12 LOSSES FROM CANALS BY SEEPAGE. 
ported. The amount of water in the lateral was measured 
by floats at two points nearly one-half mile apart. The dis- 
charges were found to be 2.85 and 2.43 cu. ft. per second 
in two places, or a loss of .93 cu.ft.per sec. per mile of ditch, 
or equivalent to a depth of 3.72 feet oyer the surface of the 
ditch. If the gravel consists of one-third voids this would 
be equivalent to a velocity of 12 feet per day through the 
soil. 
TABLE II a. 
LATERAL 1C RIO GRANDE CANAL SYSTEM. 
Measurement by R. E. Trimble. 
Date and Hour. 
Place of Measurement. 
Amount 
Measured 
Sec. Feet. 
Outtake. 
Sec. Feet. 
Gain or 1 
Loss. 
Sec. Feet. 
Distance 
in 
Miles. 
Angnst 2, -IrSO j>. m 
mi’lefi 
18.79 
21.17 
17. ’6 
15.06 
“ 4:00 p m 
“ 3:45 p. m 
4th mile post 
5th mile post 
-T2.38 
-3.51 
-2.60 
0. 5 
1. 
1. 
“ 3:20 p.m 
6th mile post 
Lateral 100 j ards below 6-m 
Lateral 14 mile below 6-m. . . 
At 7th mile post 
7.56 
0 
“ 2:30-2:45 p. m 
'"i'.sb" 
-0.20 
1. 
PRAIRIE CANAL. 
1897— 
July 13, 3:20 p, m 
Ne r headgate 
36.41 
McDonald lateral 
2.25 
.08 
Small ditch 
“ “ 4:20 p. m 
lli mi. west Gunbarrel road 
Lateral 
35 . .50 
^1.42 
3.5 
1.79 
0.13 
hi 
T lateral . ... 
At Gunbarrel road 
31.91 
29.25 
31 39 
-1.80 
1.5 
“ 14, 8:20 a. m 
At Gunbarrel road 
North of North Farm 
'• “ 9:10 a’, m 
+2 14 
2. 
3 T laterals 
2.81 
“ “10:25 a. m 
'4 miles east 
29.62 
27.80 
-T1.04 
-1.80 
2. 
1. 
“ “ 11:00 a. m 
5 Til i les east ... ... 
TABLE II b. 
LATERAL IG RIO GRANDE CAN \L SYSTEM. 
Date and Hour. 
Temp, of 
Water. 
Area of 
Section. 
Sq. Feet. 
Average 
Deptli. 
Feet. 
Greatest | 
Depth, 1 
Feet. 1 
Surface 
Width, 
Feet. 
Gain or 
Loss. 
Sec. Ft. 
nistance 
in Miles. 
Chtrres- 
ponding 
Depth of 
Loss. 
Aug. 2, 4 30 p. m. 
70“ 8 
1 1 
10.48 
.65 
0.89 
16. 
......... 
4 00 p. m. 
72°. 3 
9.38 1 
..59 
0.90 i 
16. 
+2‘.38' 
"+l’95" 
“ 3:45 p. m. 
75°. 4 
6.94 
. / 3 
1.10 
9.5 
-3 51 
1.0 
-2.88 
3:20 p. m. 
78°. 0 
8 96 
1 .75 
1.04 
12. 
-2.60 
1.0 
-3.60 
“ 2:30 p. m. 
81°. 0 
10.04 
.o9 
1.32 
11.3 
AO. 35 
l.O 
+ .48 
PRAIRIE CANAL. 
July 13, 3:20 p. m. 
“ “ 4:20 p. m. 
38 30 
17.42 
1 38 
.67 
“ “ 5:15 p. m. 
19.60 
.98 
“ 14,8:20 a.m. 
■■■62°" ■■ 
18.32 
.92 
“ “ 9:10 a.m. 
65° 
14.20 
.42 
“ “10:25 a.m. 
67°. 5 
12.30 
..57 
“ “11:00 a.m. 
71° 
15.12 
.57 
1 70 
1.40 
1.28 
1 20 
27.7 
26. 
20. 
20. 
+ 1 42 
-1.80 
0 
3 '4 
D4 
"V.ar 
-.86 
0.80 
23 
+2.14 
2 
+ .79 
0.65 
21.6 
-rl 04 
2 
+ .38 
0.65 
26. 
-1.80 
1 
-1.24 
