304 



Journal of Agriculture. 



[lo May, 1909. 



rubbish coming down the creek, and the gate is pushed up as it passes- 

 through and escapes down stream. 



The span of each gate should not be more than about 12 feet, and the 

 number of gates required will be according to the width of the creek 

 bottom. 



UPPER SIDE OF FLOOD GATE. 



The photographs show the mode of construction very clearlv, the whole 

 being light, cheap, and effective. 



LOWER .SIDE OF FLOOD GATE. 



