LOG OF

BI

)RING

B.1

1 of 1

CLIENT:

HDRIShiner

Moseley and Associates, Inc.

Rock Engineering & Testing Lab., Inc.

PROJECT:

New East Jetty: Mouth of Colorado River

,

4910 Neptune st.

LOCATION:

Matagorda County, TX

corpus Christi, TX 78405

Telephone: 361 8834555

NUMBER:

G207487

Fax: 3618834711

DATE(S) DRILLED:

07/24/07

-

07/24/07

FIELD DATA

LABORATORY DATA

DRILLING METHOD(S):

z

"

Hollow Stem Auger

0

LIMIT

!;:

c

C

GROUNDWATER INFORMATION:

~~

l-

x

W

z

w

(ij

w

"

D

0:

g!~

l-

e

;;;

u;

w

Z

I-

"

I!

"'

00

0

!

I-

~

0

"

~~~lrl!;

0

;

~~

0

~

N

t='

::>

w

_::>

~

Z

_aoo::~

0:

~

~Q

ci

w

~~~~5

::>

w'"

~

z

:r:

~

I-

D~

'"

""

. EL

~,

I-

a.

~~~~G

'"

::>

: EL + 1.0 NAVD' 88

a.

"

0

>-::>

~

z

w

'"

j/zli':':~@

LL

PL

PI

0:0

JPTION OF STRATUM

D

'"

"

DO.

"

r-

WATER DEPTH= B.S'

5

SS

N=5

23

NP

NP

NP

16

SILTY SAND, brown, wet, loose. (SM)

10

5-1

.'

..

55

N=7

25

Same as above, gray.

..

5-2

'

'

..

55

N=6

Same as above. (SM)

5-3

26

NP

NP

NP

15

15

55

-----

.

-

-_.

.-

-_

.

--

--_.

--

-~------------------------------

~

5-4

N= 12

25

POORLY GRADED SAND, with silt, gray with brown layers, wet,

medium dense.

55

N= 19

27

NP

NP

NP

11

Same as above. (SP-SM)

20

5-5

'.

.-

-_.

.-

-_.

c __

--_.

--

------------------------------

-----

55

N= 13

37

SILTY CLAYEY SAND, dark gray, wet, medium dense.

25

5-6

-----

.

-

-_.

.-

-_

.

---

--_.

--

-------------------------------

55

N=4

27

NP

NP

NP

11

POORLY GRADED SAND, with silt, dark gray, wet, very loose.

30

5-7

(SP-SM)

....

!

55

N=5

29

56

19

37

78

FAT CLAY, with sand, gray, very moist, finm. (CH)

35

5-6

-----

.-

---

.-

-_.

--

--_.

--

-------------------------------

~,

5H

P=2.5

24

104

1.7

SANDY FAT CLAY, brown and gray, very moist, very stiff.

40

5-9

5H

P= 1.75

21

33

16

17

40

CLAYEY SAND, brown and gray, moist, stiff. (SC)

S~10

45

Total Depth of I

'" .45' Below WaterLevel

!-

N - STANDARD PENETRATION TEST RESISTANCE

REMARKS:

Boring location was determined by RETL. Boring operations were performed by a

~

P - POCKET PENETROMETER RESISTANCE

drilling sub-contractor to RETL.

9

T - POCKET TORVANE SHEAR STRENGTH

Coordinates: N 28 35 24.9, W 95 58 58.3

---

August 27, 2007

HDR

I

Shiner Moseley and Associates, Inc.

RETL Job No.: G207487

PROPOSED NEW EAST JETTY

Mouth of the Colorado River

Matagorda County, Texas

The soil conditions encountered at the boring locations have been summarized and soil

properties including plasticity, strength, grain size and classification are provided

in Tables 3

through

7. The following terms and acronyms are used in these tables:

EL

-8 to -32

-32 to -42

-42 to -47

-47 to -67

-67 to -75

EL

-12to-16

-16to-27

-27 to -32

-32 to -42

-42 to -45

EL

=

Approximate depth in feet referenced to water surface elevation.

LL

=

Liquid Limit, %

PI

= Plasticity Index

C

=

Soil Cohesion, psf (undrained)

~

=

Angle of Internal Friction, deg. (undrained)

Ye

=

Effective soil unit weight, pef

-#200

=

% silt and clay size particles

N

= Standard Penetration Value range

P = Hand Penetrometer range, tsf

NP

=

Non plastic material

TABLE 3: SOIL PROFILE FOR BORINGS B-1 AND B-3

Description

LL

PI

C

4>

y.

-#200

Silty

SANDI

NP

NP

0

29

55

4-16

Poorly Graded SAND

Fat CLAY

51-59

33-38

1500

0

60

72-78

Clayey SAND

33

17

1500

0

60

31-40

Poorly Graded SAND

NP

NP

0

35

60

5-7

Fat CLAY

69

42

1000

0

55

88-90

TABLE 4: SOIL PROFILE FOR BORING B-2

Description

LL

PI

C

4>

y.

-#200

Silty SAND

NP

NP

0

28

55

13

Clayey SAND

47

31

300

0

55

36-45

Sandy Fat CLAY

---

---

200

0

55

---

Sandy Lean CLAY

38-47

23-31

2000

0

60

59-68

Poorly Graded SAND

NP

NP

0

30

55

7

7of14

NorP

N~4-21

P~.5

P~1.75-2.5

N~7-72

N~4-7

NorP

N~8

N~2-3

N~2

P~4.25

N~7

I

1

I

f

I

I'

!

I

I

I

I

I

I

I

I

!

I

I

I

i

I

I

!

I

l

~

---

August 27, 2007

HDR

I

Shiner Moseley and Associates, Inc.

RETL Job No.: G207487

PROPOSED NEW EAST JETTY

Mouth ofthe Colorado River

Matagorda County, Texas

TABLE 8: GENERALIZED SOIL STRATIGRAPHY FOR

WATERSIDE ZONE A (BORINGS B-1, B-3, B-4, AND B-5)

Approximate

Elevation,

ft

Description

C

cjl

C'

cjl'

y,

(NAVD'88)

-8 to -32

Sand

0

29

0

30

55

-32 to-47

Clay

1500

0

520

25

60

-47

to -67

Sand

0

35

0

35

60

-67 to -75

Clay

1000

0

400

20

55

TABLE 9: GENERALIZED SOIL STRATIGRAPHY FOR

LANDSIDE ZONE B (BORING B-6)

Approximate

Elevation, ft

Description

C

cjl

C'

cjl'

y,

(NAVD'88)

-6to-15