United States Department of Agriculture
Natural Resources Conservation Service
National Water Management Center Go to Accessibility Information
Skip to Page Content
Photo of River Bend





Pebble Count Data Flint Creek near West Siloam Springs, Oklahoma

INCHES PARTICLE MILLIMETER SIZE CLASS Total # Item % Cum %
  Silt/Clay <.062 Silt/Clay 20 25.64 25.64
  Very Fine .062-.125 Sand   0.00 25.64
  Fine .125-.25   0.00 25.64
  Medium .25-.50   0.00 25.64
  Coarse .50-1.0   0.00 25.64
.04 - .08 Very Coarse 1.0-2   0.00 25.64
.08 - .16 Very Fine 2-4 Gravel   0.00 25.64
.16 - .24 Fine 4-5.7   0.00 25.64
.24 - .31 Fine 5.7-8 1 1.28 26.92
.31 - .47 Medium 8-11.3 6 7.69 34.62
.47 - .63 Medium 11.3-16 7 8.97 43.59
.63 - .94 Coarse 16-22.6 10 12.82 56.41
.94 - 1.26 Coarse 22.6-32 12 15.38 71.79
1.26 - 1.9 Very Coarse 32-45 4 5.13 76.92
1.9 - 2.5 Very Coarse 45-64 10 12.82 89.74
2.5 - 3.8 Small 64-90 Cobble 5 6.41 96.15
3.8 - 5.0 Small 90-128 1 1.28 97.44
5.0 - 7.6 Large 128-180   0.00 97.44
7.6 - 10 Large 180-256   0.00 97.44
10 - 15 Small 256-362 Boulder   0.00 97.44
15 - 20 Small 362-512   0.00 97.44
20 - 40 Medium 512-1024   0.00 97.44
40 - 160 Large-Very Large 1024-2048   0.00 97.44
  Bedrock >2048 BEDROCK 2 2.56 100.00
  Total Particles Counted 78    

Pebble data from x-section between pool & riffle nr insturnment
(Rose/Pugh/Funderburk)

  Size (inches)
Max Mid Min
1   Clay/Loam  
2   Clay/Loam  
3   Clay/Loam  
4   Clay/Loam  
5   Clay/Loam  
6   Clay/Loam  
7 1.00 0.80 0.30
8 1.05 0.57 0.29
9 0.62 0.58 0.29
10   Sand  
11 2.00 0.85 0.54
12 1.05 0.69 0.39
13 1.24 0.91 0.52
14 2.12 0.88 0.50
15 2.10 0.72 0.31
16 2.18 1.55 1.49
17 0.70 0.35 0.26
18 1.50 0.85 0.55
19 2.60 2.00 1.65
20 1.75 1.19 0.22
21 1.82 1.19 0.69
22 2.25 1.05 0.61
23 2.00 1.95 1.72
24 4.03 2.85 0.67
25 2.45 2.14 0.63
26 6.95 4.20 1.88
27 1.45 0.77 0.69
28 1.00 0.70 0.34
29 2.09 1.00 0.61
30 1.77 1.18 0.49
31 0.99 0.44 0.28
32 0.45 0.38 0.19
33   Silt/Clay/Loam  
34   Limestone Bedrock  
35   Limestone Bedrock  

Pebble data from x-section at riffle above root wad pool
(Pugh/Funderburk)

  Size (inches)
Max Mid Min
1   Clay/Loam  
2   Clay/Loam  
3   Sandy/Clay/Loam  
4   Limestone Sand  
5   Sandy/Clay/Loam  
6   Clay/Loam  
7   Limestone Sand  
8   Limestone Sand  
9   Clay/Loam  
10 1.25 0.98 0.65
11 2.25 1.39 1.00
12   Sand/Silt  
13 3.10 2.85 1.50
14 0.60 0.48 0.28
15 1.21 0.98 0.43
16 2.46 2.18 1.46
17 2.98 1.80 0.50
18 1.05 0.93 0.58
19 1.86 1.21 0.71
20 2.43 2.00 1.60
21 0.41 0.28 0.22
22 1.06 1.03 0.44
23 3.44 1.81 0.64
24 0.80 0.51 0.20
25 1.36 0.78 0.50
26 1.68 0.97 0.90
27 4.38 3.44 1.45
28 3.77 2.63 0.95
29 0.60 0.35 0.22
30 3.35 2.59 1.54
31 1.70 1.49 0.78
32 1.90 1.82 0.58
33 1.38 0.48 0.36
34 0.78 0.39 0.33
35 0.89 0.46 0.34
36 2.86 1.95 0.90
37 0.80 0.63 0.40
38 1.92 1.29 0.74
39 2.08 1.91 0.81
40 0.77 0.38 0.30
41   Clay/Loam  
42 0.83 0.61 0.21
43   Clay/Loam  

