)'st 7(1 



DRAINAGE. 



Eight inch tile cost 70 to 80c per rod. 

 Ten inch tile cost $1.00 to $1.40 per rod. 



5. Find the cost per thousand of each of the above sized tile at 

 the average price quoted above? 



NOTE. (Average price of o inch tile = 30 +36 H- 2 = 33) 



Tile are usually sold by the thousand or hundred; 16 tile 

 being counted per rod. 



Cost of Tiling. 



The cost of digging the ditch, laying the tile, and filling the 

 ditch is a simple problem and can be easily solved. 



The wages for good ditchers can usually be computed at 

 25c per hour. 



The following table has been compiled by a competent, prac- 

 tical drainage engineer: 



APPROXIMATE COST PER ROD OF DIGGING DITCH, LAYING TILE, AND 

 BLINDING UNDER CONDITIONS NAMED ABOVE. 



\Yhere the ground is so hard that it will require the use of 

 a pick or bar, the cost will be much higher than given in the 

 above table. 



PROBLEMS. 



1. A 40 acre farm has a complete system of drainage; the main 

 drain consists of 80 rods of 8 inch tile laid at an average depth of three 

 and one-half feet. What was the cost of digging, laying and blinding 

 @ 46'c per rod? 



2. What was the total cost of the tile drain described in problem 1, 

 if the cost of the 8 inch tile in the field were $50 per thousand? 



">. If the laterals on the farm described in problem 1, are (of 4 inch 



