October 22, 2008
Attn.: Mr. Daniel Heilman, P
.E.
RETL Job No.: Gl08558
WEST GALVESTON ISLAND LG. SCALE BEACH NOURISHMENT PROJECT
South Jetty Borrow Source Area
Galveston, Texas
BORING NO.
GPS
COORDINATES
C-Ol
N.29.33841
W.94.72652
C-02
N.29.33981
W.94.72643
C-03
N.29.33892
W.94.72394
C-04
N
.29.33793
W
.94.72235
C-05
N.29.33645
W.94.72380
C-06
N.29.33628
W.94.72204
C-07
N.29.33395
W.94.72095
C-08
N.29.33927
W.94.71980
C-09
N.29.33801
W.94.72057
C-lO
N.29.33691
W.94.71941
e-n
N.29.33475
W.94.71779
C-12
N
.29.33336
W
.94.71779
C-13
N.29.33744
W.94.71832
C-14
N.29.33970
W.94.71677
C-15
N
.29.33820
W
.94.71687
C-16
N.29.33661
W.94.71597
C-17
N.29
.33607
W.94.71563
C-18
N.29.33411
W.94.71399
C-19
N.29.33955
W.94.71420
C-20
N.29.33748
W.94.71338
C-21
N.29.33338
W.94.71127
C-22
N.29.33564
W
.94.71037
C-23
N.29.33239
W.94.70724
C-24
N.29.33759
W.94.70845
C-25
N.29.33560
W.94.70621
C-26
N.29.33506
W.94.71728
C-27
N.29.33483
W. 94.7161 1
C-28
N.29.33711
W.94.72358
C-29
N.29.33742
W.94.71455
C-30
N.29.33811
W.94.72344
C-31
N.29.33493
W.94.72033
C-32
N.29.33541
W.94.73054
In addition, forty surface grab samples from onshore and offshore of the Gulf beach along west Galveston
Island were obtained and delivered to RETL by a representative
of HDR, Inc. The ground surface
elevations at the offshore grab sample locations are provided in the table below:
30f6
TOE
N
~
V101
APPROXI
MATE
VIBRACORE
LOCA
Tlm~
(
1992)
APPROXIMA
TE
SOIL BORING
LOCATlmJ
(2008)
APPROXIMA
TE
VIBRACORE
LOCA
TlmJ
(2006)
;~~~',::~;~S:e~
~~~~~ ~~U~3;)
POl
m
NORTHING
EASTING
0
13,696,434
3,330,395
®
13,696,162
3,336,429
©
13,692,769
3,337,805
®
13,693,282
3,332.723
®
13,693,492
3,331,448
en
13,694,395
3,330
,426
©
13,695,190
3,329,078
®
13,695,521
3,328,798
0
13,695,713
3,328,795
®
13,696,135
3,328,81
1
©
13,696,306
3,329,220
@
BR-22
LEGEND,
.C32
.2
~J
BORROW SOURCE AREA
"
TOE
6
M
AGNETOMETER
NJO
MAUES
WERE LOCA
TED
BY
P
BS&J DURING
FE
BRUARY 2008
SOUT
H
JETTY BORROW
SOURCE AREA
•
----------;1--------
11
1N~OU
T~
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.
__
_
~
7-
1
-------
1
RE
FER T
O NO
TES
ON SH
EET
C
101
----_~-'
1
2
- - - - - - -
-.J___
I
'
E
LEVATlm, co,
nOURS
ARE IU
FT
I'---~-_
/-
~
-
R
EFERErKED
TO NAVD88
"14
o
~_,,
__
-,~
.
=
....
iW
~
WEST GALVESTON ISLAND
END OF SEAWALL BEACH NOURISHMENT
."
PRELIMINARY
.9
GULF OF MEXICO
.CHI
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~
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em?
SOUT
HJETTYJ
PROJ
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SOURCE AREA
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@BR-19
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o
ISSUE
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ROJ
ECT
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HE
ILMAN
DRAW~
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BY BRUC
E
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Y
LAUREN
AUGUS
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lil~
SHINER
MOSELEY
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APFFEL PARK
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smllh
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rine
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e rvices
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LOG
OF
BORING C-09
SHEET 1 of 1
,,<> •
CLIENT:
HDR, Inc.
1(;.<;.\
>'!t'
Rock Engineering & Testing Lab., Inc.
PROJECT:
e'"",
~
n
6817 Leopard St.
Prop. Large Scale Beach Nourishment Project
~.
