LAND DRAINAGE 



655 



half feet deep to receive tile up to ten inches in diameter, 

 the cost may be from fifteen cents to fifty cents a rod, 

 with an average of about thirty-five cents. The cost can 

 sometimes be reduced by the use of a power machine. 

 In stony and hardpan soil the cost may be very much 

 higher than these estimates. The deeper trench is rela- 

 tively the more expensive to construct. 



Laying the tile, filling the trench, and other miscel- 

 laneous operations for the smaller sizes of tile will cost 

 at least ten cents a rod. This makes a total cost for four- 

 inch tile of about 80 cents a rod, $5 a hundred feet, and 

 $260 a mile. 



Records are available of the cost of drainage on an 

 extensive area of cultivated farm land in northern Ohio, 1 

 where the soil is chiefly a medium clay loam, somewhat 

 stony, and where the depth was two to three and one-half 

 feet. Some of the work was done by hand and some with 

 the aid of a traction ditching machine. A fairly low price 

 prevailed for tile, the size ranging from three to thirteen 

 inches. 



The results are as follows : 



iQoddard, L. H., and Tiffany, H. O. The Cost of Tile 

 Drainage. Ohio Agr. Exp. Sta., Circ. 147. 1914. 



