National Engineering Handbook
This section is not the offical site for the National Engineering Handbook. Users looking for the offical site should go to: http://policy.nrcs.usda.gov/
The previous filing system is not used on this page. The "Sections" have been replaced by "Parts'.
- Section 3 - Sedimentation is filed under "Part 632 Sedimentation Geology"
- Section 5 - Hydraulics
- Section 6 - Structural Dams
- Section 8 - Engineering Geology is filed under "Part 631 Geology"
- Section 11 - Drop Spillways
- Section 14 - Chute Spillways
- Section 15 - Irrigation is filed under "Part 623 Irrigation"
- Section 16 - Drainage of Agricultural Land
- Section 18 - Ground Water will be replaced by "Part 631 Geology"
- Section 19 - Construction Inspection
Part 600 - 609: General
-
- Part 601 - Authorizations
- Part 602 - Engineering Responsibilities
- Part 603 - Safety
- Part 604 - Special Investigations, Studies, and Reports
- Part 605 - Non-NRCS Engineering Services
- Part 606 - Dam Safety
Part 610 - 619: Management
- Part 610 - Planning
- Part 611 - Design
- Part 612 - Construction
- Part 613 - Operation and Maintenance
Part 620 - 629: Application
- Part 620 Soil and Water Resource Development
Part 621 - Pollution Abatement and Water Quality Improvement
- NHWQM National Handbook of Water Quality Montoring
- Part 600 (1997) (note filing discrepency)
- Part 615 (2002 draft) (note filing discrepency)
Part 622 - Snow Survey and Water Supply Forecasting
- NEH-22 Snow Survey and Water Supply Forecasting (4/72)
- Part 622 Chapter 3: DRAFT Data Site Selection
- NB_210_10_6 This draft of NEH 622.03 updates portions applicable to the selection of data collection sites in the Soil Conservation Service NEH, Section 22, Snow Survey and Water Supply Forecasting, dated April 1972. This chapter presents information for consideration in selecting data collection site locations and contains information on authorizations and documentations of new sites.
Technical Notes
Part 623 - Irrigation
(formerly NEH Section 15)
Part 624 - Drainage (formerly NEH Section 16)
Part 624 - Drainage, was called NEH 16 Drainage of Agricultural Land
All chapters from NEH 16 are listed here
Part 625 - Soil Erosion Control and Reclamation
Part 626 - Water Supply and Development
Part 627 - Flood Prevention and Protection
Part 628 - Dams
Technical Releases
- TR-210-46 - Gated Outlet Appurtenances, Earth Dams (12/1982)
- TR-210-56 - A Guide for Design and Layout of Vegetative Wave Protection for Earth Dam Embankments (12/1974)
- TR-210-60 - Earth Dams and Reservoirs (7/2005)
- (from Part 623.45) NEH Part 628.45 contains criteria and guidance formerly included in TR–60
and SNTC Technical Note 709. This material supersedes and replaces the
guidance on filter diaphragms contained in those documents.
Technical Notes
- TN_210_DN_01 - Scour Protection at Base of Risers to Drop Inlet Spillways (8/1967)
- TN_210_DN_03 - Detail of Riprap Above Berm on Earth Dam (7/1968)
- TN_210_DN_06 - Riprap Lined Plunge Pool for Cantilever Outlet (Second Edition) (1/1986)
Part 629 - Air Quality
- To be released in 2010
- Chapter 1:. Introduction
- Chapter 2: Particulate Matter
- Chapter 3: Greenhouse Gases
- Chapter 4: Odor
- Chapter 5: Tropospheric Ozone
- Chapter 6: Chemical Drift
Part 630 - 639: Technology
Part 630 - Hydrology
Formerly NEH Section 4
- Chapter 1 - Introduction (09/1997)
-
Chapter 2 - Procedures (04/1999)
- Chapter 3 - Preliminary Investigations (04/1999)
- Chapter 4 - Storm Rainfall Depth (03/1993)
- Chapter 5 - Streamflow Data (09/1997)
- Chapter 6 - Stream Reaches and Hydrologic Units (11/1998)
- Chapter 7 – Hydrologic Soil Groups (05/2007)
- Chapter 8 - Land Use and Treatment Classes (06/2002)
- Chapter 9 – Hydrologic Soil-Cover Complexes (09/2004)
- Chapter 10 - Estimation of Direct Runoff from Storm Rainfall (09/2004)
- Chapter 11 – Snowmelt (09/2004)
- Chapter 12 – Hydrologic Effect of Land Use and Treatment (09/2000)
- Chapter 13 – Stage Inundation Relations (09/2007)
- Chapter 14 - Stage-Discharge Relationships (08/1972)
- Chapter 15 - Travel Time, Time of Concentration and Lag (08/1972)
- Chapter 15 DRAFT- NB_210_9_1 Time of Concentration (10/2008)
- Chapter 16 - Hydrographs (03/2007)
- Chapter 17 - Flood Routing (08/1972)
- Chapter 18 - Selected Statistical Methods (09/2000)
- Chapter 19 - Transmission Losses (09/2007)
- Chapter 20 - Watershed Yield (1956; Reprinted with minor revisions, 1971)
- Chapter 21 - Design Hydrographs (09/1972)
- Chapter 22 - Glossary (1956; Reprinted with minor revisions, 1971)
- Chapter 31 – Removed NB_210_10_2 Computer Program for Water Surface Profiles NRCS formally adopted HEC-RAS.
