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 Saugatuck River Near Redding, Connecticut

INCHES PARTICLE MILLI-METER SIZE CLASS XS 1
# of Sam-ples
XS 1
% In
Class
Mean
Size In
Class
XS 1 %
Cumu-lative
In Class
XS 3
# of Sam-ples
XS 3
% In
Class
Mean
Size In
Class
XS 3 - %
Cumu-lative
In Class
  Silt/Clay < 0.062 S/C 1 2.38 0.031 2.38 0 0.00 0.031 0.00
  Very Fine .062 - .125 S   0.00 0.0935 2.38 0 0.00 0.0935 0.00
  Fine .125 - .25 A 2 4.76 0.1875 7.14 5 14.29 0.1875 14.29
  Medium .25 - .50 N   0.00 0.375 7.14   0.00 0.375 14.29
  Coarse .50 - 1.0 D 2 4.76 0.75 11.90 3 8.57 0.75 22.86
.04-.08 Very Coarse 1.0 - 2 S   0.00 1.5 11.90   0.00 1.5 22.86
.08-.16 Very Fine 2 - 4     0.00 3 11.90 1 2.86 3 25.71
.16-.24 Fine 4 - 5.7 G   0.00 4.85 11.90 1 2.86 4.85 28.57
.24-.31 Fine 5.7 - 8 R 2 4.76 6.85 16.67 2 5.71 6.85 34.29
.31-.47 Medium 8 - 11.3 A   0.00 9.65 16.67 2 5.71 9.65 40.00
.47-.63 Medium 11.3 - 16 V 1 2.38 13.65 19.05 1 2.86 13.65 42.86
.63-.94 Coarse 16 - 22.6 E 4 9.52 19.3 28.57 2 5.71 19.3 48.57
.94-1.26 Coarse 22.6 - 32 L 3 7.14 27.3 35.71 1 2.86 27.3 51.43
1.26-1.9 Very Coarse 32 - 45 S 1 2.38 38.5 38.10 1 2.86 38.5 54.29
1.9-2.5 Very Coarse 45 - 64   4 9.52 54.5 47.62 2 5.71 54.5 60.00
2.5-3.8 Small 64 - 90 C - 3 7.14 77 54.76 3 8.57 77 68.57
3.8-5.0 Small 90 - 128 O L 3 7.14 109 61.90 1 2.86 109 71.43
5.0-7.6 Large 128 - 180 B E 3 7.14 154 69.05 3 8.57 154 80.00
7.6-10 Large 180 - 256 B S 4 9.52 218 78.57 2 5.71 218 85.71
10-15 Small 256 - 362 B D 6 14.29 309 92.86 1 2.86 309 88.57
15-20 Small 362 - 512 O E 1 2.38 437 95.24 2 5.71 437 94.29
20-40 Medium 512 - 1024 U R 2 4.76 768 100.00 1 2.86 768 97.14
40-160 Lrg to Very Lrg 1024 - 4096 L S   0.00 2560 100.00 1 2.86 2560 100.00
  BEDROCK   BDRK                
      TOTALS: 42 100.00     35 100.00    

X-Sect 1; Pebble Data, Right to Left Bank
A-axis (mm) B-axis (mm) C-axis (mm)
20 17 12
10 7 7
150 100 60
  Coarse Sand  
50 30 20
20 8 8
210 160 110
320 300 210
600 550 150
420 160 100
170 100 50
210 100 60
480 230 80
25 20 15
400 360 160
720 300 70
160 80 45
460 240 130
34 18 12
300 280 30
33 25 17
600 420 240
14 13 6
150 60 15
70 50 30
740 545 130
30 20 20
360 270 100
87 41 38
300 160 90
200 192 81
  Coarse Sand  
70 50 40
170 76 58
  Fine Sand  
  Organic Debris  
80 50 40
35 26 17
230 200 110
109 85 64
520 300 80
  Fine Sand  

X-Sect 1; Pebble Data, Ascending Order
A-axis (mm) B-axis (mm) C-axis (mm)
  Organic Debris  
  Fine Sand  
  Fine Sand  
  Coarse Sand  
  Coarse Sand  
10 7 7
20 8 8
14 13 6
20 17 12
34 18 12
25 20 15
30 20 20
33 25 17
35 26 17
50 30 20
87 41 38
70 50 30
70 50 40
80 50 40
150 60 15
170 76 58
160 80 45
109 85 64
150 100 60
170 100 50
210 100 60
210 160 110
300 160 90
420 160 100
200 192 81
230 200 110
480 230 80
460 240 130
360 270 100
300 280 30
320 300 210
520 300 80
720 300 70
400 360 160
600 420 240
740 545 130
600 550 150

X-Sect 3; Pebble Data, Right to Left Bank
A-axis (mm) B-axis (mm) C-axis (mm)
10 7 7
11 10 6
46 36 9
6 5 3
16 15 8
11 9 7
11 7 6
  Fine Sand  
  Fine Sand  
  Fine Sand  
  Fine Sand (Loam)
  Fine Sand  
120 95 85
30 18 6
  Coarse Sand  
540 380 40
290 210 100
4 3 2
  Coarse Sand  
190 88 30
325 305 170
65 55 12
600 380 130
900 600 170
370 230 100
55 25 14
310 155 53
130 90 80
230 135 55
105 63 9
89 87 14
  Coarse Sand  
300 164 44
20 20 10
1390 1280 460

X-Sect 3; Pebble Data, Ascending Order
A-axis (mm) B-axis (mm) C-axis (mm)
  Fine Sand  
  Fine Sand  
  Fine Sand  
  Fine Sand (Loam)
  Fine Sand  
  Coarse Sand  
  Coarse Sand  
  Coarse Sand  
4 3 2
6 5 3
10 7 7
11 7 6
11 9 7
11 10 6
16 15 8
30 18 6
20 20 10
55 25 14
46 36 9
65 55 12
105 63 9
89 87 14
190 88 30
130 90 80
120 95 85
230 135 55
310 155 53
300 164 44
290 210 100
370 230 100
325 305 170
540 380 40
600 380 130
900 600 170
1390 1280 460

< Back to Saugatuck River Near Redding, Connecticut