04-_Geotechnical_Exploration_and_Engineering_Evaluation.pdf
PDF 28 MB Posted
- Attached to
- Progreso Levee Improvements
- Solicitation number
- IBM14B0001
About this file
J.04 Geotechnical Exploration and Engineering Evaluation
View the file
Other files
| File | Type | Posted |
|---|---|---|
| 01-_Technical_Specifications_02-12-2014.pdf | ||
| 19-_Drawings_(Revisions).pdf | ||
| Amendment_A005.pdf | ||
| Amendment_A004.pdf | ||
| 18-_Design_Report.pdf | ||
| Amendment_A003.pdf | ||
| Amendment_A003 _Attachment_1_Q A.doc | DOC document | |
| Amendment_A002.pdf | ||
| Amendment_A001.pdf | ||
| 14-_SF_1413.pdf | ||
| 02-_Drawings.pdf | ||
| 10-_SF_25.pdf | ||
| 06-_IBWC_FORM_117.pdf | ||
| 01-_Technical_Specifications.pdf | ||
| IBM14B0001_FINAL_01_10_2014.pdf | ||
| 09-_SF_24.pdf | ||
| 05-_Wage_Determination.pdf | ||
| 08-_IBWC_FORM_116.pdf | ||
| 12-_SF_25B.pdf | ||
| 15-_SF_1414.pdf | ||
| 07-_IBWC_FORM_110.pdf | ||
| 11-_SF_25A.pdf | ||
| 03-_Geotechnical_Addendum _Subreach_I.pdf | ||
| 13-_SF_28.pdf | ||
| 16-_SF_1415.pdf |
Show all 25
On GovTribe
Work with this file
- Download the original file
- Contacts named in this file
- Similar government files
- Ask GovTribe AI about this file
Text version
FILL: CLAY, fat, hard, dark brown
- with calcareous nodules below a depth of about 2 feet
CLAY, fat, very stiff, brown, with black ferrous stains
CLAY, lean, stiff, brown, wet
Driller's Note: Converted to mud rotary drilling method at a depth of about 31-1/2 feet
SAND, silty, medium dense, brown
LOG OF BORING NO. DP-1
P L
A S
T
IC
IT
Y
IN
D
E X
SURFACE ELEVATION: 75.18 ft
U N
IT
D
R Y
W
IE
G H
T , p cf
Straight Flight Auger & Mud Rotary
DRILLING
METHOD: LOCATION:
PLASTIC
LIMIT
LIQUID
LIMIT
WATER
CONTENT
B L
O W
S P
E R
F T
10 20 30 40 50 60 70 80
DESCRIPTION OF MATERIAL
N 16556070.17700; E 1194373.11140
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0
SHEAR STRENGTH, TONS/FT2
N O
T E
: T H
E S
E L
O G
S S
H O
U
LD
N O
T B
E U
S E
D S
E P
A R
A T
E
LY
F R
O M
T H
E P
R O
JE
C
T R
E P
O R
T
DEPTH DRILLED:
DATE DRILLED:
DEPTH TO WATER:
DATE MEASURED:
S Y
M B
O L
S A
M P
L E
S
The Lower Rio Grande Flood Control Project Cameron County, Texas
27 ft 10/14/2008
D E
P T
H , F
T
50.0 ft 10/14/2008
PROJ. No.:
FIGURE:
AMA08-115-00
A-2a
TBPE Firm Registration No. F-3257
SAND, silty, medium dense, brown (continued)
- becomes dark brown in color below a depth of about 40 feet
SAND, with silt, poorly-graded, medium dense, brown
Boring terminated at a depth of about 50 feet.
NOTES:
During the drilling operations, groundwater was observed at a depth of about 27 feet. Upon completion of the drilling operations, the boring caved-in to a depth of about 45 feet.
Backfilled with cement/bentonite grout.
Elevation and coordinates provided by Client.
LOG OF BORING NO. DP-1
P L
A S
T
IC
IT
Y
IN
D
E X
SURFACE ELEVATION: 75.18 ft
U N
IT
D
R Y
W
IE
G H
T , p cf
Straight Flight Auger & Mud Rotary
DRILLING
METHOD: LOCATION:
PLASTIC
LIMIT
LIQUID
LIMIT
WATER
CONTENT
B L
O W
S P
E R
F T
10 20 30 40 50 60 70 80
DESCRIPTION OF MATERIAL
N 16556070.17700; E 1194373.11140
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0
SHEAR STRENGTH, TONS/FT2
N O
T E
: T H
E S
E L
O G
S S
H O
U
LD
N O
T B
E U
S E
D S
E P
A R
A T
E
LY
F R
O M
T H
E P
R O
JE
C
T R
E P
O R
T
DEPTH DRILLED:
DATE DRILLED:
DEPTH TO WATER:
DATE MEASURED:
S Y
M B
O L
S A
M P
L E
S
The Lower Rio Grande Flood Control Project Cameron County, Texas
27 ft 10/14/2008
D E
P T
H , F
T
50.0 ft 10/14/2008
PROJ. No.:
FIGURE:
AMA08-115-00
A-2b
TBPE Firm Registration No. F-3257
FILL: CLAY, lean, very stiff, dark brown, with calcareous nodules
CLAY, fat, hard to very stiff, brown, with calcareous nodules
Driller's Note: Converted to mud rotary drilling method at a depth of about 23 feet
LOG OF BORING NO. DP-2
P L
A S
T
IC
IT
Y
IN
D
E X
SURFACE ELEVATION: 76.05 ft
U N
IT
D
R Y
W
IE
G H
T , p cf
Straight Flight Auger & Mud Rotary
DRILLING
METHOD: LOCATION:
PLASTIC
LIMIT
LIQUID
LIMIT
WATER
CONTENT
B L
O W
S P
E R
F T
10 20 30 40 50 60 70 80
DESCRIPTION OF MATERIAL
N 16555166.27510; E 1194942.25526
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0
SHEAR STRENGTH, TONS/FT2
N O
T E
: T H
E S
E L
O G
S S
H O
U
LD
N O
T B
E U
S E
D S
E P
A R
A T
E
LY
F R
O M
T H
E P
R O
JE
C
T R
E P
O R
T
DEPTH DRILLED:
DATE DRILLED:
DEPTH TO WATER:
DATE MEASURED:
S Y
M B
O L
S A
M P
L E
S
The Lower Rio Grande Flood Control Project Cameron County, Texas
23 ft 10/14/2008
D E
P T
H , F
T
50.0 ft 10/14/2008
PROJ. No.:
FIGURE:
AMA08-115-00
A-3a
TBPE Firm Registration No. F-3257
CLAY, fat, hard to very stiff, brown, with calcareous nodules (continued)
Boring terminated at a depth of about 50 feet.
NOTES:
During the drilling operations, groundwater was observed at a depth of about 23 feet. Upon completion of the drilling operations, the boring caved-in to a depth of about 28.5 feet.
Backfilled with cement/bentonite grout.
Elevation and coordinates provided by Client.
