Engineering Field Tools (EFT)
The Engineering Field Tools (EFT) is a framework of engineering tools for field office individuals to plan and design commonly applied conservation practices. Currently there are four applications within the EFT, Survey Engineering Tool (SET), Grassed Waterway Design Tool (WDT), Terrace Design Tool (TDT), and Hydraulic Formulas Tool (HFT). These tools not only support the planner in creating a design, but also create reports that can be used as design documentation and as final construction drawings to hand to a contractor for construction.
What is New in EFT?
EFT Version 126.96.36.199 is the current version of Engineering Field Tools, released in August, 2014. Some highlights of this release include:
· addition of background imagery to the map window,
· capability to import DEM data, such as that generated by LiDAR,
· significant improvements to the Terrace Design Tool (TDT), and
· new Waterway Sizing Wizard that requires no survey data.
What is SET?
The Survey Engineering Tool (SET) was the first design tool created for use under EFT. This application allows users to import survey data from various surveying instruments, manually input survey data, or import DEM data such as generated by LiDAR to create electronic surface elevation maps. The tool will automatically create contour lines that can be managed by the user.
SET was developed not only as a means to create surface elevation maps but also as a support tool to the other applications in EFT that use survey information in their design. For example: The waterway design tool uses SET to establish grades and cross sections; then to plot final designs tied to site specific survey data points.
What is WDT?
The Waterway Design Tool (WDT) is used to design grassed waterways consistent with national conservation practice standards Code 412 Grassed Waterway and Code 362 Diversions. Because WDT is integrated with the Survey Engineering Tool, designers can graphically view their design as they progress through its development.
The design procedures used in the WDT are based on a tractive stress approach to channel stability described in the USDA, Agricultural Research Service, Agricultural Handbook 667, and also captured in the National Engineering Handbook, Engineering Field Manual, Chapter 7, Grassed Waterways.
What is TDT?
Terrace Design Tool (TDT) is a software tool designed to assist field office staff and engineers to design erosion control terrace systems for conservation projects consistent with national conservation practice standards Code 600 Terrace and Code 638 Water and Sediment Control Basins. TDT is a plug-in component that operates seamlessly with the Engineering Field Tool framework and takes advantage of previously developed components and applications such as the Survey Engineering Tool (SET). More specifically, it can use SET's survey and alignment tools, TIN engine, cut/fill volume calculation engine, waterway design tools, earthworks structure design tools and reporting framework.
TDT benefits field office staff and engineers by consolidating knowledge and practices in the form of an easy-to-use tool for design of terrace systems. TDT benefits the end customer, the citizens and farmers, by assisting in implementation of properly planned conservation projects for the land.
What is HFT?
Hydraulic Formulas Tool (HFT) is a collection of formulas based on procedures defined in the NRCS National Engineering Handbook Part 650 (NEH 650). The formulas provide solutions to the hydraulic equations that are frequently encountered in soil and water conservation planning and design activities. HFT is based upon the hydraulic formula software originally developed by NRCS-Ohio as part of the Ohio Engineering Program, and later adapted for Windows by NRCS-Illinois.
How can I obtain EFT?
· NRCS users– EFT 188.8.131.52 has been deployed to all NRCS computers that had a previous version of EFT. To locate the program on your computer, click on “Start\All Programs\Engineering Applications\Engineering Field Tools. If EFT was not automatically deployed to your computer, you must request a manual installation through IT services.
· Non-NRCS users– EFT 184.108.40.206 is available for public download at the Science and Technology Conservation Tools Softwarepage. This version is compatible with the Microsoft Windows 7 operating system.