Ranked Pebble Data

Size
(mm)
Mid
Ranked
Size
(mm)
Particle Particle Total
Number
0 0.00 Silt/Clay Silt/Clay 20
0 0.00 Silt/Clay Silt/Clay
0 0.00 Silt/Clay Silt/Clay
0 0.00 Silt/Clay Silt/Clay
0 0.00 Silt/Clay Silt/Clay
0 0.00 Silt/Clay Silt/Clay
20.32 0.00 Silt/Clay Silt/Clay
14.48 0.00 Silt/Clay Silt/Clay
14.73 0.00 Silt/Clay Silt/Clay
0 0.00 Silt/Clay Silt/Clay
21.59 0.00 Silt/Clay Silt/Clay
17.53 0.00 Silt/Clay Silt/Clay
23.11 0.00 Silt/Clay Silt/Clay
22.35 0.00 Silt/Clay Silt/Clay
18.29 0.00 Silt/Clay Silt/Clay
39.37 0.00 Silt/Clay Silt/Clay
8.89 0.00 Silt/Clay Silt/Clay
21.59 0.00 Silt/Clay Silt/Clay
50.80 0.00 Silt/Clay Silt/Clay
30.23 0.00 Silt/Clay Silt/Clay
30.23 7.11 Gravel Fine B 1
26.67 8.89 Gravel Medium A 6
49.53 8.89 Gravel Medium A
72.39 9.65 Gravel Medium A
54.36 9.65 Gravel Medium A
106.68 9.91 Gravel Medium A
19.56 11.18 Gravel Medium A
17.78 11.68 Gravel Medium B 7
25.40 12.19 Gravel Medium B
29.97 12.19 Gravel Medium B
11.18 12.95 Gravel Medium B
9.65 14.48 Gravel Medium B
0 14.73 Gravel Medium B
2050 15.49 Gravel Medium B
2050 16.00 Gravel Coarse A 10
  17.53 Gravel Coarse A
  17.78 Gravel Coarse A
  18.29 Gravel Coarse A
  19.56 Gravel Coarse A
0 19.81 Gravel Coarse A
0 20.32 Gravel Coarse A
0 21.59 Gravel Coarse A
0 21.59 Gravel Coarse A
0 22.35 Gravel Coarse A
0 23.11 Gravel Coarse B 12
0 23.62 Gravel Coarse B
0 24.64 Gravel Coarse B
0 24.89 Gravel Coarse B
24.89 24.89 Gravel Coarse B
35.31 25.40 Gravel Coarse B
0 26.16 Gravel Coarse B
72.39 26.67 Gravel Coarse B
12.19 29.97 Gravel Coarse B
24.89 30.23 Gravel Coarse B
55.37 30.23 Gravel Coarse B
45.72 30.73 Gravel Coarse B
23.62 32.77 Gravel Very Coarse A 4
30.73 35.31 Gravel Very Coarse A
50.80 37.85 Gravel Very Coarse A
7.11 39.37 Gravel Very Coarse A
26.16 45.72 Gravel Very Coarse B 10
45.97 45.97 Gravel Very Coarse B
12.95 46.23 Gravel Very Coarse B
19.81 48.51 Gravel Very Coarse B
24.64 49.53 Gravel Very Coarse B
87.38 49.53 Gravel Very Coarse B
66.80 50.80 Gravel Very Coarse B
8.89 50.80 Gravel Very Coarse B
65.79 54.36 Gravel Very Coarse B
37.85 55.37 Gravel Very Coarse B
46.23 65.79 Cobble Small A 5
12.19 66.80 Cobble Small A
9.91 72.39 Cobble Small A
11.68 72.39 Cobble Small A
49.53 87.38 Cobble Small A
16.00 106.68 Cobble Small B 1
32.77 2050.00 Bedrock Bedrock 2
48.51 2050.00 Bedrock Bedrock

< Back to Flint Creek North West Siloam Springs, Oklahoma