I
•
Corpus Christi, TX 78409
LOCATION:
S. Jetty Borrow Source Area; Galveston, TX
so~ ~
Telephone: (361) 883-4555
NUMBER:
G108558
4>'0
o~~
Fax: (361) 883-4711
'!i>y
\~CJ
DATE(S) DRILLED: 07/31/08 -
07/31/08
FIELD DATA
LABORATORY DATA
DRILLING METHOD(S):
ATTERBERG
Hollow Stem Auger
z
5'
0
LIMITS
~
'Ji:
>
e:.
e>
GROUNDWATER INFORMATION:
<
>:t5
f-
><
W
ur
6
0:-
Z
0
>
0:
!!iii]
w
to
;;;
w
W
f-
Vi
0::
00
Z
f-
::;
f-
"'
0
;,
E:
ur
0
~
~
t;:t;:t;:&l[:
::;;
i=
u,
~
J:
E
0
o
::;;
o
0
~
-
=>
N
"'
d'
.~
-. 00 D:::..J
W
0
F
"
0
co
~!!2~!z:3
0:
~~
'"f-O
0
>-
.~
w
ui
=>
:5
co
w'"
w"''''
z
-,
"'''' a
:s
:s
0: z -
'"
.J
OZZ~::.:::
in
a
o
!il
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o:
n,
a. w '"
SURFACE ELEVATION:
-160' NAVD
~
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::i:
"
ffi[:2f2a::
o
0
::;;
a.
a.
>-=>
" '" z
=>
0
"
z
GJ
."
0\
zo.:~~~
"
LL
PL
PI
"'0
Of-g
;,
DESCRIPTION OF STRATUM
'"
"-'
00.
,,'"
5
10
1
15
r
ii
55
No 1
24
4
,
POORLYGRADED SAND, with shell, gray, moist, very loose.
5-1
I
r
55
I
Same as above.
lD
5-2
No2
23
4
,
20
,
I:i
I
Same as above.
'k
55
8-3
No3
i
55
3
i POORLY GRADED SAND,with shell, gray, moist, medium.
5-4
No13
21
---
-----
--
--
--
--
--
- -\SILTY CLA
YEYSAND~
WithSiierCdark
gray;-
moisCvery 100s6." - -
.-
25
55
No1
27
18
5-5
5S
I
Same as above.
5-6
NoWaH
-----
-- -- ----
--
--
--~-------------------------------
~
,
55
I
CLAYEY SAND,with shell, dark gray, very moist, firm.
5-7
No4
41
48
...
~
30
55
No3
38
42
Same as above, soft.
8-8
55
N
o4
Same as above, firm.
5-9
I CLAYEY SAND, with shell, gray, moist, soft.
55
~.
35
8-10
No2
I Boring was extended to an elevation of -36-feet NAVD during
I the drilling operations.
I
-
N - STANDARD PENETRATION TEST RESISTANCE
REMARKS:
~:I
P - POCKET PENETROMETER RESISTANCE
Boring depth and location was determined by HDR, Inc.
Boring operations were
performed by RETL
T - POCKET TORVANE SHEAR STRENGTH
GPS Coord. N, 29.33801 W. 94.72057
. Geotechnical Engineering
. Construction Materials Testing
PROJECT NAME: West Galveston Island Large Scale Beach Nourishment Project
CLIENT: HDR, Inc.
BORING m, C-09
DESCRIPTION:
South Jetty Borrow Source Area
I
PERCENT SHELL BY WEIGHT (BASED ON #10 SIEVE)
I
-16' TO -18' NAVD
-18' TO -20' NAVD
-22' TO -24' NAVD
4.75
14.50
8.49
ASTM
%
FINER BY WEIGHT AFTER REMOVING SHELL
MESH
-16' TO -18' NAVD
-18' TO -20' NAVD
-22' TO -24' NAVD
#10
100.00
100.00
100.00
#18
93.80
79.60
87.10
#35
88.60
65.20
75.50
#60
83.00
55.60
65.30
#70
74.16
51.83
64.64
#100
27.77
21.08
26.28
#120
9.90
11.80
11.10
#170
4.40
4.50
3.90
#200
4.40
3.60
3.20
STATISTICS (EXCLUDING SHELL)
MEDIAN GRAIN
0.19
0.20
0.19
SIZE (mm)
MEAN GRAIN SIZE
0.19
0.36
0.29
(mm)
SORTING (e)
0.85
1.41
1.23
*The
-#10 material was utilized as the total sample for Grain Size Distribution Curve calculations.
