The Natural Resources Conservation Service used government funds to develop the Technical Release 55 (WinTR-55) computer program. NRCS Training Materials (These files require Microsoft Powerpoint.)ĭownload the WinTR-55 Presentation for Experienced Users (2.7mb)Īssistance with the material on this page may be obtained from the WinTR-55 Support Team at WinTR-55 team. WinTR-55 Time of Concentration (Tc) Document Hydrology Technical Note No. References on Time of Concentration with Respect to Sheet Flow (59kb) Latest version of the WinTR-55 Users Guide (12mb) WinTR-55 Support Materials (These files require Microsoft Word or Adobe Acrobat.) Instructions for incorporating updated database into WinTR-55 (using the following zip file) WinTR-55, Version 1.00.10 DB (last updated ) Windows 7 for 32 and 64 bit PCs. Install WinTR-55 IMPORTANT Installation Settingsĭownload WinTR-55 DB (updated database) NEW! WinTR-55, Version 1.00.10 (18.5 MB - last updated ) Windows 7 (32 and 64 bit) and Windows 10 Version for 64 bit PCs Download WinTR-55 Note: Download links may not work in Google Chrome web browsers. If you encounter any problems, or have comments or enhancements on the version 1 program please contact the WinTR-55 development team via e-mail to the WinTR-55 Team. The WinTR55 development team has appreciated all the testing and comments we have received to date. The NRCS WinTR-55 program can be downloaded from this page. A final version (including programs, sample data, and documentation) is now complete. The new WinTR-55 uses the WinTR-20 program as the driving engine for more accurate analysis of the hydrology of the small watershed system being studied. As a windows based program, the input and editing windows are a big improvement over the DOS version.

WinTR-55 Watershed Hydrology The TR-55 computer model has been revised and completely rewritten.

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