Irrigation in the Pacific Northwest

Trapezoidal Flume

This calculator determines the flow rate for a trapezoidal flume. A trapezoidal flume has a flat bottom with sloped sides that contract in the center. The height change is the difference between the upstream water height and the downstream water height.

Learn more about the units used on this page.


Height Change:
Bottom Width:
Flow Rate:

 

 

 

 

 

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