CONCRETE LINING FOR IRRIGATION CANALS. 
measurements — Continued . 
27 
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. 
3.67 
.61 
4.85 
7.92 
1.7 
1.57 
2.78 
5.12 
4.57 
4.59 
2.96 
1.49 
6.90 
12.5 
18.7 
11.2 
Cu.feet. 
Report Samuel For- 
tier, O.E.S. Bui. 
172, 1906. 
do 
Measured 1903. Some inflow 
seepage. 
Measured 1903. Seepage in- 
Report Samuel For- 
tier, O.E. S. Bui. 
104,Sep.No.4,1900. 
.do 
flow from creek channels 
and narrow irrigated val- 
leys. 
Measured June 27, 1900. 
Gravelly 
Measured Julv 21-23, 1900, 
Report F. L. Kent, 
0. E. S. Bui. 158, 
Sep. No. 4, 1904. 
.do 
from headgate to north line 
of Grantsdale. 
Measured July 15, 1904, up- 
per end of section 600 feet 
below Lost River flume. 
Grade, 1.8 feet per mile. 
Measured July 16, 1904, up- 
First mile along a 
very rocky and in 
places steep hill- 
side. 
Extremely rough 
do 
Rough in places, nat- 
places, some silt- 
ing where grade is 
light. 
do 
Report A. P. Stover, 
0. E. S. Cir. 67. 
.. .do 
per end of section, 300 feet 
below Lost River flume. 
Grade, 0.7 foot per mile. 
Measured Aug. 20, 1904, up- 
per end of section, 200 feet 
below power plant. 
Doubtless heavy loss in 
first mile. 
Measured Sept. 5, 1905. 
Heavy grade, numerous 
natural drops. Stations 
75+100 to 184+50. 
Measured Sept. 5, 1905. 
.do 
Heavy grade, numerous 
natural drops. Stations 
184+50 to 281+40. 
Measured Sept. 8, 1905, sta- 
tions 71+00 to 228+90. 
Measured Sept. 8, 1905, from 
. ..do 
Rock cut 
.do 
stations 22S+90 to 322+90. 
Measured Sept. 8, 1905, from 
stations 322+90 to 630+00. 
Heavy grade first one- 
third section; remainder 
light grade. 
Measured Sept. 8, 1905, from 
stations 630+00 to 760+00. 
Channel entirely in cut; 
grade light. 
Measured Sept. 6, 1905, from 
station 34+75 to 170+50. 
Bottom well silted; new 
channel; dry for some time; 
porous. 
Measured Sept. 6, 1905, from 
station 170+50 to 285+50. 
New channel in good con- 
dition; dry for some time: 
lower end of section well 
silted. 
.do 
Rock cut first 2 
miles; remainder 
in earth, with 
small rock cuts at 
intervals. 
Earth, with small 
rock cuts at inter- 
vals. 
Mostly cement grav- 
el and bowlders. 
do 
.. ..do 
do 
gate to waste gate No. 2. 
New channel: only slightly 
silted; grade uniform. 
