THE DRAINAGE OF FARM SOILS 



subject to large discounts. On an average they 

 will cost: 



2-inch tile $1.00 per 100 feet 



2$ " " 1.30 



3 " " 1.50 



4 " " 2.25 



5 " " 3.75 



6 " " 4.50 



7 " " 6.80 



8 " " 9.00 



The cost of tiles for mains is thus two or more 

 times as much as for laterals; hence the necessity 

 for making the main as direct and short as possible. 

 The expense of filling the ditch may be estimated 

 at from thirty to forty cents per hundred feet. 

 Professional drainage engineers usually figure on 

 a total cost of from $15.00 to $25.00 per acre when 

 a large field under average conditions is to be 

 drained. If an inexperienced man does the work 

 it is likely to cost much more than this. 



OTHER KINDS OF UNDER-DRAINS 



Before tile drains were perfected, various 

 other materials were used, chief of which were 

 stones, plank and brush. Very rarely are any 

 of these drains practicable now; tile drains are 

 usually cheaper and always more serviceable. 

 When flat stones are abundant a stone drain 

 may be feasible, but it costs as much to put in a 

 good stone drain as a tile drain. The large, flat 

 stones are laid so as to form a continuous channel. 

 If there are many stones on the surface these can 

 be thrown in above the drain. Stone drains are 

 very likely to clog with soil, as the joints are so 

 poor. 



