I02 IRRIGATION FARMING. 



The gate should always be put on the inside end. A 

 very simple and easy gate to operate, say up to eight 

 or nine feet surface, is what is called the paddle gate. 

 The end of the sluice that the gate goes on should be 

 made as follows: Extend the bottom into the pond eight 

 or ten inches, pull the top back so the sides will describe 

 an angle of fifty-five degrees to the bottom line, make 

 the face straight and smooth, put two pieces of 3 x 6 tim- 

 ber on top of the wall and let them run back under the 

 dirt work. Cut the paddle or gate about two inches 

 larger than the aperture. Bolt two cleats near the ends 

 and let them extend four inches above. Then bolt on 

 a handle or lever in the center three by four inches, 

 and eight feet long ; bolt a roller crosswise to the cleats 

 and handle close down to the top of the gate, and make 

 some convex boxes in the timbers on top of the wall to 

 receive them. Put some strap iron over these gudgeons 

 so the water will not lift the gate out of place. Put a 

 pulley in the top end of the handle and set a post on 

 the top of the embankment. Fasten one end of the 

 rope to the post and pass it through the pulley and 

 back to the post. The a(5lion of the water will always 

 close the gate, and to open it take hold of the loose 

 end of the rope, and pull back and snub it to the 

 post. 



If the reservoir is so situated that it will catch any 

 amount of surface or storm water it must be provided 

 with an ample spillway large enough to take off the 

 surplus water, so that in no emergency can the water 

 rise over the crest of the dam ; and the spillway must 

 be provided with large and ample aprons, so the 

 momentum of the water pouring over the spillway will 