LOG OF BORING NO. DP-2
P L
A S
T
IC
IT
Y
IN
D
E X
SURFACE ELEVATION: 76.05 ft
U N
IT
D
R Y
W
IE
G H
T , p cf
Straight Flight Auger & Mud Rotary
DRILLING
METHOD: LOCATION:
PLASTIC
LIMIT
LIQUID
LIMIT
WATER
CONTENT
B L
O W
S P
E R
F T
10 20 30 40 50 60 70 80
DESCRIPTION OF MATERIAL
N 16555166.27510; E 1194942.25526
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0
SHEAR STRENGTH, TONS/FT2
N O
T E
: T H
E S
E L
O G
S S
H O
U
LD
N O
T B
E U
S E
D S
E P
A R
A T
E
LY
F R
O M
T H
E P
R O
JE
C
T R
E P
O R
T
DEPTH DRILLED:
DATE DRILLED:
DEPTH TO WATER:
DATE MEASURED:
S Y
M B
O L
S A
M P
L E
S
The Lower Rio Grande Flood Control Project Cameron County, Texas
23 ft 10/14/2008
D E
P T
H , F
T
50.0 ft 10/14/2008
PROJ. No.:
FIGURE:
AMA08-115-00
A-3b
TBPE Firm Registration No. F-3257
FILL: CLAY, fat, hard, brown
- with calcareous nodules below a depth of about 2 feet
CLAY, fat, very stiff, brown
CLAY, fat, very stiff, brown to grayish-brown, with black ferrous stains
Driller's Note: Converted to mud rotary drilling method at a depth of about 21-1/2 feet
CLAY, sandy, lean, stiff to very stiff, brown
LOG OF BORING NO. DP-3
P L
A S
T
IC
IT
Y
IN
D
E X
SURFACE ELEVATION: 73.60 ft
U N
IT
D
R Y
W
IE
G H
T , p cf
Straight Flight Auger & Mud Rotary
DRILLING
METHOD: LOCATION:
PLASTIC
LIMIT
LIQUID
LIMIT
WATER
CONTENT
B L
O W
S P
E R
F T
10 20 30 40 50 60 70 80
DESCRIPTION OF MATERIAL
N 16554718.33680; E 1195839.83493
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0
SHEAR STRENGTH, TONS/FT2
N O
T E
: T H
E S
E L
O G
S S
H O
U
LD
N O
T B
E U
S E
D S
E P
A R
A T
E
LY
F R
O M
T H
E P
R O
JE
C
T R
E P
O R
T
DEPTH DRILLED:
DATE DRILLED:
DEPTH TO WATER:
DATE MEASURED:
S Y
M B
O L
S A
M P
L E
S
The Lower Rio Grande Flood Control Project Cameron County, Texas
19.5 ft 10/15/2008
D E
P T
H , F
T
50.0 ft 10/15/2008
PROJ. No.:
FIGURE:
AMA08-115-00
A-4a
TBPE Firm Registration No. F-3257
CLAY, sandy, lean, stiff to very stiff, brown (continued)
Boring terminated at a depth of about 50 feet.
NOTES:
During the drilling operations, groundwater was observed at a depth of about 20 feet. Within 15 minutes of encountering groundwater, groundwater was measured at about 19.5 feet. Upon completion of the drilling operations, the boring caved-in to a depth of about 38.5 feet. Backfilled with cement/bentonite grout.
Elevation and coordinates provided by Client.
LOG OF BORING NO. DP-3
P L
A S
T
IC
IT
Y
IN
D
E X
SURFACE ELEVATION: 73.60 ft
U N
IT
D
R Y
W
IE
G H
T , p cf
Straight Flight Auger & Mud Rotary
DRILLING
METHOD: LOCATION:
PLASTIC
LIMIT
LIQUID
LIMIT
WATER
CONTENT
B L
O W
S P
E R
F T
10 20 30 40 50 60 70 80
DESCRIPTION OF MATERIAL
N 16554718.33680; E 1195839.83493
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0
SHEAR STRENGTH, TONS/FT2
N O
T E
: T H
E S
E L
O G
S S
H O
U
LD
N O
T B
E U
S E
D S
E P
A R
A T
E
LY
F R
O M
T H
E P
R O
JE
C
T R
E P
O R
T
DEPTH DRILLED:
DATE DRILLED:
DEPTH TO WATER:
DATE MEASURED:
S Y
M B
O L
S A
M P
L E
S
The Lower Rio Grande Flood Control Project Cameron County, Texas
19.5 ft 10/15/2008
D E
P T
H , F
T
50.0 ft 10/15/2008
PROJ. No.:
FIGURE:
AMA08-115-00
A-4b
TBPE Firm Registration No. F-3257
FILL: CLAY, fat, very stiff, dark brown, with calcareous nodules
CLAY, lean, very stiff, dark brown
CLAY, fat, very stiff, brown
Driller's Note: Converted to mud rotary drilling method at a depth of about 21-1/2 feet
CLAY, sandy, lean, firm, brown
CLAY, fat, very stiff, brown
SAND, clayey, medium dense, brown
LOG OF BORING NO. DP-4
P L
A S
T
IC
IT
Y
IN
D
E X
SURFACE ELEVATION: 73.12 ft
U N
IT
D
R Y
W
IE
G H
T , p cf
Straight Flight Auger & Mud Rotary
DRILLING
METHOD: LOCATION:
PLASTIC
LIMIT
LIQUID
LIMIT
WATER
CONTENT
B L
O W
S P
E R
F T
10 20 30 40 50 60 70 80
DESCRIPTION OF MATERIAL
N 16554374.29300; E 1196669.28711
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0
SHEAR STRENGTH, TONS/FT2
N O
T E
: T H
E S
E L
O G
S S
H O
U
LD
N O
T B
E U
S E
D S
E P
A R
A T
E
LY
F R
O M
T H
E P
R O
JE
C
T R
E P
O R
T
DEPTH DRILLED:
DATE DRILLED:
DEPTH TO WATER:
DATE MEASURED:
S Y
M B
O L
S A
M P
L E
S
The Lower Rio Grande Flood Control Project Cameron County, Texas
20.5 ft 10/18/2008
D E
P T
H , F
T
50.0 ft 10/18/2008
PROJ. No.:
FIGURE:
AMA08-115-00
A-5a
TBPE Firm Registration No. F-3257
SAND, clayey, medium dense, brown (continued)
Boring terminated at a depth of about 50 feet.
NOTES:
During the drilling operations, groundwater was observed at a depth of about 20 feet. Within 15 minutes of encountering groundwater, groundwater was measured at about 20.5 feet. Upon completion of the drilling operations, the boring caved-in to a depth of about 46 feet. Backfilled with cement/bentonite grout.
Elevation and coordinates provided by Client.
LOG OF BORING NO. DP-4
P L
A S
T
IC
IT
Y
IN
D
E X
SURFACE ELEVATION: 73.12 ft
U N
IT
D
R Y
W
IE
G H
T , p cf
Straight Flight Auger & Mud Rotary
DRILLING
METHOD: LOCATION:
PLASTIC
LIMIT
LIQUID
LIMIT
WATER
CONTENT
B L
O W
S P
E R
F T
10 20 30 40 50 60 70 80
DESCRIPTION OF MATERIAL
N 16554374.29300; E 1196669.28711
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0
SHEAR STRENGTH, TONS/FT2
N O
T E
: T H
E S
E L
O G
S S
H O
U
LD
N O
T B
E U
S E
D S
E P
A R
A T
E
LY
F R
O M
T H
E P
R O
JE
C
T R
E P
O R
T
DEPTH DRILLED:
DATE DRILLED:
DEPTH TO WATER:
DATE MEASURED:
S Y
M B
O L
S A
M P
L E
S
The Lower Rio Grande Flood Control Project Cameron County, Texas
20.5 ft 10/18/2008
D E
P T
H , F
T
50.0 ft 10/18/2008
PROJ. No.:
FIGURE:
AMA08-115-00
A-5b
TBPE Firm Registration No. F-3257
FILL: CLAY, fat, very stiff, brown
CLAY, fat, hard, brown
CLAY, lean, with sand, very stiff to firm, brown
CLAY, fat, stiff, brown, wet
Driller's Note: Converted to mud rotary drilling method at a depth of about 16-1/2 feet
CLAY, lean, stiff, brown
SAND, silty, medium dense to dense, brown
LOG OF BORING NO. DP-5
P L
A S
T
IC
IT
Y
IN
D
E X
SURFACE ELEVATION: 75.96 ft
U N
IT
D
R Y
W
IE
G H
T , p cf
Straight Flight Auger & Mud Rotary
DRILLING
METHOD: LOCATION:
PLASTIC
LIMIT
LIQUID
LIMIT
WATER
CONTENT
B L
O W
S P
E R
F T
10 20 30 40 50 60 70 80
DESCRIPTION OF MATERIAL
N 16553755.20010; E 1197621.47760
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0
SHEAR STRENGTH, TONS/FT2
N O
T E
: T H
E S
E L
O G
S S
H O
U
LD
N O
T B
E U
S E
D S
E P
A R
A T
E
LY
F R
O M
T H
E P
R O
JE
C
T R
E P
O R
T
DEPTH DRILLED:
DATE DRILLED:
DEPTH TO WATER:
DATE MEASURED:
S Y
M B
O L
S A
M P
L E
S
The Lower Rio Grande Flood Control Project Cameron County, Texas
12.5 ft 10/18/2008
D E
P T
H , F
T
50.0 ft 10/18/2008
PROJ. No.:
FIGURE:
AMA08-115-00
A-6a
TBPE Firm Registration No. F-3257
SAND, silty, medium dense to dense, brown
- very dense below 48 feet
Boring terminated at a depth of about 50 feet.
