Shape: Fan shaped, 1700 ft. radius, length of arc, 3500 ft.
Slopes: 61% is in 0-1 ½% class; 38% in 1 ½-4%; 1% in 4-7%. Aspect SE
Soils: Lossial over glacial till; topsoil - medium textured, medium granular structure, moderately deep (11-18 in.); subsoil - medium silty clay loam texture, weakly developed fine blocky structure, moderately permeable; internal drainage - medium. Flannigan silt loam - 69%; Drummer silty clay loam - 17%; Sunbury silt loam - 8%; Catlin silt loam - 6%.
Erosion: 1 - 100%.
Land Capability: I - 60%; II - 40%.
Surface Drainage: Good, principal waterway - 2000 ft.; main waterway has two branches, each draining about half the area; narrow blacktop road, 2300 ft. long, N-S across west half of area, cluvert capacities small; tile drains under main waterways discharge below weir.
Instrumentation: Runogg - 16% broadcrested concrete weir with 5:1 side slopes, continuous water stage recorder; precipitation - 2 recording and 1 standard gage.
Character of Flow: Ephemeral, continuous.
Watershed Conditions:
Crop Cover - Percent of Total Area
Year
Corn
Soy Beans Wheat
Clover
Oats
Meadow
Grass
Roads
The common rotation on these fields is corn, soybeans, wheat, sweet corn; or corn, oats, 2 years alfalfa-brome meadow
1949
19.3
0.4
13.2
23.0
26.5
14.4
3.2
1950
13.6
19.3
11.5
38.0
14.4
3.2
1951
38.4
13.6
19.3
11.1
14.4
3.2
1952
23.0
13.6
38.4
7.3
14.4
3.2
1953
40.1
42.2
14.4
3.2
1954
7.3
32.8
42.2
14.4
3.2
1955
57.6
13.6
11.1
14.4
3.2
Crops, Percent by Years with Planting (P) & Harvest (H) dates, When Known
Year
Corn
Wheat
Soybeans
Oats
Meadow
Grass
Roads
Ac.
P
H
Ac.
P
H
Ac.
P
H
Ac.
Ac.
Ac.
Ac.
1960
22.3
19.4
39.8
14.7
3.8
1961
13.9
5.5
07-26
22.3
05-27
39.8
14.7
3.8
1962
45.3
05-20
10-27 to 11-26
34.6
05-23
1.6
14.7
3.8
1963
6.5
05-08 to 05-14
11-14 to 11-15
13.8
40.4
10-07 to 10-13
20.8
14.7
3.8
1964
68.4
05-08 to 05-15
10-31 to 11-05
3.6
10-17 to 10-20
1.9
7.6
14.7
3.8
1965
6.5
05-10 to 05-13
10-27 to 11-19
0.6
74.4
10-30 to 11-04
14.7
3.8
1966
21.3
10-29 to 11-30
60.2
10-01 to 10-29
14.7
3.8
1967
53.7
3.0
24.8
14.7
3.8
1968
24.3
04-29 to 05-10
11-30
57.2
06-05 to 06-12
10-18
14.7
3.8
1969
43.3
04-30 to 05-08
12-02
38.2
05-19 to 06-19
10-06
14.7
3.8
1970
13.9
05-06 to 05-22
Completed 11-08
67.6
05-20 to 06-08
Completed 11-08
14.7
3.8
1971
24.3
04-19 to 05-14
Completed 11-21
57.2
05-15 to 05-27
Completed 10-18
14.7
3.8
1972
57.2
05-05 to 05-18
Completed 02-13-73
24.3
05-17 to 06-16
Completed 10-20
14.7
3.8
1973
36.3
05-04 to 05-25
Completed 12-02
45.2
06-01 to 06-14
Completed 10-10
14.7
3.8
1974
55.3
05-06 to 06-29
Completed 10-28
3.0
10-21 to 10-22
Completed 07-08-75
23.2
06-16 to 07-03
Completed 10-22
14.7
3.8
1975
39.3
04-21 to 05-06
10-24 to 11-07
42.2
05-03 to 05-17
10-01 to 10-10
14.7
3.8
Generally Represents: Cultivated areas of the Iowa-Illinois Deep Loess Drift Area having medium internal drainage, good surface drainage and moderate erosion found principally in northern two-thirds of Illinois.
