WATER CONDUCTORS 



109. 





Fin. 55. Ooncrrto-linod Canal. 



From the standpoint of safety a shallow canal is better than a 

 deep one. The pressure on the banks increases with the depth of water 

 and may cause breaks, especially where canals are built on side 

 hills, and where the banks may have been weakened due to erosion. 



The slopes should, therefore, in the first place be such that 

 they will withstand such erosion of the water, the values given in 

 Table XXX being representative of actual practice. 



TABLE XXX 

 SIDE SLOPES 



