New Program Release!

WinFlume is a windows-based computer program used to design and calibrate long-throated flume and broad-crested weir flow measurement structures.  The software was developed through the cooperative efforts of the Bureau of Reclamation, Agricultural Research Service, and the International Institute for Land Reclamation & Improvement.  Primary funding for WinFlume's development has come from Reclamation's Water Conservation-Field Services Program.

License Information

Download the Software

Download WinFlume 2.0 (written for Windows 10!) from the USDA Agricultural Research Service, released 2020.

Download the legacy version, WinFlume 1.0006, released August 22, 2014.

See list of WinFlume revisions, from version 1.0 to 1.0006.

Useful Related Tools and Information

• New!   Wall Gage Creator—This stand-alone program allows users to create flow-graduated staff gages for any hydraulic structure for which a rating table or rating equation is known. If you want to create WinFlume-style gages for other kinds of structures, check this out.

• Excel spreadsheets for estimating construction quantities of several common configurations of flumes and broad-crested weirs. Quantities may be estimated in English or metric units.

• Excel spreadsheets for computing parameters needed for design of drop structures and stilling basins below weirs and flumes. English and metric versions included.

• Powerpoint slides with examples of different construction materials and methods.

• Hints for generating staff gages using PDF files.

• Standard Designs—This paper provides precomputed standard-design structures for typical small to medium canals.

User's Manual

• A user's manual in Adobe Acrobat (PDF) format is included in the setup kit. This file can be viewed on screen or printed to produce a hard-copy manual. If you do not already have the Adobe Acrobat Reader installed on your system, you may download it from the Adobe website.

• El software se escribe en inglés, pero un manual de usuario en español está disponible.
• The software is written in English, but a user's manual in Spanish is available.

• For more detailed information, see our book, WATER MEASUREMENT WITH FLUMES AND WEIRS, which provides design and construction guidance, examples, and a program user's manual.

• Training on the use of WinFlume is provided in a water measurement workshop taught by the Bureau of Reclamation

• Reference Book!  WATER MEASUREMENT WITH FLUMES AND WEIRS (2001)—This book serves as a user's manual for the WinFlume program and provides information on design, calibration, construction, and hydraulic theory of long-throated flumes and broad-crested weirs.


• List of WinFlume revisions, since version 1.0.


• Conference paper describing long-throated flume applications, Tools for Design, Calibration, Construction and Use of Long-Throated Flumes and Broad-Crested Weirs (2002).


• Conference paper describing research on special performance issues related to flumes that are primarily width-contracted (no raised sill), Performance Limits of Width-Contracted Flumes (2002).


• Conference paper describing the WinFlume software and its capabilities, WinFlume -- Windows-Based Software for the Design of Long-Throated Measuring Flumes (2000).


• Commercially Available Flumes—Long-throated flumes are very adaptable, easily constructed, and easily customized.  However, pre-manufactured flumes may be useful in some situations.  A list of some flume suppliers is provided here.