NOTES:
During the drilling operations, groundwater was observed at a depth of about 13.5 feet.
Within 15 minutes of encountering groundwater, groundwater was measured at about 12.5 feet. Upon completion of the drilling operations, the boring caved-in to a depth of about 45.5 feet. Backfilled with cement/bentonite grout.
Elevation and coordinates provided by Client.
LOG OF BORING NO. DP-5
P L
A S
T
IC
IT
Y
IN
D
E X
SURFACE ELEVATION: 75.96 ft
U N
IT
D
R Y
W
IE
G H
T , p cf
Straight Flight Auger & Mud Rotary
DRILLING
METHOD: LOCATION:
PLASTIC
LIMIT
LIQUID
LIMIT
WATER
CONTENT
B L
O W
S P
E R
F T
10 20 30 40 50 60 70 80
DESCRIPTION OF MATERIAL
N 16553755.20010; E 1197621.47760
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0
SHEAR STRENGTH, TONS/FT2
N O
T E
: T H
E S
E L
O G
S S
H O
U
LD
N O
T B
E U
S E
D S
E P
A R
A T
E
LY
F R
O M
T H
E P
R O
JE
C
T R
E P
O R
T
DEPTH DRILLED:
DATE DRILLED:
DEPTH TO WATER:
DATE MEASURED:
S Y
M B
O L
S A
M P
L E
S
The Lower Rio Grande Flood Control Project Cameron County, Texas
12.5 ft 10/18/2008
D E
P T
H , F
T
50.0 ft 10/18/2008
PROJ. No.:
FIGURE:
AMA08-115-00
A-6b
TBPE Firm Registration No. F-3257
50/ 10"
FILL: CLAY, lean, very stiff, dark brown
CLAY, lean, very stiff, dark brown
CLAY, lean, stiff, brown, with black ferrous stains
SILT, loose, brown
Driller's Note: Converted to mud rotary drilling method at a depth of about 16-1/2 feet
CLAY, lean, firm to stiff, brown
NP
LOG OF BORING NO. DP-6
P L
A S
T
IC
IT
Y
IN
D
E X
SURFACE ELEVATION: 75.73 ft
U N
IT
D
R Y
W
IE
G H
T , p cf
Straight Flight Auger & Mud Rotary
DRILLING
METHOD: LOCATION:
PLASTIC
LIMIT
LIQUID
LIMIT
WATER
CONTENT
B L
O W
S P
E R
F T
10 20 30 40 50 60 70 80
DESCRIPTION OF MATERIAL
N 16552773.29700; E 1197944.97435
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0
SHEAR STRENGTH, TONS/FT2
N O
T E
: T H
E S
E L
O G
S S
H O
U
LD
N O
T B
E U
S E
D S
E P
A R
A T
E
LY
F R
O M
T H
E P
R O
JE
C
T R
E P
O R
T
DEPTH DRILLED:
DATE DRILLED:
DEPTH TO WATER:
DATE MEASURED:
S Y
M B
O L
S A
M P
L E
S
The Lower Rio Grande Flood Control Project Cameron County, Texas
11.5 ft 10/20/2008
D E
P T
H , F
T
50.0 ft 10/20/2008
PROJ. No.:
FIGURE:
AMA08-115-00
A-7a
TBPE Firm Registration No. F-3257
CLAY, lean, firm to stiff, brown (continued)
- becomes grayish-brown in color below a depth of about 40 feet
SAND, clayey, medium dense, brown
Boring terminated at a depth of about 50 feet.
NP
NOTES:
During the drilling operations, groundwater was observed at a depth of about 15 feet. Within 15 minutes of encountering groundwater, groundwater was measured at about 11.5 feet. Upon completion of the drilling operations, the boring caved-in to a depth of about 43.5 feet. Backfilled with cement/bentonite grout.
Elevation and coordinates provided by Client.
LOG OF BORING NO. DP-6
P L
A S
T
IC
IT
Y
IN
D
E X
SURFACE ELEVATION: 75.73 ft
U N
IT
D
R Y
W
IE
G H
T , p cf
Straight Flight Auger & Mud Rotary
DRILLING
METHOD: LOCATION:
PLASTIC
LIMIT
LIQUID
LIMIT
WATER
CONTENT
B L
O W
S P
E R
F T
10 20 30 40 50 60 70 80
DESCRIPTION OF MATERIAL
N 16552773.29700; E 1197944.97435
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0
SHEAR STRENGTH, TONS/FT2
N O
T E
: T H
E S
E L
O G
S S
H O
U
LD
N O
T B
E U
S E
D S
E P
A R
A T
E
LY
F R
O M
T H
E P
R O
JE
C
T R
E P
O R
T
DEPTH DRILLED:
DATE DRILLED:
DEPTH TO WATER:
DATE MEASURED:
S Y
M B
O L
S A
M P
L E
S
The Lower Rio Grande Flood Control Project Cameron County, Texas
11.5 ft 10/20/2008
D E
P T
H , F
T
50.0 ft 10/20/2008
PROJ. No.:
FIGURE:
AMA08-115-00
A-7b
TBPE Firm Registration No. F-3257
FILL: CLAY, lean, hard, brown
CLAY, fat, very stiff, brown, with black ferrous stains
CLAY, lean, firm to soft, brown
SILT, brown, wet
Driller's Note: Converted to mud rotary drilling method at a depth of about 16-1/2 feet
CLAY, fat, stiff, brown
SAND, silty, dense to medium dense, brown
LOG OF BORING NO. DP-7
P L
A S
T
IC
IT
Y
IN
D
E X
SURFACE ELEVATION: 75.64 ft
U N
IT
D
R Y
W
IE
G H
T , p cf
Straight Flight Auger & Mud Rotary
DRILLING
METHOD: LOCATION:
PLASTIC
LIMIT
LIQUID
LIMIT
WATER
CONTENT
B L
O W
S P
E R
F T
10 20 30 40 50 60 70 80
DESCRIPTION OF MATERIAL
N 16552219.76120; E 1198093.15164
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0
SHEAR STRENGTH, TONS/FT2
N O
T E
: T H
E S
E L
O G
S S
H O
U
LD
N O
T B
E U
S E
D S
E P
A R
A T
E
LY
F R
O M
T H
E P
R O
JE
C
T R
E P
O R
T
DEPTH DRILLED:
DATE DRILLED:
DEPTH TO WATER:
DATE MEASURED:
S Y
M B
O L
S A
M P
L E
S
The Lower Rio Grande Flood Control Project Cameron County, Texas
11.5 ft 10/20/2008
D E
P T
H , F
T
50.0 ft 10/20/2008
PROJ. No.:
FIGURE:
AMA08-115-00
A-8a
TBPE Firm Registration No. F-3257
1/18"
SAND, silty, dense to medium dense, brown
- dense below 48 feet
Boring terminated at a depth of about 50 feet.
NOTES:
During the drilling operations, groundwater was observed at a depth of about 13 feet. Within 15 minutes of encountering groundwater, groundwater was measured at about 11.5 feet. Upon completion of the drilling operations, the boring caved-in to a depth of about 45.5 feet. Backfilled with cement/bentonite grout.
Elevation and coordinates provided by Client.
