WRDS Library [Home]
Digital Library Publications Videos Card Catalog

WWRC 93-13
Calibration of Long Crested Weir Discharge Coefficient


Long crested weirs are used in open-channel irrigation distribution systems to minimize fluctuations in the canal water surface above canal turnouts. The object of this report was to develop an equation for the long crested weir discharge coefficient so that the weirs could be used to measure canal flowrates. Sixty-seven different weir models were tested and several general discharge equations were developed which predicted the flowrate to within plus or minus five percent.

93-13 Table of Contents
Water Resources Publications List
Water Resources Data System Library | Water Resources Data System Homepage