Win tr 55 user manual

Computer availability eliminated the need for WinTR Guide methods, thus the guide portions graphs and tables of the user document have been eliminated.

This user guide covers the procedures used in and the operation of the WinTR computer program. Users who are not familiar with NRCS hydrologic procedures should refer to the appropriate chapters for background information and the details of procedural techniques. United States Department of Agriculture. Accessed Skip to main content. Historical Background Technical Release 55 TR Urban Hydrology for Small Watersheds was first issued in January as a simplified procedure to calculate the storm runoff volume, peak rate of discharge, hydrographs and storage volumes required for storm water management structures SCS, Field Value Modified Creative Commons CCZero.

The computer program became a standard tool to analyze peak flow changes caused by urbanization in many locations. Its wide acceptance by public and private users has also indicated where improvements could be made in the procedures and the computer program. A WinTR work group was formed in the spring of to modernize and revise the Technical Release and the computer software. The current changes include: upgrade the source code to Visual Basic, change the philosophy of data input, develop a Windows interface and output post- processor, enhance the hydrograph-generation capability of the software and flood route hydrographs through stream reaches and reservoirs.

First Name. Last Name. Since the initial publication predated the widespread use of computers, TR was designed primarily as a set of manual worksheets. A TR computer program is now available, based closely on the manual calculations of TR TR also provides a simplified "tabular method" for the generation of complete runoff hydrographs.

The tabular method is a simplified technique based on calculations performed with TR TR specifically recommends the use of more precise tools, such as TR, if the assumptions of TR are not met.