LOG OF BORING NO. DP-7
P L
A S
T
IC
IT
Y
IN
D
E X
SURFACE ELEVATION: 75.64 ft
U N
IT
D
R Y
W
IE
G H
T , p cf
Straight Flight Auger & Mud Rotary
DRILLING
METHOD: LOCATION:
PLASTIC
LIMIT
LIQUID
LIMIT
WATER
CONTENT
B L
O W
S P
E R
F T
10 20 30 40 50 60 70 80
DESCRIPTION OF MATERIAL
N 16552219.76120; E 1198093.15164
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0
SHEAR STRENGTH, TONS/FT2
N O
T E
: T H
E S
E L
O G
S S
H O
U
LD
N O
T B
E U
S E
D S
E P
A R
A T
E
LY
F R
O M
T H
E P
R O
JE
C
T R
E P
O R
T
DEPTH DRILLED:
DATE DRILLED:
DEPTH TO WATER:
DATE MEASURED:
S Y
M B
O L
S A
M P
L E
S
The Lower Rio Grande Flood Control Project Cameron County, Texas
11.5 ft 10/20/2008
D E
P T
H , F
T
50.0 ft 10/20/2008
PROJ. No.:
FIGURE:
AMA08-115-00
A-8b
TBPE Firm Registration No. F-3257
FILL: CLAY, lean, very stiff, brown
CLAY, lean, very stiff to stiff, light brown to brown, with black ferrous stains
- firm 8 to 10 feet
CLAY, fat, firm, brown, with orange ferrous stains
SAND, clayey, loose, brown
Driller's Note: Converted to mud rotary drilling method at a depth of about 16-1/2 feet
SAND, silty, medium dense, brown
NP
LOG OF BORING NO. DP-8
P L
A S
T
IC
IT
Y
IN
D
E X
SURFACE ELEVATION: 75.67 ft
U N
IT
D
R Y
W
IE
G H
T , p cf
Straight Flight Auger & Mud Rotary
DRILLING
METHOD: LOCATION:
PLASTIC
LIMIT
LIQUID
LIMIT
WATER
CONTENT
B L
O W
S P
E R
F T
10 20 30 40 50 60 70 80
DESCRIPTION OF MATERIAL
N 16551822.17340; E 1198198.58958
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0
SHEAR STRENGTH, TONS/FT2
N O
T E
: T H
E S
E L
O G
S S
H O
U
LD
N O
T B
E U
S E
D S
E P
A R
A T
E
LY
F R
O M
T H
E P
R O
JE
C
T R
E P
O R
T
DEPTH DRILLED:
DATE DRILLED:
DEPTH TO WATER:
DATE MEASURED:
S Y
M B
O L
S A
M P
L E
S
The Lower Rio Grande Flood Control Project Cameron County, Texas
13.5 ft 10/20/2008
D E
P T
H , F
T
50.0 ft 10/20/2008
PROJ. No.:
FIGURE:
AMA08-115-00
A-9a
TBPE Firm Registration No. F-3257
- with clay lenses below a depth of about 40 feet
Boring terminated at a depth of about 50 feet.
NP
NOTES:
During the drilling operations, groundwater was observed at a depth of about 13 feet. Within 15 minutes of encountering groundwater, groundwater was measured at about 13.5 feet. Upon completion of the drilling operations, the boring caved-in to a depth of about 46.5 feet. Backfilled with cement/bentonite grout.
Elevation and coordinates provided by Client.
LOG OF BORING NO. DP-8
P L
A S
T
IC
IT
Y
IN
D
E X
SURFACE ELEVATION: 75.67 ft
U N
IT
D
R Y
W
IE
G H
T , p cf
Straight Flight Auger & Mud Rotary
DRILLING
METHOD: LOCATION:
PLASTIC
LIMIT
LIQUID
LIMIT
WATER
CONTENT
B L
O W
S P
E R
F T
10 20 30 40 50 60 70 80
DESCRIPTION OF MATERIAL
N 16551822.17340; E 1198198.58958
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0
SHEAR STRENGTH, TONS/FT2
N O
T E
: T H
E S
E L
O G
S S
H O
U
LD
N O
T B
E U
S E
D S
E P
A R
A T
E
LY
F R
O M
T H
E P
R O
JE
C
T R
E P
O R
T
DEPTH DRILLED:
DATE DRILLED:
DEPTH TO WATER:
DATE MEASURED:
S Y
M B
O L
S A
M P
L E
S
The Lower Rio Grande Flood Control Project Cameron County, Texas
13.5 ft 10/20/2008
D E
P T
H , F
T
50.0 ft 10/20/2008
PROJ. No.:
FIGURE:
AMA08-115-00
A-9b
TBPE Firm Registration No. F-3257
FILL: CLAY, lean, stiff, dark brown to brown
CLAY, fat, stiff to firm, brown, with black ferrous stains
- with orange ferrous stains below a depth of about 15 feet
Driller's Note: Converted to mud rotary drilling method at a depth of about 16-1/2 feet
SAND, silty, medium dense, brown
LOG OF BORING NO. DP-9
P L
A S
T
IC
IT
Y
IN
D
E X
SURFACE ELEVATION: 75.16 ft
U N
IT
D
R Y
W
IE
G H
T , p cf
Straight Flight Auger & Mud Rotary
DRILLING
METHOD: LOCATION:
PLASTIC
LIMIT
LIQUID
LIMIT
WATER
CONTENT
B L
O W
S P
E R
F T
10 20 30 40 50 60 70 80
DESCRIPTION OF MATERIAL
N 16551323.11190; E 1198314.37160
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0
SHEAR STRENGTH, TONS/FT2
N O
T E
: T H
E S
E L
O G
S S
H O
U
LD
N O
T B
E U
S E
D S
E P
A R
A T
E
LY
F R
O M
T H
E P
R O
JE
C
T R
E P
O R
T
DEPTH DRILLED:
DATE DRILLED:
DEPTH TO WATER:
DATE MEASURED:
S Y
M B
O L
S A
M P
L E
S
The Lower Rio Grande Flood Control Project Cameron County, Texas
12 ft 10/20/2008
D E
P T
H , F
T
50.0 ft 10/20/2008
PROJ. No.:
FIGURE:
AMA08-115-00
A-10a
TBPE Firm Registration No. F-3257
SAND, with silt, poorly-graded, dense, brown
CLAY, fat, stiff, brown to reddish-brown
Boring terminated at a depth of about 50 feet.
NOTES:
During the drilling operations, groundwater was observed at a depth of about 15 feet. Within 15 minutes of encountering groundwater, groundwater was measured at about 12 feet.
Upon completion of the drilling operations, the boring caved-in to a depth of about 45 feet.
Backfilled with cement/bentonite grout.
Elevation and coordinates provided by Client.
LOG OF BORING NO. DP-9
P L
A S
T
IC
IT
Y
IN
D
E X
SURFACE ELEVATION: 75.16 ft
U N
IT
D
R Y
W
IE
G H
T , p cf
Straight Flight Auger & Mud Rotary
DRILLING
METHOD: LOCATION:
PLASTIC
LIMIT
LIQUID
LIMIT
WATER
CONTENT
B L
O W
S P
E R
F T
10 20 30 40 50 60 70 80
DESCRIPTION OF MATERIAL
N 16551323.11190; E 1198314.37160
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0
SHEAR STRENGTH, TONS/FT2
N O
T E
: T H
E S
E L
O G
S S
H O
U
LD
N O
T B
E U
S E
D S
E P
A R
A T
E
LY
F R
O M
T H
E P
R O
JE
C
T R
E P
O R
T
DEPTH DRILLED:
DATE DRILLED:
DEPTH TO WATER:
DATE MEASURED:
S Y
M B
O L
S A
M P
L E
S
The Lower Rio Grande Flood Control Project Cameron County, Texas
12 ft 10/20/2008
D E
P T
H , F
T
50.0 ft 10/20/2008
PROJ. No.:
FIGURE:
AMA08-115-00
A-10b
TBPE Firm Registration No. F-3257
FILL: CLAY, fat, stiff, brown
CLAY, fat, stiff to firm, brown
SILT, brown
CLAY, fat, soft to stiff, brown
- with orange ferrous stains below a depth of about 15 feet
Driller's Note: Converted to mud rotary drilling method at a depth of about 21-1/2 feet
CLAY, lean, stiff, brown to grayish-brown, with orange ferrous stains
CLAY, sandy, lean, stiff, dark brown
LOG OF BORING NO. DP-10
P L
A S
T
IC
IT
Y
IN
D
E X
SURFACE ELEVATION: 73.63 ft
U N
IT
D
R Y
W
IE
G H
T , p cf
Straight Flight Auger & Mud Rotary
DRILLING
METHOD: LOCATION:
PLASTIC
LIMIT
LIQUID
LIMIT
WATER
CONTENT
B L
O W
S P
E R
F T
10 20 30 40 50 60 70 80
DESCRIPTION OF MATERIAL
N 16550770.19860; E 1198325.74017
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0
SHEAR STRENGTH, TONS/FT2
N O
T E
: T H
E S
E L
O G
S S
H O
U
LD
N O
T B
E U
S E
D S
E P
A R
A T
E
LY
F R
O M
T H
E P
R O
JE
C
T R
E P
O R
T
DEPTH DRILLED:
DATE DRILLED:
DEPTH TO WATER:
DATE MEASURED:
S Y
M B
O L
S A
M P
L E
S
The Lower Rio Grande Flood Control Project Cameron County, Texas
12 ft 10/21/2008
D E
P T
H , F
T
50.0 ft 10/21/2008
PROJ. No.:
FIGURE:
AMA08-115-00
A-11a
TBPE Firm Registration No. F-3257
SAND, silty, medium dense, dark brown
CLAY, fat, very stiff, brown
Boring terminated at a depth of about 50 feet.
