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Illinois NRCS Engineering Standard Drawings

Grade Control Structures

NOTICE—The following standard drawings have been developed to assist in the design of typical NRCS engineering practices in Illinois. Before using any of the standard drawings or details, the designer should verify that the standard applies to the site and that the design limitations are not exceeded. Standard drawings are to be adapted as part of site specific designs that shall be reviewed and approved by qualified individual with appropriate approval authority.

The files listed below are available in following formats:

1. DWG - AutoCAD drawing.  To save a dwg file, point at the underlined hyperlink, then SHIFT + LEFT CLICK
2. DXF - Drawing Exchange Format generic CAD drawing. 
3. PDF - Adobe Acrobat Reader for viewing and printing only (no editing).
4. DWF - AutoDesk DWF Viewer for viewing and printing only (no editing).

Date IL-ENG-#
Illinois NRCS Engineering Drawing Title AutoCAD
DWG 		DXF CAD PDF AutoCAD
DWF 
5/05 Drop Spillway 12A.dwg 12A.dxf 12A.pdf 12A.dwf
5/05 Toewall 12B.dwg 12B.dxf 12B.pdf 12B.dwf
5/09 Fabricated Corrugated Aluminum Toewall Drop Spillway General Layout Sh 1 of 3 117A.dwg 117A.dxf 117A.pdf 117A.dwf
5/09 Fabricated Corrugated Aluminum Toewall Drop Spillway General Layout Sh 2 of 3 117B.dwg 117B.dxf 117B.pdf 117B.dwf
5/09 Fabricated Corrugated Aluminum Toewall Drop Spillway General Layout Sh 3 of 3 117C.dwg 117C.dxf 117C.pdf 117C.dwf
10/09 Concrete Block-Lined Chute Sh 1 of 2 122A.dwg 122A.dxf 122A.pdf 122A.dwf
 4/07 Concrete Block-Lined Chute Sh 2 of 2 122B.dwg 122B.dxf 122B.pdf 122B.dwf
9/08 Fabricated Corrugated Aluminum Double Wingwall Toewall Drop Spillway General Layout 123A.dwg 123A.dxf 123A.pdf 123A.dwf
9/08 Fabricated Corrugated Aluminum Double Wingwall Toewall Drop Spillway Concrete & Steel Spillway 123B.dwg 123B.dxf 123B.pdf 123B.dwf
11/08 Fabricated Corrugated Aluminum Double Wingwall Toewall Drop Spillway Structure Details 123C.dwg 123C.dxf 123C.pdf 123C.dwf
9/08 Fabricated Corrugated Aluminum Double Wingwall Toewall Drop Spillway Structure Details 123D.dwg 123D.dxf 123D.pdf 123D.dwf
4/07 5'x 5' R/C Box Inlet For 24' Diameter CM Pipe 166.dwg 166.dxf 166.pdf 166.dwf
4/04 Sheet Pile Toewall Drop Spillway Sh 1 of 5 176A.dwg 176A.dxf 176A.pdf 176A.dwf
4/07 Sheet Pile Toewall Drop Spillway Sh 2 of 5 176B.dwg 176B.dxf 176B.pdf 176B.dwf
5/09 Sheet Pile Toewall Drop Spillway Sh 3 of 5 176C.dwg 176C.dxf 176C.pdf 176C.dwf
4/07 Sheet Pile Toewall Drop Spillway Sh 4 of 5 176D.dwg 176D.dxf 176D.pdf 176D.dwf
4/07 Sheet Pile Toewall Drop Spillway Sh 5 of 5 176E.dwg 176E.dxf 176E.pdf 176E.dwf
5/09 Rock Riprap Chute 184.dwg 184.dxf 184.pdf 184.dwf
5/09 2'x2'x4' Modular Concrete Block Grade Stabilization Structure - 4' Overfall Sh 1 of 2 188A.dwg 188A.dxf 188A.pdf 188A.dwf
5/09 2'x2'x4' Modular Concrete Block Grade Stabilization Structure - 4' Overfall Sh 2 of 2 188B.dwg 188B.dxf 188B.pdf 188B.dwf

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Last Modified October 16, 2009
By Manny Quinones, USDA-NRCS
Email: manuel.quinones@il.usda.gov