EFH2 Software

Website to download NRCS Technical Tools.

The EFH-2 software implements the procedures described in the NEH 650 - Engineering Field Handbook Chapter 2 (EFH-2) for estimating runoff and peak discharge.  Required information includes watershed characteristics (drainage area, runoff curve number, watershed length, watershed slope) and rainfall amount and rainfall distribution.  The link below will take you to the NRCS Tech Tools page.  Find and download the latest version of EFH-2.

 

Watershed Tools Overview

Time: 21:52; This webinar is a recorded PowerPoint showing the NRCS Engineering Tools-Watershed Tools and other Tools in ArcMap. The first ~19 minutes covers the steps to delineate a watershed and determine a composite RCN.  At 19:39, other useful tools in the Toolboxes are explained.

Pipe Hydraulics

Time: 15:55, Suggested viewing: 10:20;  The NRCS Oklahoma State Engineer demonstrates pipe hydraulics in a lab setting.  He shows several types of inlets and their effects on pipe flow efficiency.

BWSR Snapshots

Snapshots are stories published monthly by BWSR to highlight the work of our agency and partners. They provide insights on how these partnerships impact our state's soil and water resources. More stories are available through BWSR’s Story Library where you can search by keyword, county, major watershed basin, publication date, funding source, or publication type.