NOTES:
During the drilling operations, groundwater was observed at a depth of about 20 feet. Within 15 minutes of encountering groundwater, groundwater was measured at about 12 feet.
Upon completion of the drilling operations, the boring remained uncaved.
Backfilled with cement/bentonite grout.
Elevation and coordinates provided by Client.
LOG OF BORING NO. DP-10
P L
A S
T
IC
IT
Y
IN
D
E X
SURFACE ELEVATION: 73.63 ft
U N
IT
D
R Y
W
IE
G H
T , p cf
Straight Flight Auger & Mud Rotary
DRILLING
METHOD: LOCATION:
PLASTIC
LIMIT
LIQUID
LIMIT
WATER
CONTENT
B L
O W
S P
E R
F T
10 20 30 40 50 60 70 80
DESCRIPTION OF MATERIAL
N 16550770.19860; E 1198325.74017
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0
SHEAR STRENGTH, TONS/FT2
N O
T E
: T H
E S
E L
O G
S S
H O
U
LD
N O
T B
E U
S E
D S
E P
A R
A T
E
LY
F R
O M
T H
E P
R O
JE
C
T R
E P
O R
T
DEPTH DRILLED:
DATE DRILLED:
DEPTH TO WATER:
DATE MEASURED:
S Y
M B
O L
S A
M P
L E
S
The Lower Rio Grande Flood Control Project Cameron County, Texas
12 ft 10/21/2008
D E
P T
H , F
T
50.0 ft 10/21/2008
PROJ. No.:
FIGURE:
AMA08-115-00
A-11b
TBPE Firm Registration No. F-3257
FILL: CLAY, lean, very stiff, brown
CLAY, lean, with sand, firm, brown
- stiff from 6 to 8 feet
CLAY, fat, firm to stiff, brown to grayish-brown, with calcareous nodules
Driller's Note: Converted to mud rotary drilling method at a depth of about 21-1/2 feet
SAND, with silt, poorly-graded, medium dense, dark brown
NP
LOG OF BORING NO. DP-11
P L
A S
T
IC
IT
Y
IN
D
E X
SURFACE ELEVATION: 74.21 ft
U N
IT
D
R Y
W
IE
G H
T , p cf
Straight Flight Auger & Mud Rotary
DRILLING
METHOD: LOCATION:
PLASTIC
LIMIT
LIQUID
LIMIT
WATER
CONTENT
B L
O W
S P
E R
F T
10 20 30 40 50 60 70 80
DESCRIPTION OF MATERIAL
N 16549860.84680; E 1197796.74384
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0
SHEAR STRENGTH, TONS/FT2
N O
T E
: T H
E S
E L
O G
S S
H O
U
LD
N O
T B
E U
S E
D S
E P
A R
A T
E
LY
F R
O M
T H
E P
R O
JE
C
T R
E P
O R
T
DEPTH DRILLED:
DATE DRILLED:
DEPTH TO WATER:
DATE MEASURED:
S Y
M B
O L
S A
M P
L E
S
The Lower Rio Grande Flood Control Project Cameron County, Texas
15 ft 10/21/2008
D E
P T
H , F
T
50.0 ft 10/21/2008
PROJ. No.:
FIGURE:
AMA08-115-00
A-12a
TBPE Firm Registration No. F-3257
SAND, poorly graded, medium dense, dark brown
Boring terminated at a depth of about 50 feet.
NOTES:
During the drilling operations, groundwater was observed at a depth of about 20 feet. Within 15 minutes of encountering groundwater, groundwater was measured at about 15 feet.
Upon completion of the drilling operations, the boring remained uncaved.
Backfilled with cement/bentonite grout.
Elevation and coordinates provided by Client.
LOG OF BORING NO. DP-11
P L
A S
T
IC
IT
Y
IN
D
E X
SURFACE ELEVATION: 74.21 ft
U N
IT
D
R Y
W
IE
G H
T , p cf
Straight Flight Auger & Mud Rotary
DRILLING
METHOD: LOCATION:
PLASTIC
LIMIT
LIQUID
LIMIT
WATER
CONTENT
B L
O W
S P
E R
F T
10 20 30 40 50 60 70 80
DESCRIPTION OF MATERIAL
N 16549860.84680; E 1197796.74384
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0
SHEAR STRENGTH, TONS/FT2
N O
T E
: T H
E S
E L
O G
S S
H O
U
LD
N O
T B
E U
S E
D S
E P
A R
A T
E
LY
F R
O M
T H
E P
R O
JE
C
T R
E P
O R
T
DEPTH DRILLED:
DATE DRILLED:
DEPTH TO WATER:
DATE MEASURED:
S Y
M B
O L
S A
M P
L E
S
The Lower Rio Grande Flood Control Project Cameron County, Texas
15 ft 10/21/2008
D E
P T
H , F
T
50.0 ft 10/21/2008
PROJ. No.:
FIGURE:
AMA08-115-00
A-12b
TBPE Firm Registration No. F-3257
FILL: CLAY, fat, very stiff, dark brown
CLAY, lean, soft to firm, brown
CLAY, sandy, lean, soft, brown, wet
Driller's Note: Converted to mud rotary drilling method at a depth of about 21-1/2 feet
- stiff below 25 feet
SAND, poorly-graded, medium dense, dark brown
SAND, silty, medium dense, dark brown
LOG OF BORING NO. DP-12
P L
A S
T
IC
IT
Y
IN
D
E X
SURFACE ELEVATION: 74.61 ft
U N
IT
D
R Y
W
IE
G H
T , p cf
Straight Flight Auger & Mud Rotary
DRILLING
METHOD: LOCATION:
PLASTIC
LIMIT
LIQUID
LIMIT
WATER
CONTENT
B L
O W
S P
E R
F T
10 20 30 40 50 60 70 80
DESCRIPTION OF MATERIAL
N 16549073.12270; E 1197293.77136
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0
SHEAR STRENGTH, TONS/FT2
N O
T E
: T H
E S
E L
O G
S S
H O
U
LD
N O
T B
E U
S E
D S
E P
A R
A T
E
LY
F R
O M
T H
E P
R O
JE
C
T R
E P
O R
T
DEPTH DRILLED:
DATE DRILLED:
DEPTH TO WATER:
DATE MEASURED:
S Y
M B
O L
S A
M P
L E
S
The Lower Rio Grande Flood Control Project Cameron County, Texas
13 ft 10/22/2008
D E
P T
H , F
T
50.0 ft 10/22/2008
PROJ. No.:
FIGURE:
AMA08-115-00
A-13a
TBPE Firm Registration No. F-3257
CLAY, fat, stiff, grayish-brown to brown
Boring terminated at a depth of about 50 feet.
NOTES:
During the drilling operations, groundwater was observed at a depth of about 18 feet. Within 15 minutes of encountering groundwater, groundwater was measured at about 13 feet.
Upon completion of the drilling operations, the boring caved-in to a depth of about 45 feet.
Backfilled with cement/bentonite grout.
Elevation and coordinates provided by Client.
