Redlands Irrigation System 



297 



to withstand a pressure of 160 feet of water. This pipe is made 

 of selected redwood staves, 2x6 inches, with edges beveled to fit 

 closely, and having their ends joined by a strip of metal fitting 

 tightly into a slot in the end of each stave ; the width of the 

 metal strip being a little greater than the width of the stave, 



Fig. 57. Santa Ana canal on mountain side. 



a close joint is thus secured. The staves are bound together 

 with iron hoops, whose distance apart is varied according to the 

 pressure the pipe is required to withstand. 



When the canal reaches the wash of Mill creek, it is carried 

 across in the flume represented in Fig. 60, also made of redwood 

 staves. Further on, as the water nears its destination, one 

 branch discharges its water through the paved and cement- lined 

 canal into the paved and cement- lined distributing reservoir, 

 both shown in Fig. 61. 



From the reservoir, the water is taken in a system of under- 



