measurements. 
CONCRETE LINING FOR IRRIGATION CANALS. 
Loss per mile. 
Maxi- 
mum. 
Per 
cent. 
0.88 
Mini- 
mum. 
Mean. 
Loss per 
square 
foot of 
wetted 
area in 
24 hours. 
Character of material 
in the channel. 
Source of informa- 
tion. 
Remarks. 
Per 
cent. 
2.19 
.70 
•16. 00 
•46. 00 
11.30 
44.50 
9.50 
3.25 
2.50 
Per 
cent. 
0.84 
1.40 
5.20 
6.75 
13.60 
45.25 
64. 00 1 
11.50 
Cu. feet. 
0.30 
.32 
.33 
7.66 
ll-io! 
8.60 
2.65 
3() 
.17, 
.20 
5.63 
1.10 
5.90 
See remarks. 
Report W. H. Code, 
O. E. S. Bui. 104, 
Sep. No. 2, 1900. 
'.y/.do'".'.'.'.'.'.'.'.'..v. 
....do 
.do. 
Report A. E. Chand- 
ler, O. E. S. Bui. 
119, Sep. No. 2, 
1901. 
....do 
Report A. E. Chand- 
ler, O. E. S. Bui. 
119, Sep. No. 2, 
1901. 
....do 
.do. 
[Report A. E. Chand- 
ler, O. E. S. Bui. 
119, Sep. No. 2, 
[ 1901. 
....do 
.do. 
Report Frank 
Adams, O. E. S. 
Bui. 158, Sep. No. 
3, 1904. 
Report Frank 
Adams, O. E. S. 
Cir. 108, 1909. 
do 
....do 
Report J. E. Road- 
house, O. E. S. 
Bui. 158, Sep. No. 
3, 1904. 
Sandy, weedy, and 
flat; 2 miles in em- 
bankment. 
.do. 
Channel coated with analmost 
impervious silt deposit. 
Do. 
Do. 
Do. 
Do. 
First use in 5 years. Gopher 
and squirrel holes in chan- 
nel bed. 
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 
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. 
Measured at head. For first 
4 1 miles bottom width 5 
feet, grade 8 feet per mile. 
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. 
Measured June 16, 1903. 
Measured June 23, 1903. 