LOG OF BORING NO. DP-12
P L
A S
T
IC
IT
Y
IN
D
E X
SURFACE ELEVATION: 74.61 ft
U N
IT
D
R Y
W
IE
G H
T , p cf
Straight Flight Auger & Mud Rotary
DRILLING
METHOD: LOCATION:
PLASTIC
LIMIT
LIQUID
LIMIT
WATER
CONTENT
B L
O W
S P
E R
F T
10 20 30 40 50 60 70 80
DESCRIPTION OF MATERIAL
N 16549073.12270; E 1197293.77136
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0
SHEAR STRENGTH, TONS/FT2
N O
T E
: T H
E S
E L
O G
S S
H O
U
LD
N O
T B
E U
S E
D S
E P
A R
A T
E
LY
F R
O M
T H
E P
R O
JE
C
T R
E P
O R
T
DEPTH DRILLED:
DATE DRILLED:
DEPTH TO WATER:
DATE MEASURED:
S Y
M B
O L
S A
M P
L E
S
The Lower Rio Grande Flood Control Project Cameron County, Texas
13 ft 10/22/2008
D E
P T
H , F
T
50.0 ft 10/22/2008
PROJ. No.:
FIGURE:
AMA08-115-00
A-13b
TBPE Firm Registration No. F-3257
FILL: CLAY, lean, hard, brown, with calcareous nodules
- stiff below 2 feet
CLAY, lean, with sand, stiff, brown
SILT, with sand, brown
CLAY, lean, soft, brown
- with sand lenses below a depth of about 15 feet
Driller's Note: Converted to mud rotary drilling method at a depth of about 16-1/2 feet
SAND, silty, medium dense, brown
SAND, with silt, poorly-graded, dense to medium dense, brown
NP
NP
LOG OF BORING NO. DP-13
P L
A S
T
IC
IT
Y
IN
D
E X
SURFACE ELEVATION: 74.60 ft
U N
IT
D
R Y
W
IE
G H
T , p cf
Straight Flight Auger & Mud Rotary
DRILLING
METHOD: LOCATION:
PLASTIC
LIMIT
LIQUID
LIMIT
WATER
CONTENT
B L
O W
S P
E R
F T
10 20 30 40 50 60 70 80
DESCRIPTION OF MATERIAL
N 16548096.45130; E 1196820.07241
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0
SHEAR STRENGTH, TONS/FT2
N O
T E
: T H
E S
E L
O G
S S
H O
U
LD
N O
T B
E U
S E
D S
E P
A R
A T
E
LY
F R
O M
T H
E P
R O
JE
C
T R
E P
O R
T
DEPTH DRILLED:
DATE DRILLED:
DEPTH TO WATER:
DATE MEASURED:
S Y
M B
O L
S A
M P
L E
S
The Lower Rio Grande Flood Control Project Cameron County, Texas
13.5 ft 10/21/2008
D E
P T
H , F
T
50.0 ft 10/21/2008
PROJ. No.:
FIGURE:
AMA08-115-00
A-14a
TBPE Firm Registration No. F-3257
SAND, with silt, poorly-graded, dense to medium dense, brown (continued)
CLAY, fat, very stiff, brown
Boring terminated at a depth of about 50 feet.
NOTES:
During the drilling operations, groundwater was observed at a depth of about 12 feet. Within 15 minutes of encountering groundwater, groundwater was measured at about 13.5 feet. Upon completion of the drilling operations, the boring caved-in to a depth of about 45 feet. Backfilled with cement/bentonite grout.
Elevation and coordinates provided by Client.
LOG OF BORING NO. DP-13
P L
A S
T
IC
IT
Y
IN
D
E X
SURFACE ELEVATION: 74.60 ft
U N
IT
D
R Y
W
IE
G H
T , p cf
Straight Flight Auger & Mud Rotary
DRILLING
METHOD: LOCATION:
PLASTIC
LIMIT
LIQUID
LIMIT
WATER
CONTENT
B L
O W
S P
E R
F T
10 20 30 40 50 60 70 80
DESCRIPTION OF MATERIAL
N 16548096.45130; E 1196820.07241
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0
SHEAR STRENGTH, TONS/FT2
N O
T E
: T H
E S
E L
O G
S S
H O
U
LD
N O
T B
E U
S E
D S
E P
A R
A T
E
LY
F R
O M
T H
E P
R O
JE
C
T R
E P
O R
T
DEPTH DRILLED:
DATE DRILLED:
DEPTH TO WATER:
DATE MEASURED:
S Y
M B
O L
S A
M P
L E
S
The Lower Rio Grande Flood Control Project Cameron County, Texas
13.5 ft 10/21/2008
D E
P T
H , F
T
50.0 ft 10/21/2008
PROJ. No.:
FIGURE:
AMA08-115-00
A-14b
TBPE Firm Registration No. F-3257
FILL: CLAY, lean, very stiff, brown, with gypsum nodules
FILL: CLAY, lean, with sand, soft, brown
CLAY, lean, firm to soft, brown
Driller's Note: Converted to mud rotary drilling method at a depth of about 16-1/2 feet
CLAY, fat, stiff, dark brown
SAND, silty, medium dense, dark brown
SAND, with silt, poorly-graded, medium dense, dark brown
LOG OF BORING NO. DP-14
P L
A S
T
IC
IT
Y
IN
D
E X
SURFACE ELEVATION: 74.65 ft
U N
IT
D
R Y
W
IE
G H
T , p cf
Straight Flight Auger & Mud Rotary
DRILLING
METHOD: LOCATION:
PLASTIC
LIMIT
LIQUID
LIMIT
WATER
CONTENT
B L
O W
S P
E R
F T
10 20 30 40 50 60 70 80
DESCRIPTION OF MATERIAL
N 16547082.52270; E 1196463.46758
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0
SHEAR STRENGTH, TONS/FT2
N O
T E
: T H
E S
E L
O G
S S
H O
U
LD
N O
T B
E U
S E
D S
E P
A R
A T
E
LY
F R
O M
T H
E P
R O
JE
C
T R
E P
O R
T
DEPTH DRILLED:
DATE DRILLED:
DEPTH TO WATER:
DATE MEASURED:
S Y
M B
O L
S A
M P
L E
S
The Lower Rio Grande Flood Control Project Cameron County, Texas
12.5 ft 10/21/2008
D E
P T
H , F
T
50.0 ft 10/21/2008
PROJ. No.:
FIGURE:
AMA08-115-00
A-15a
TBPE Firm Registration No. F-3257
SAND, with silt, poorly-graded, medium dense, dark brown (continued)
CLAY, lean, stiff, light brown
Boring terminated at a depth of about 50 feet.
NOTES:
During the drilling operations, groundwater was observed at a depth of about 15 feet. Within 15 minutes of encountering groundwater, groundwater was measured at about 12.5 feet. Upon completion of the drilling operations, the boring caved-in to a depth of about 42.5 feet. Backfilled with cement/bentonite grout.
Elevation and coordinates provided by Client.
LOG OF BORING NO. DP-14
P L
A S
T
IC
IT
Y
IN
D
E X
SURFACE ELEVATION: 74.65 ft
U N
IT
D
R Y
W
IE
G H
T , p cf
Straight Flight Auger & Mud Rotary
DRILLING
METHOD: LOCATION:
PLASTIC
LIMIT
LIQUID
LIMIT
WATER
CONTENT
B L
O W
S P
E R
F T
10 20 30 40 50 60 70 80
DESCRIPTION OF MATERIAL
N 16547082.52270; E 1196463.46758
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0
SHEAR STRENGTH, TONS/FT2
N O
T E
: T H
E S
E L
O G
S S
H O
U
LD
N O
T B
E U
S E
D S
E P
A R
A T
E
LY
F R
O M
T H
E P
R O
JE
C
T R
E P
O R
T
DEPTH DRILLED:
DATE DRILLED:
DEPTH TO WATER:
DATE MEASURED:
S Y
M B
O L
S A
M P
L E
S
The Lower Rio Grande Flood Control Project Cameron County, Texas
12.5 ft 10/21/2008
D E
P T
H , F
T
50.0 ft 10/21/2008
PROJ. No.:
FIGURE:
AMA08-115-00
A-15b
TBPE Firm Registration No. F-3257
FILL: CLAY, lean, with sand, very stiff, brown
FILL: CLAY, sandy, lean, firm, brown
CLAY, lean, firm, brown
CLAY, fat, firm, brown
- with black ferrous stains below a depth of about 15 feet
CLAY, sandy, lean, very soft, brown
Driller's Note: Converted to mud rotary drilling method at a depth of about 21-1/2 feet
CLAY, lean, with sand, firm, brown
SAND, silty, medium dense to dense, brown to dark brown
LOG OF BORING NO. DP-15
P L
A S
T
IC
IT
Y
IN
D
E X
SURFACE ELEVATION: 74.25 ft
U N
IT
D
R Y
W
IE
G H
T , p cf
Straight Flight Auger & Mud Rotary
DRILLING
METHOD: LOCATION:
PLASTIC
LIMIT
LIQUID
LIMIT
WATER
CONTENT
B L
O W
S P
E R
F T
10 20 30 40 50 60 70 80
DESCRIPTION OF MATERIAL
N 16546302.78230; E 1196969.10129
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0
SHEAR STRENGTH, TONS/FT2
N O
T E
: T H
E S
E L
O G
S S
H O
U
LD
N O
T B
E U
S E
D S
E P
A R
A T
E
LY
F R
O M
T H
E P
R O
JE
C
T R
E P
O R
T
DEPTH DRILLED:
DATE DRILLED:
DEPTH TO WATER:
DATE MEASURED:
S Y
M B
O L
S A
M P
L E
S
The Lower Rio Grande Flood Control Project Cameron County, Texas
14.5 ft 10/21/2008
D E
P T
H , F
T
50.0 ft 10/21/2008
PROJ. No.:
FIGURE:
AMA08-115-00
A-16a
TBPE Firm Registration No. F-3257
SAND, silty, medium dense to dense, brown to dark brown (continued)
Boring terminated at a depth of about 50 feet.