Technical Releases
- TR-210-16
- TR-210-19 - Determination of Storage Requirements to Meet Supply Demand Relationships (3/1962)
- TR-210-19-A - Revision of Reservoir Operations Study Computer Program and User Manual, Appendix A (3/1988)
- TR-210-25 - Design of Open Channels (9/1977) (Chapter 4 Only)
- TR-210-33 - Simplified Method for Determining Floodwater Storage (4/1978)
- TR-210-35 - Method of Reservoir Flood Routing (2/1967)
- TR-210-37 - Structural Analysis and Design at Base of Riser With Conduit Openings in Both Endwalls (12/1967)
- TR-210-38
- TR-210-55 - Urban Hydrology for Small Watersheds (second edition) (6/1986)
- TR-210-66 - Simplified Dam-Breach Routing Procedure (third edition) (9/1985)
- TR-210-75 - Reservoir Storage Volume Planning (7/1991)
- DN-16
- HN-1
- NRCS Hydraulics and Hydrology page
Part 631 - Geology (formerly Section 8 & Section 18)
From NB_210_9_6
Four new chapters in the NEH have been drafted and proposed to replace the following
existing documents in the Electronic Directives System:
- NEH, Section 18, Ground Water (June 1978).
- Technical Release No. 36, Ground Water Recharge (June 1967).
- NEH, Part 631, Chapter 33, Investigations for Ground Water Resources Development
(November 1998).
Part 632 - Sedimentation Geology (formerly Section 3 - Sedimentation)
Part 633 - Soil Engineering
- Chapter 26: Gradation Design of Sand and Gravel Filters (10/1994)
- Most of the criteria in this document was originally issued in Soil Mechanics
Note 1, revised January 1986. This revision of Soil Mechanics Note 1 and
any future revisions of other Soil Mechanics Notes will be placed in the
National Engineering Handbook, Part 633, Soil Engineering. This material is
Chapter 26, Gradation Design of Sand and Gravel Filters.
Part 634 - Hydraulic Engineering
Part 635 - Landscape Architecture
- TR-210-65 - Procedures to Establish Priorities in Landscape Architecture (10/1978)
TN-210-LAN - Technical Notes: Landscape Architecture
- TN_210_LAN_01 - Landscape Design in Mined Land Reclamation (9/1983)
- TN_210_LAN_02 - Removed NB_210_10_2 Landscape Design: Ponds (9/1988)
- TN_210_LAN_03 -
Landscape and Wildlife Habitat Management in the Countryside (4/1987)
Part 636 - Structural Engineering
Flexible conduits used on NRCS projects typically consist of corrugated
metal pipe (CMP), various types of plastic pipe, steel pipe, or ductile iron
pipe. The design of these conduits was completed by allowable fill height
tables in various Conservation Practice Standards, guidance given in TR
77—Design and Installation of Flexible Conduits and the associated computer
program, and multiple technical notes developed by NRCS staff.
NEH 636 chapter 52 updates the design procedure to current industry and
government agency practice. Although symbols for conduit (pipe) design
vary among types of materials and industry guidance, those used in chapter
52 are consistent within the document (see appendix 52A). Appendix 52B
contains several design examples that were developed using the formulas
and information in this chapter.
Part 637 - Environmental Engineering
Part 638 - Hydrogeology
Content
Part 639 - Erosion Control Engineering
Content
Part 640 - 649: Support Operations
Part 641 - Drafting and Drawing
Part 642 - Specifications for Construction Contracts (formerly Section 20)
NEH Part 642 in its entirety is a complete replacement of National Engineering Handbook Section 20, “Specifications for Construction Contracting.”
NEH-20 and all amendments are cancelled.
- Part 643 - Materials
- Part 644 - Equipment
- Part 645 - Engineering Technical Materials
Part 646 - Construction Inspection
Part 650 - 659: Field Office Handbooks
Part 650 - Engineering Field Handbook
(formerly known as Engineering Field Manual)
Part 651 - Agricultural Waste Management Field Handbook
Part 652 - Irrigation Guide
Part 653 - Stream Corridor Restoration: Principles, Processes and Practices
Content
Part 654 - Stream Restoration Design
Technical Supplements
Case Studies
- Introduction
- CS1 Chalk Creek, Summit County, Utah
- CS2 Goode Road/Cottonwood Creek, Hutchins, Texas
- CS3 Little Elk River, Price County, Wisconsin
- CS4 Silver Creek, Silver Creek, New York
- CS5 Rose River, Madison County, Virginia
- CS6 Big Bear Creek, Lycoming County, Pennsylvania
- CS7 Spafford Creek, Otisco Lake Watershed, New York
- CS8 Copper Mine Brook, Burlington, Connecticut
- CS9 Little Blue River, Washington County, Kansas
- CS10 Newaukum River, Lewis County, Washington
- CS11 Streambank Stabilization in the Red River Basin, North Dakota
- CS12 Grade Control Structures in Western Iowa Streams
- CS13 Owl Creek Farms, North Branch of the Kokosing River, Knox County, Ohio
- CS14 Streambank Stabilization in the Merrimack River Basin, New Hampshire
- CS15 Streambank Stabilization in the Guadalupe River Basin, Santa Clara County, California
- CS16 Coffee Creek, Edmond, Oklahoma
- CS17 Stream Barbs on the Calapooia River, Oregon
- CS18 Wiley Creek, Sweet Home, Oregon
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