CONCRETE LINING FOR IRRIGATION CANALS. 

 measurements— Continued . 



Loss per mile. 



Maxi- 

 mum 



Mini 

 mum. 



Mean 



Loss per 

 square 

 foo tof 

 wetted 

 area in 



24 hours. 



Character of material 

 in the channel. 



Source of informa- 

 tion. 



Remarks. 



Per 

 cent. 



2.20 



•20. 80 



Per 

 cent. 



0.53 



Per 

 cent. 



Cu. feet. 



[Natural channel; 

 ground water 4 to 

 10 feet. 



.do. 

 .do. 



I Report C. E. Gran- 

 sky, U. S. G. S. 

 Water -Supply 

 Paper No. 18, 1898. 

 ..do 



19.50 



6.0 

 6.0 



1.2-6.4 



1. 2-6. 4 



/Porous soil and sub- 

 \ soil. 



..do 



Sandy loam 5 to 8 

 feet deep. 



Sandy loam with 

 ground water at 8 

 feet below surface. 



....do 



....do 



/Also Bui. 48, Colo. 

 \ Expt. Sta. 1898. 

 Report C. E. Grun- 



sky, U. S. G. S. 



Water -Supply 



Paper No. 18, 1898; 



also Bui. 48, Colo. 



Expt. Sta., 1898. 



....do 



.do. 



Heavy clay; all earth. 



Report A. P. Stover, 

 O. E. S. Bui. 119, 

 Sep. No. 3, 1901. 



In shale hills. 



Earth. 



....do. 

 ....do. 

 ....do. 



.do. 



.do. 



.do. 

 .do. 

 .do. 



....do , 



Sandy loam . 



.do. 

 .do. 



26.10 

 15.00 



14.10 



Gravelly and sandy; 

 near river. 



.do. 



U3.20 



Stratified slope; rocks 



inclining. 

 do 



Along outer side 

 ridge near j unction 

 of earth and rock. 



Report L. G. Car- 

 penter, Bui. 48, 

 Colo. Expt. Sta., 

 1898. 



....do 



....do 



.do. 

 .do. 



73 Somewhat gravelly . 



.do. 

 .do. 



1 Measured in 1882. Artificial 

 channel of uniform dimen- 

 . sions. 



/Measured in 1882. Surface 

 \ soil and subsoils saturated. 

 Measured in 1882. 



Do. 



Do. 



Measured June 14, 1882, on 

 Gould ranch north of 

 Fresno. Average width, 3 

 feet; shade trees along por- 

 tion of ditch, and banks 

 overgrown with grass; weir 

 used. 



Measured June 21, 1882. 

 Lateral of main supply 

 canal; about 2 feet wide; 

 weir used. 



Measured June 26, 1882. Di- 

 verts water from Fresno 

 Canal at point 4 miles east 

 of Fresno. Average width, 

 8 feet. 



31 diversions in this length. 

 Increase thought to come 

 from irrigated lands west 

 of Palisade. 2 



At numerous places small 

 trickling streams could be 

 seen issuing from canal 

 bank.2 



Water section entirely in ex- 

 cavation; considerable side- 

 hill. 



Same as foregoing but mostly 

 along sidehill. 



Comparatively level cross 

 slopes. 



Comparatively level cross 

 slopes; in excellent condi- 

 tion. 



Receives heavily laden silt 

 waters, flood time only. 

 Canal follows river for 11 

 miles. 



Some land irrigated above 

 ditch from Dixon Canyon. 



Some land irrigated above 

 ditch from Spring Canyon. 



2 Combining these two measurements shows gain greater than loss. 



