 13kb)

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