15 



Table of Discharge for a One Foot Clppolletti Weir. 



This table is computed for a one foot Cippolletti or trapezoidal weir, but 

 it may be used for longer weirs by multiplying the quantities given by the 

 length of the weir in feet. For instance a two foot weir will give twice the 

 discharge obtained for a one foot weir. An 18 weir will give 1% times 

 the values given in the table. For accuracy a one foot weir should not be 

 used for depths greater than about 4 inches. For larger discharges it is 

 preferable to use a longer weir crest. 



