CONCRETE LINING FOR IRRIGATION CANALS. 



measurements — Continued . 



13 





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. 



Per 

 cent. 



Per 

 cent. 



1.21 



1.48 



Cu. feet. 

 1.88 



3.66 

 .15 



1.50 

 2.54 



2.51 

 2.56 



.72 



1.46 



[Soil deep and slight- 

 i ly sandy. Numer- 

 [ ous rock cuts. 



do 



Report Elias Nelson, 

 Idaho Expt. Sta. 

 Bui. 58, May, 1907. 



....do 



\ Measured June 9, 1906, Milner 

 J to Dry Creek Reservoir. 



/Measured Aug. 6, 1906, Milner 

 \ to Dry Creek Reservoir. 

 Measured June 11, 1906, Dry 



Creek Reservoir only. 

 Measured June 12, 1906, Dry 

 Creek Reservoir to within 

 3i miles of end of canal. 

 Measured Aug. 6, 1906. In- 











Bottom becoming 



silted. 

 Mostly soil; few rock 



cuts. 



Mostly soil; few rock 

 cuts near lower 

 end. 



do 







1.01 

 1.03 



1.13 



.60 



.20 

 .40 



do 







do 







do 



cludes upper 8.07 miles of 

 preceding measurement; 

 Dry Creek Reservoir to 

 spillway. 



Measured Aug. 8, 1906, spill- 

 way to near end of canal. 

 Backwater condition in 

 lower end of section. 



Measured July 20, 1912; from 







Deep uniform clay 

 loam. 



do 



do 



do 



Report D. H. Bark, 

 9th Biennial Re- 

 port State Eng. 

 Idaho, 1911-12. 



do 







Low Line Canal to point 

 5.35 miles above. Good 

 lower bank; comparatively 

 clean uniform cross section 

 and grade; used 7 years. 

 Measured July 18, 1912, from 







do 



"The Point" to 2.7 miles 

 below Dry Creek Reser- 

 voir. Good lower bank; 

 clean uniform cross section; 

 used 7 years. 



Measured July 18, 1912, the 

 first 2.65 miles below Dry 

 Creek Reservoir. Good 

 lower bank; clean uniform 

 cross section; used 7 years. 



Measured July 15, 1912; Dry 

 Creek Reservoir only. 



Measured July 15, 1912. Up- 

 per end of section is 3J 

 miles below Milner. Banks 

 somewhat eroded; upper 

 bank gone in places; nu- 

 merous pools above upper 

 bank; used 7 years. 



Measured July 14, 1912. Up- 







do 







.90 



1.60 



1.580 

 1.590 



2.680 



3.905 



6.338 



1.62 

 1.65 

 1.48 



Deep uniform clay 

 loam with some 

 rock cuts. 



Uniform clay loam 

 with numerous 

 rock cuts. 



Heavier than along 

 main canal. Some 

 rock cuts. 



do 



do 







do 







Report Elias Nelson, 

 Idaho Expt. Sta. 

 Bui. 58, May, 1907. 



do 



per end of section is at Mil- 

 ner wagon bridge. Banks 

 badly eroded; numerous 

 pools above upper bank; 

 no surface indication of 

 seepage; used 7 years. 

 Measured June 15, 1907, sta- 







tions 359 to 697. Waste wa- 

 ter (6.8 second-feet) in ad- 

 dition to inflow; first used 

 June, 1905. 







do 



do 



tions 697 to 1204J. First 

 used, upper part, June, 

 1905; lower part, April, 

 1906. 









tions 697 to 1534. 



