CONCRETE LINING FOR IRRIGATION CANALS. 



measurements. 



Loss per mile. 



Loss per 

 square 

 foot of 

 wetted 

 area in 



24 hours. 



Character of material 

 in the channel. 



Source of informa- 

 tion. 





Maxi- 

 mum. 



Mini- 

 mum. 



Mean. 



Remarks. 



Per 



cent. 



\ 0.88 



Per 

 cent. 



0.80 



Per 

 cent. 



0.84 



.48 



1.40 



5.20 



6.80 



6.75 

 13.60 



45.25 

 64.00 



.80 

 11.50 



6.33 



9.46 



6.55 



7.66 



11.10 

 8.60 



2.65 



.65 



.30 



.17 



.20 



5.63 



1.10 

 5.90 



Cu. feet. 



j 0.30 

 \ .32 



.23 

 f .33 

 \ .20 

 [ .28 



) 



[Report W. H. Code, 

 1 O. E. S. Bui. 104, 

 [ Sep. No. 2, 1900. 

 do 



[channel coated with analmost 

 1 impervious silt deposit. 



Do. 



/ 



I 2.19 



.70 





....do 



Do. 





do 



Do. 





...do 



Do. 





Report A. E. Chand- 

 ler, O. E. S. Bui. 

 119, Sep. No. 2, 

 1901. 

 .do.... 























do 



and squirrel holes in chan- 

 nel bed. 

 Do. 



ll6.00 



J46.00 



11.30 

 44.50 







. .do 

















Report A. E. Chand- 

 ler, O. E. S. Bui. 

 119, Sep. No. 2, 

 1901. 

 . do.... 



Channel through sand of the 

 first river bench. 



Discharge (97.6) measured at 

 headgate June 1, 1901. 



Discharge (3.7) measured at 

 headgate July 9, 1901. 



[Measured June 12, 1901, at 

 the head of canal. 



Measured June 14, 1901, at 



















.do 



I 9.50 



3.25 













(Report A. E. Chand- 

 1 ler, O. E. S. Bui. 

 1 119, Sep. No. 2, 

 [ 1901. 



do. 



the head of canal. 

 Measured June 27, 1901, at 

 the head of canal. 



Measured June 14, 1901, at 











the head of canal. 



/Measured June 29, 1901, 4 

 \ miles below head of canal. 

 /Measured June 29, 1901, at 

 \ the head of a lateral. 











do 











do 











do.. 





| 2.80 



2.50 







.do.... 



Measured at head. For first 

 4J miles bottom width 5 

 feet, grade 8 feet per mile. 







Report Frank 



Adams, O. E. S. 



Bui. 158, Sep. No. 



3, 1904. 

 Report Frank 



Adams, O. E. S. 



Cir. 108, 1909. 

 do 



The succeeding \ mile bot- 

 tom width 6 feet, grade 6 

 feet per mile. 

 See O. E. S. Bui. 158, Sep. 

 No. 3, for losses in individ- 

 ual portions of canal. 





























do 













Report J. E. Road- 

 house, O. E. S. 

 Bui. 158, Sep. No. 

 3, 1904. 





1.41 



.80 











Sandy, weedy, and 

 flat; 2 miles in em- 

 _i bankment. 



do 















