Silos and Silage in Colorado. 
.9 
Weight 
Total weight 
Depth of 
per cu. ft. at 
1 sq. ft. area 
Silage, 
different depths, 
to given depth 
feet 
lbs. 
lbs. 
1 
18.7 
18.7 
2 
20.4 
39.1 
3 
22.1 
61.2 
4 
23.7 
84.9 
5 
25.4 
110.3 
6 
27.0 
137.3 
7 
28.5 
165.8 
8 
30.1 
195.9 
9 
31.6 
227.5 
10 
33.1 
260.6 
11 
34.5 
295.1 
12 
35.9 
331.0 
13 
37.3 
368.3 
14 
38.7 
407.0 
15 
40.0 
447.0 
16 
41.3 
488.3 
17 
42.6 
530.9 
18 
43.8 
574.7 
Weight 
Total weight 
Depth of 
per cu. ft. at 
1 sq. ft. area 
Silage, 
different depths. 
to given depth, 
feet 
lbs. 
lbs. 
19 
45.0 
619.7 
20 
46.2 
665.9 
21 
47.4 
713.3 
22 
48.5 
761.8 
23 
49.6 
811.4 
24 
50.6 
862.0 
25 
51.7 
913.7 
26 
52.7 
966.4 
27 
53.6 
1,020.0 
28 
54.6 
1,074.6 
29 
55.5 
1,130.1 
30 
56.4 
1,186.5 
31 
57.2 
1,243.7 
32 
58.0 
1,301.7 
33 
58.8 
1,360.5 
34 
59.6 
1,420.1 
35 
60.3 
1,480.4 
36 
61.0 
1,541.4 
With the two tables given above, one can easily figure the ca¬ 
pacity of a partially emptied silo. For example, a 12x36 silo is 
emptied until only 20 feet of silage remains. Figure the amount of 
silage in the silo. One square foot of area through 36 feet in depth 
weighs 1,541.4 pounds, but the top 16 feet, which weigh only 488.3 
pounds, have been removed, leaving in the silo 1,053.1 pounds for 
every square foot of area. A 12-foot silo has 113.10 square feet 
of area; therefore there would be 113.10 times 1,053.1 pounds, or 
119,105.61 pounds, or approximately 59^ tons of silage left in the 
silo. Partially filled silos, of course, have a capacity equal to a silo 
whose depth would be the same as the depth of the silage. If a 
12x40 silo were filled to only 26 feet, the weight of that silage 
would be the same as that of a full 12x26 silo. 
Floor .—A cement floor is not necessary in the silo under ordi¬ 
nary clay soil conditions. Where there is danger of seepage into 
the silo a floor should be put in. Where the soil is very gravelly so 
that the drainage from the silo would be very rapid, it would be 
advisable to lay a floor in the silo. 
Roof .—A roof on a silo adds greatly to its appearance; giving 
it a more finished appearance. A tight roof also helps to decrease 
freezing and adds to the comfort of the feeder during the periods 
of storm. However, a roof is not entirely essential. 
Chute .—A chute should be built on all above ground silos, as 
without it a great deal of waste of silage would result. Silage 
would be scattered over considerable space by throwing it down 