PROJECT NAME:
CLIENT:
BORING ID.:
DESCRIPTION:
. Geotechnical Engineering
. Construction Materials Testing
West Galveston Island Large Scale Beach Nourishment Project
HDR, Inc.
C-09
South Jetty Borrow Source Area
I
PERCENT SHELL BY WEIGHT (BASED ON #10 SIEVE)
I
-24' TO -26' NAVD
-28' TO -30' NAVD
-30' TO -32' NAVD
N/A
N/A
N/A
ASTM
%
FINER BY WEIGHT AFTER REMOVING SHELL
MESH
-24'
TO -26' NAVD
-28' TO -30' NAVD
-30'
TO-32' NAVD
#10
N/A
N/A
N/A
#18
N/A
N/A
N/A
#35
N/A
N/A
N/A
#60
N/A
N/A
N/A
#120
N/A
N/A
N/A
#170
N/A
N/A
N/A
#200
17.90
47.80
42.40
STATISTICS (EXCLUDING SHELL)
MEDIAN GRAIN
N/A
N/A
N/A
SIZE
(mm)
MEAN GRAIN SIZE
N/A
N/A
N/A
(mm)
SORTING (6)
N/A
N/A
N/A
*C-09; -24' to -26' NAYO and C-09; -28' to -32' NAYO were only passed through the -#200 sieve.
u.s. SIEVE OPENING IN INCHES
I
U.S. SIEVE NUMBERS
I
HYDROMETER
6
4
3
2 1.5
1 3/4
1/2
3/8
3
6
8
10
14
16
20 30 40 50 60 100
14
0200
100
I
I
I
II
I
I
~
I
I
I
95
90
85
:'"
I~
80
75
70
I- 65
:r:
S2
60
LJ.J
S
>- 55
III
'"
LJ.J
50
z
Ii:
I- 45
z
LJ.J
6! 40
a.
LJ.J
35
30
25
20
15
10
5
\
0
0
~
100
10
. 1
0.1
0.01
0.001
~
0
GRAIN SIZE IN MILLIMETERS
5
'"
I COBBLES :
GRAVEL
I
SAND
I
~
Icoarse
medium
I
fine
I
SILT OR CLAY
~
coarse
fine
o
c,
G
Specimen 10
Depth
Classification
LL
PL
PI
Cc
Cu
w
@.
C-09
(-16' to -18' NAVDj
c,
Borrow Area (-16' to -18' NAVD)
0.98
1.52
z
~
w
~
~
~
~
0
z
o
-c
~
Specimen 10
Depth
0100
060
030
010
OfoGravel
OfoSand
OfoSiit
OfoClay
m
w
w
C-09
(-16' to -18' NAVDj
~.
2
0.189
0.152
0.125
0.0
co
w
'"
5
c,
0
'"
c,
m
~
~
GRAIN SIZE DISTRIBUTION
ro
0
"
~$.
Rock Engineering & Testing Lab., Inc.
w
6817 Leopard SI.
Project: Prop. Large Scale Beach Nourishment Project
~
'"
Corpus Christi, TX 78409
z
Telephone: (361) 883-4555
Location:
South Jetty Borrow Source Area; Galveston, Texas
~
Fax: (361) 883-4711
"
Number: G108558
'"
~
o
U,S. SIEVE OPENING IN INCHES
I
U.S. SIEVE NUMBERS
I
HYDROMETER
6
4
3
2 1.5
1
3/4
1/2
3/8
3
6
810 1416 20 30 40 50
60
100
140200
100
I
I
I
II
I
I
I
I
95
90
85
'\
80
75
70
... 65
J:
S2 60
."
U.J
'5:
I'a
>-
co
55
j
0::
~
50
u:
...
z
45
U.J
~
40
a.
U.J
35
30
25
20
15
10
~
\
5
ro
§
~
0
~
100
10
. 1
0.1
0.01
0.001
~
0
GRAIN SIZE IN MILLIMETERS
on
5
GRAVEL
SAND
I
'"
COBBLES
1
I
SILT OR CLAY
~
coarse
fine
coarse
medium
fine
o
c,
~
~
Specimen ID
Depth
Classification
LL
PL
PI
Cc
Cu
u
w
~.
C.09
(-18'
to -20' NAVD)
~
Borrow Area (.18' to .20' NAVD)
0.71
2.99
z
w
~
"
~
~
~
0
z
u
<
~
Specimen ID
Depth
D100
D60
D30
D10
%Gravel
%Sand
%Silt
%Ciay
w