61002 IB MONTICELLO IL
Location: Platt Co. Il.; 5 mi. SW of Monticello: Sangamon River, Illinois River, Misissipi River Basin.
Shape: Crescent, about 850 ft. wide by 2300 ft. long.
Slopes: 80% is in 0-1 ½$ class; 20% in 1 ½-4%. Aspect S
Soils: Lossial over glacial till; topsoil - medium textured, medium granular structure, moderately deep (11-18 in.); subsoil - medium silty clay loam texture, weakly developed fine blocky structure, moderately permeable; internal drainage - medium. Flannigan silt loam - 58%; Drummer silty clay loam - 39%; Thorp silt loam - 3%.
Erosion: 1 - 100%.
Land Capability: 1 - 76%; II - 24%.
S
urface Drainage: Good, principal waterway - 2300 ft.; tile drains under main waterways discharges below weir.
Character of Flow: Ephemeral, continuous.
Instrumentation: Runoff - 16" broadcrested concrete weir with 5:1 side slopes, continuous water stage recorder; precipitation - recording gage.
Watershed Conditions:
Crop Cover - Percent of Total Area
Year
Corn
Soy Beans Wheat
Clover
Oats
Meadow
Grass
The common rotation on these fields is corn, soybeans, wheat, sweet corn; or corn, oats, 2 years alfalfa-brome meadow
1949
21.4
47.0
31.0
0.6
1950
21.4
23.5
54.5
0.6
1951
5.8
21.4
72.2
0.6
1952
44.1
21.4
5.8
28.1
0.6
1953
49.5
49.9
0.6
1954
21.4
28.1
49.9
0.6
1955
5.8
21.4
72.2
0.6
Crops, Percent by Years with Planting (P) & Harvest (H) dates, When Known
Year
Corn
Wheat
Soybeans
Oats
Meadow
Grass
Ac.
P
H
Ac.
P
H
Ac.
P
H
Ac.
P
H
Ac.
Ac.
1960
74.8
17.4
6.8
1.0
1961
74.8
06-14
17.4
03-28
07-26
6.8
1.0
1962
24.2
05-17
10-27 to 11-26
30.4
06-01
44.4
1.0
1963
44.4
05-08 to 05-14
11-14 to 11-15
24.2
10-01 to 10-07
30.4
1.0
1964
51.2
05-08 to 05-15
10-31 to 11-05
17.4
10-17 to 10-30
30.4
1.0
1965
44.4
05-10 to 05-13
10-27 to 11-19
37.2
10-31 to 11-04
17.4
1.0
1966
47.8
10-29 to 11-30
51.2
10-01 to 10-29
1.0
1967
6.8
92.2
1.0
1968
70.5
04-29 to 05-10
11-30
11.1
07-27
17.4
06-05 to 06-12
10-18
1.0
1969
17.4
04-30 to 05-08
12-02
81.6
05-19 to 06-19
10-26
1.0
1970
99.0
05-20 to 06-08
Completed 10-18
1.0
1971
81.6
04-19 to 05-14
Completed 11-21
17.4
05-15 to 05-27
Completed 10-18
1.0
1972
17.4
05-05 to 05-18
Completed 02-13-73
81.6
05-17 to 06-16
Completed 10-20
1.0
1973
81.6
05-04 to 05-25
Completed 12-02
17.4
06-01 to 06-14
Completed 10-10
1.0
1974
17.4
05-06 to 06-29
Completed 11-28
81.6
06-16 to 07-03
Completed 10-28
1.0
1975
81.6
04-21 to 05-06
10-24 to 11-07
17.4
05-03 to 05-17
10-01 to 10-10
1.0
Generally Represents: Cultivated areas of the Iowa-Illinois Deep Loess Drift Area having medium internal drainage, good surface drainage and moderate erosion found principally in northern two-thirds of Illinois.
U. S. Department of Agriculture | Agricultural Research Service