NOTES:
During the drilling operations, groundwater was observed at a depth of about 19 feet. Within 15 minutes of encountering groundwater, groundwater was measured at about 14.5 feet. Upon completion of the drilling operations, the boring caved-in to a depth of about 44.5 feet. Backfilled with cement/bentonite grout.
Elevation and coordinates provided by Client.
LOG OF BORING NO. DP-15
P L
A S
T
IC
IT
Y
IN
D
E X
SURFACE ELEVATION: 74.25 ft
U N
IT
D
R Y
W
IE
G H
T , p cf
Straight Flight Auger & Mud Rotary
DRILLING
METHOD: LOCATION:
PLASTIC
LIMIT
LIQUID
LIMIT
WATER
CONTENT
B L
O W
S P
E R
F T
10 20 30 40 50 60 70 80
DESCRIPTION OF MATERIAL
N 16546302.78230; E 1196969.10129
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0
SHEAR STRENGTH, TONS/FT2
N O
T E
: T H
E S
E L
O G
S S
H O
U
LD
N O
T B
E U
S E
D S
E P
A R
A T
E
LY
F R
O M
T H
E P
R O
JE
C
T R
E P
O R
T
DEPTH DRILLED:
DATE DRILLED:
DEPTH TO WATER:
DATE MEASURED:
S Y
M B
O L
S A
M P
L E
S
The Lower Rio Grande Flood Control Project Cameron County, Texas
14.5 ft 10/21/2008
D E
P T
H , F
T
50.0 ft 10/21/2008
PROJ. No.:
FIGURE:
AMA08-115-00
A-16b
TBPE Firm Registration No. F-3257
FILL: CLAY, lean, very stiff, dark brown, with orange ferrous stains
SILT, with sand, brown
CLAY, fat, firm to stiff, brown, with orange ferrous stains
CLAY, lean, with sand, very soft, brown
- soft at 20 feet
Driller's Note: Converted to mud rotary drilling method at a depth of about 21-1/2 feet
SAND, with silt, poorly-graded, medium dense to loose, dark brown
LOG OF BORING NO. DP-16
P L
A S
T
IC
IT
Y
IN
D
E X
SURFACE ELEVATION: 75.22 ft
U N
IT
D
R Y
W
IE
G H
T , p cf
Straight Flight Auger & Mud Rotary
DRILLING
METHOD: LOCATION:
PLASTIC
LIMIT
LIQUID
LIMIT
WATER
CONTENT
B L
O W
S P
E R
F T
10 20 30 40 50 60 70 80
DESCRIPTION OF MATERIAL
N 16545972.78970; E 1197666.34357
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0
SHEAR STRENGTH, TONS/FT2
N O
T E
: T H
E S
E L
O G
S S
H O
U
LD
N O
T B
E U
S E
D S
E P
A R
A T
E
LY
F R
O M
T H
E P
R O
JE
C
T R
E P
O R
T
DEPTH DRILLED:
DATE DRILLED:
DEPTH TO WATER:
DATE MEASURED:
S Y
M B
O L
S A
M P
L E
S
The Lower Rio Grande Flood Control Project Cameron County, Texas
18 ft 10/22/2008
D E
P T
H , F
T
50.0 ft 10/22/2008
PROJ. No.:
FIGURE:
AMA08-115-00
A-17a
TBPE Firm Registration No. F-3257
SAND, with silt, poorly-graded, medium dense to loose, dark brown (continued)
CLAY, fat, firm, light brown
Boring terminated at a depth of about 50 feet.
NOTES:
During the drilling operations, groundwater was observed at a depth of about 20 feet. Within 15 minutes of encountering groundwater, groundwater was measured at about 18 feet.
Upon completion of the drilling operations, the boring caved-in to a depth of about 37 feet.
Backfilled with cement/bentonite grout.
Elevation and coordinates provided by Client.
LOG OF BORING NO. DP-16
P L
A S
T
IC
IT
Y
IN
D
E X
SURFACE ELEVATION: 75.22 ft
U N
IT
D
R Y
W
IE
G H
T , p cf
Straight Flight Auger & Mud Rotary
DRILLING
METHOD: LOCATION:
PLASTIC
LIMIT
LIQUID
LIMIT
WATER
CONTENT
B L
O W
S P
E R
F T
10 20 30 40 50 60 70 80
DESCRIPTION OF MATERIAL
N 16545972.78970; E 1197666.34357
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0
SHEAR STRENGTH, TONS/FT2
N O
T E
: T H
E S
E L
O G
S S
H O
U
LD
N O
T B
E U
S E
D S
E P
A R
A T
E
LY
F R
O M
T H
E P
R O
JE
C
T R
E P
O R
T
DEPTH DRILLED:
DATE DRILLED:
DEPTH TO WATER:
DATE MEASURED:
S Y
M B
O L
S A
M P
L E
S
The Lower Rio Grande Flood Control Project Cameron County, Texas
18 ft 10/22/2008
D E
P T
H , F
T
50.0 ft 10/22/2008
PROJ. No.:
FIGURE:
AMA08-115-00
A-17b
TBPE Firm Registration No. F-3257
FILL: CLAY, fat, very stiff, brown, with black ferrrous stains
CLAY, lean, very stiff, brown
CLAY, fat, very stiff to hard, brown
SAND, with silt, poorly-graded, very loose, brown
Driller's Note: Converted to mud rotary drilling method at a depth of about 21-1/2 feet
SAND, with silt, poorly-graded, very dense, dark brown
NP
LOG OF BORING NO. DP-17
P L
A S
T
IC
IT
Y
IN
D
E X
SURFACE ELEVATION: 74.35 ft
U N
IT
D
R Y
W
IE
G H
T , p cf
Straight Flight Auger & Mud Rotary
DRILLING
METHOD: LOCATION:
PLASTIC
LIMIT
LIQUID
LIMIT
WATER
CONTENT
B L
O W
S P
E R
F T
10 20 30 40 50 60 70 80
DESCRIPTION OF MATERIAL
N 16545869.00180; E 1198768.09281
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0
SHEAR STRENGTH, TONS/FT2
N O
T E
: T H
E S
E L
O G
S S
H O
U
LD
N O
T B
E U
S E
D S
E P
A R
A T
E
LY
F R
O M
T H
E P
R O
JE
C
T R
E P
O R
T
DEPTH DRILLED:
DATE DRILLED:
DEPTH TO WATER:
DATE MEASURED:
S Y
M B
O L
S A
M P
L E
S
The Lower Rio Grande Flood Control Project Cameron County, Texas
18 ft 10/22/2008
D E
P T
H , F
T
50.0 ft 10/22/2008
PROJ. No.:
FIGURE:
AMA08-115-00
A-18a
TBPE Firm Registration No. F-3257
50/
SAND, silty, poorly graded, medium dense, dark
CLAY, lean, stiff, light brown, with black ferrous stains
Boring terminated at a depth of about 50 feet.
NOTES:
During the drilling operations, groundwater was observed at a depth of about 21 feet. Within 15 minutes of encountering groundwater, groundwater was measured at about 18 feet.
Upon completion of the drilling operations, the boring caved-in to a depth of about 49.5 feet.
Backfilled with cement/bentonite grout.
Elevation and coordinates provided by Client.
