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 Solana Beach Coastal Preservation Association
August 20, 1998
Project No. 1831
TABLE 1
GRAIN SIZES FOR VARIOUS NATURAL IMPORTED BEACHES IN SAN DIEGO COUNTY
Batiquitos
Encinas
Encinas
South
Carlsbad
Agua
Lagoon
Creek
Creek
Moonlight
U.S.
Swami's
Cardiff
Fletcher
San
La Jolla
Oceanside
Mission
Seawall
Coronado
Hedionda
Grain
Beach
Beach
Inlet
Beach
Std.
Beach
State
Cove
Dieguito
Shores
Buccaneer
Beach
Beach
Beach
Beach
Size
VB Court
VB Court
(imported)
VB Courts
Sieve
Beach
Beach
Beach
VB Courts
Beach
VB Courts
(dredged)
VB Courts
(dredged)
(mm)
(dredged)
(dredged)
"Red Sand"
(imported)
Size
Access
4
4.76
100.0%
100.0%
100.0%
100.0%
100.0%
100.0%
100.0%
100.0%
100.0%
100.0%
100.0%
100.0%
100.0%
100.0%
7
2.83
100.0%
100.0%
100.0%
100.0%
100.0%
100.0%
100.0%
100.0%
98.7%
98.5%
100.0%
99.7%
100.0%
100.0%
10
2
100.0%
100.0%
100.0%
100.0%
100.0%
99.9%
100.0%
99.6%
98.3%
98.0%
100.0%
99.5%
99.8%
100.0%
14
1.41
100.0%
100.0%
100.0%
100.0%
100.0%
99.8%
100.0%
98.1%
97.7%
97.5%
99.9%
99.2%
99.4%
100.0%
18
1
100.0%
99.8%
100.0%
100.0%
100.0%
99.6%
100.0%
94.1%
96.9%
96.7%
99.5%
98.9%
98.9%
100.0%
25
0.71
100.0%
99.6%
100.0%
99.9%
100.0%
99.3%
99.9%
83.3%
94.9%
94.5%
97.1%
98.0%
98.1%
100.0%
35
0.5
99.8%
98.1%
100.0%
99.8%
99.9%
98.3%
99.7%
58.0%
87.4%
87.1%
82.1%
94.4%
95.5%
99.9%
45
0.35
97.9%
88.5%
99.9%
99.3%
99.7%
95.5%
97.9%
30.7%
76.5%
75.9%
59.1%
79.4%
85.4%
96.4%
60
0.25
78.1%
42.9%
97.7%
82.2%
93.6%
69.1%
73.1%
13.6%
51.2%
49.0%
39.3%
47.5%
53.1%
62.3%
80
0.177
35.2%
12.7%
57.0%
36.4%
71.7%
25.7%
29.4%
6.3%
21.5%
20.8%
29.4%
23.3%
23.3%
23.9%
120
0.125
6.3%
2.7%
17.1%
9.5%
33.4%
5.9%
7.9%
2.6%
4.5%
4.7%
23.5%
5.1%
7.3%
5.2%
170
0.088
1.5%
0.7%
3.4%
2.1%
4.7%
1.2%
1.6%
1.1%
4.5%
1.5%
21.2%
2.0%
2.4%
1.0%
200
0.074
0.6%
0.4%
1.0%
0.6%
0.4%
0.5%
0.8%
0.8%
0.9%
0.8%
20.4%
1.2%
1.5%
0.6%
D(60)
0.22
0.29
0.18
0.21
0.16
0.23
0.23
0.52
0.28
0.29
0.36
0.29
0.27
0.25
D(50)
0.20
0.27
0.17
0.20
0.15
0.22
0.21
0.46
0.25
0.25
0.30
0.26
0.24
0.23
D(30)
0.17
0.22
0.14
0.16
0.12
0.18
0.18
0.35
0.20
0.20
0.18
0.20
0.19
0.19
D(10)
0.13
0.16
0.11
0.13
0.09
0.14
0.13
0.23
0.14
0.14
NA
0.14
0.13
0.14
Phi(50)
2.31
1.91
2.57
2.33
2.76
2.20
2.24
1.13
2.02
1.98
1.72
1.95
2.04
2.14
Uniformity Coefficient, Cu
1.66
1.76
1.72
1.70
1.70
1.73
1.75
2.26
2.01
2.05
NA
2.08
2.03
1.78
Curvature Coefficient, Cc
0.97
1.02
1.04
1.00
0.95
1.07
1.07
1.01
0.97
0.98
NA
0.97
1.03
1.05
USCS (ASTM)
SP
SP
SP
SP
SP
SP
SP
SP
SP
SP
SM
SP
SP
SP
Munsell Color
2.5Y 6/1
2.5Y 6/2
2.5Y 5/1
2.5Y 5/1
2.5Y 4/1
2.5Y 7/1 2.5Y 6/1
2.5Y 7/1
2.5Y 7/2
2.5Y 6/1
5 YR 4/4
2.5Y 6/1
2.5Y 6/1
2.5Y 5/1
Light
brownish
Light
Light
Reddish
Dark
Light
gray
Gray
gray
gray
brown
Gray
Gray
Gray
Gray
Gray
gray
Gray
gray
Gray
[Reproduced from Woodward-Clyde Consultants, 1998]
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