212 



ENGINEERING FOR LAND DRAINAGE. 



COST OF DIGGING DITCH AND LAYING TILE TO GRADE. 



3^' to &^ tile 2 to 3 ft. deep, $1.20 per 100 ft. 





t( ti 



i i 

 i ( 



( c 



it 



9'' to I 2 



3 to 4 '^ 



4to 5 ^^ 



7'^ and 8'' tile 3 to 4 '' 



a a a it a1 << 



5 " 



" 4. " 



t i t ^ ^ 



1.50 

 2.10 

 1.80 

 2.40 



3.50 



3-00 

 3.60 



t i 

 i i 

 i i 

 i ( 



ct 

 i ( 



Filling the ditches in cultivated land can be done 

 with a team and plough for 10 cents per 100 feet. In 

 meadows where care must be taken to leave the sur- 

 face uninjured, for 15 cents per 100 feet. Where the 

 filling must all be done by hand work it will cost about 

 25 cents per 100 feet. 



Laying out and superintending are worth about 5 per 

 cent of the total estimated cost where nothing is re- 

 quired but location and levelling lines and final inspec- 

 tion of the drains before they are covered. 



TABLE SHOWING THE NUMBER OP CUBIC YARDS OF EARTH IN 

 ONE ROD OF DITCH OF VARIOUS DIMENSIONS. 



(Excavation for Tile Drains.) 



rr 



Mean Width. 





7 In 



8 In 

 1.02 



oin. 



10 In 



XI In. 



i2ln 



tain. 



14 In 



IS In. 



16 In 



T7ln. 



18 In. 



30 



0.89 



r.iS 



1.27 



1.40 



1.53 



X.65 



1.78 



1. 91 



2.04 



2.t6 



2.29 



33 



0.98 



1. 12 



1.26 



1.40 



1. 54 



1.68 



1.82 



1.94 



2.10 



2.24 



2,^8 



2.52 



36 



1.07 



1.22 



r.3iJ 



1.53 



1.68 



1.8^ 



r.98 



2.14 



2.29 



2.24 



2.60 



2.7s 



30 



1. 16 



1.32 



X.49 



1.6S 



1.82 



1. 98 



2 IS 



2.32 



2.48 



2.6«; 



2.81 



2.98 



42 



I. 25 



1.42 



1 .60 



1.78 



1,96 



2. 14 



2. 32 



2.49 



2.67 



2. 85 



3.03 



3.21 



45 



J. 34 



1.53 



1.72 



1. 91 



3. 10 



2.29 



2.48 



2.67 



2.86 



3.0s 



3.24 



3.44 



4» 



1.43 



1.63 



x.8s 



2.04 



2.24 



2.44 



2.6s 



2.85 



3 -OS 



3.26 



3.46 



3.67 



51 



1.52 



1.7? 



x.os 



2.16 



2.38 



2.60 



2.8X 



3-03 



3.2s 



3.46 



3.68 



3.90 



54 



1.60 



1.83 



2.06 



2.20 



2.52 



2.75 



2.98 



3.20 



3.44 



3.66 



3*89 



4.12 



57 



1.60 



1.94 



2.18 



2.42 



2.66 



2.90 



3.X4 



3^3i^ 



3.63 



3.87 



4. XX 



4.3'J 



60 



i,7» 



2.04 



2.29 



2. 54 



2.80 



3.0s 



3.3X 



3.56 



3.82 



4.07 



4.33 



4.58 