LOG OF BORING NO. DP-17
P L
A S
T
IC
IT
Y
IN
D
E X
SURFACE ELEVATION: 74.35 ft
U N
IT
D
R Y
W
IE
G H
T , p cf
Straight Flight Auger & Mud Rotary
DRILLING
METHOD: LOCATION:
PLASTIC
LIMIT
LIQUID
LIMIT
WATER
CONTENT
B L
O W
S P
E R
F T
10 20 30 40 50 60 70 80
DESCRIPTION OF MATERIAL
N 16545869.00180; E 1198768.09281
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0
SHEAR STRENGTH, TONS/FT2
N O
T E
: T H
E S
E L
O G
S S
H O
U
LD
N O
T B
E U
S E
D S
E P
A R
A T
E
LY
F R
O M
T H
E P
R O
JE
C
T R
E P
O R
T
DEPTH DRILLED:
DATE DRILLED:
DEPTH TO WATER:
DATE MEASURED:
S Y
M B
O L
S A
M P
L E
S
The Lower Rio Grande Flood Control Project Cameron County, Texas
18 ft 10/22/2008
D E
P T
H , F
T
50.0 ft 10/22/2008
PROJ. No.:
FIGURE:
AMA08-115-00
A-18b
TBPE Firm Registration No. F-3257
FILL: CLAY, lean, hard, brown
CLAY, fat, very stiff, brown, with orange ferrous stains
CLAY, lean, very stiff, brown
CLAY, fat, very stiff, brown, with black ferrous stains
SAND, clayey, loose, brown, wet
Driller's Note: Converted to mud rotary drilling method at a depth of about 21-1/2 feet
CLAY, sandy, lean, stiff, brown to reddish-brown
SAND, silty, medium dense to dense, brown
LOG OF BORING NO. DP-18
P L
A S
T
IC
IT
Y
IN
D
E X
SURFACE ELEVATION: 74.29 ft
U N
IT
D
R Y
W
IE
G H
T , p cf
Straight Flight Auger & Mud Rotary
DRILLING
METHOD: LOCATION:
PLASTIC
LIMIT
LIQUID
LIMIT
WATER
CONTENT
B L
O W
S P
E R
F T
10 20 30 40 50 60 70 80
DESCRIPTION OF MATERIAL
N 16545805.13220; E 1199790.00515
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0
SHEAR STRENGTH, TONS/FT2
N O
T E
: T H
E S
E L
O G
S S
H O
U
LD
N O
T B
E U
S E
D S
E P
A R
A T
E
LY
F R
O M
T H
E P
R O
JE
C
T R
E P
O R
T
DEPTH DRILLED:
DATE DRILLED:
DEPTH TO WATER:
DATE MEASURED:
S Y
M B
O L
S A
M P
L E
S
The Lower Rio Grande Flood Control Project Cameron County, Texas
18 ft 10/22/2008
D E
P T
H , F
T
50.0 ft 10/22/2008
PROJ. No.:
FIGURE:
AMA08-115-00
A-19a
TBPE Firm Registration No. F-3257
SAND, silty, medium dense to dense, brown
- medium dense below 48 feet
Boring terminated at a depth of about 50 feet.
NP
NOTES:
During the drilling operations, groundwater was observed at a depth of about 18.5 feet.
Within 15 minutes of encountering groundwater, groundwater was measured at about 18 feet. Upon completion of the drilling operations, the boring caved-in to a depth of about 49.5 feet. Backfilled with cement/bentonite grout.
Elevation and coordinates provided by Client.
LOG OF BORING NO. DP-18
P L
A S
T
IC
IT
Y
IN
D
E X
SURFACE ELEVATION: 74.29 ft
U N
IT
D
R Y
W
IE
G H
T , p cf
Straight Flight Auger & Mud Rotary
DRILLING
METHOD: LOCATION:
PLASTIC
LIMIT
LIQUID
LIMIT
WATER
CONTENT
B L
O W
S P
E R
F T
10 20 30 40 50 60 70 80
DESCRIPTION OF MATERIAL
N 16545805.13220; E 1199790.00515
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0
SHEAR STRENGTH, TONS/FT2
N O
T E
: T H
E S
E L
O G
S S
H O
U
LD
N O
T B
E U
S E
D S
E P
A R
A T
E
LY
F R
O M
T H
E P
R O
JE
C
T R
E P
O R
T
DEPTH DRILLED:
DATE DRILLED:
DEPTH TO WATER:
DATE MEASURED:
S Y
M B
O L
S A
M P
L E
S
The Lower Rio Grande Flood Control Project Cameron County, Texas
18 ft 10/22/2008
D E
P T
H , F
T
50.0 ft 10/22/2008
PROJ. No.:
FIGURE:
AMA08-115-00
A-19b
TBPE Firm Registration No. F-3257
FILL: CLAY, fat, very stiff, dark brown
CLAY, fat, very stiff, brown, with black ferrous stains
CLAY, sandy, lean, very stiff, brown
SAND, silty, loose to medium dense, brown
Driller's Note: Converted to mud rotary drilling method at a depth of about 21-1/2 feet
SAND, with silt, poorly-graded, medium dense, dark brown
NP
NP
LOG OF BORING NO. DP-19
P L
A S
T
IC
IT
Y
IN
D
E X
SURFACE ELEVATION: 74.05 ft
U N
IT
D
R Y
W
IE
G H
T , p cf
Straight Flight Auger & Mud Rotary
DRILLING
METHOD: LOCATION:
PLASTIC
LIMIT
LIQUID
LIMIT
WATER
CONTENT
B L
O W
S P
E R
F T
10 20 30 40 50 60 70 80
DESCRIPTION OF MATERIAL
N 16545991.41830; E 1200782.64396
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0
SHEAR STRENGTH, TONS/FT2
N O
T E
: T H
E S
E L
O G
S S
H O
U
LD
N O
T B
E U
S E
D S
E P
A R
A T
E
LY
F R
O M
T H
E P
R O
JE
C
T R
E P
O R
T
DEPTH DRILLED:
DATE DRILLED:
DEPTH TO WATER:
DATE MEASURED:
S Y
M B
O L
S A
M P
L E
S
The Lower Rio Grande Flood Control Project Cameron County, Texas
16 ft 10/22/2008
D E
P T
H , F
T
50.0 ft 10/22/2008
PROJ. No.:
FIGURE:
AMA08-115-00
A-20a
TBPE Firm Registration No. F-3257
Boring terminated at a depth of about 50 feet.
NOTES:
During the drilling operations, groundwater was observed at a depth of about 17 feet. Within 15 minutes of encountering groundwater, groundwater was measured at about 16 feet.
Upon completion of the drilling operations, the boring caved-in to a depth of about 47.5 feet.
Backfilled with cement/bentonite grout.
Elevation and coordinates provided by Client.
LOG OF BORING NO. DP-19
P L
A S
T
IC
IT
Y
IN
D
E X
SURFACE ELEVATION: 74.05 ft
U N
IT
D
R Y
W
IE
G H
T , p cf
Straight Flight Auger & Mud Rotary
DRILLING
METHOD: LOCATION:
PLASTIC
LIMIT
LIQUID
LIMIT
WATER
CONTENT
B L
O W
S P
E R
F T
10 20 30 40 50 60 70 80
DESCRIPTION OF MATERIAL
N 16545991.41830; E 1200782.64396
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0
SHEAR STRENGTH, TONS/FT2
N O
T E
: T H
E S
E L
O G
S S
H O
U
LD
N O
T B
E U
S E
D S
E P
A R
A T
E
LY
F R
O M
T H
E P
R O
JE
C
T R
E P
O R
T
DEPTH DRILLED:
DATE DRILLED:
DEPTH TO WATER:
DATE MEASURED:
S Y
M B
O L
S A
M P
L E
S
The Lower Rio Grande Flood Control Project Cameron County, Texas
16 ft 10/22/2008
D E
P T
H , F
T
50.0 ft 10/22/2008
PROJ. No.:
FIGURE:
AMA08-115-00
A-20b
TBPE Firm Registration No. F-3257
FILL: CLAY, lean, very stiff to stiff, brown
FILL: SILT, medium dense, brown
CLAY, lean, very stiff to stiff, brown, with orange ferrous stains
CLAY, lean, soft, brown, with orange ferrous stains
SAND, clayey, very loose, dark brown
Driller's Note: Converted to mud rotary drilling method at a depth of about 26-1/2 feet
SAND, silty, medium dense, dark brown
LOG OF BORING NO. DP-20
P L
A S
T
IC
IT
Y
IN
D
E X
SURFACE ELEVATION: 74.04 ft
U N
IT
D
R Y
W
IE
G H
T , p cf
Straight Flight Auger & Mud Rotary
DRILLING
METHOD: LOCATION:
PLASTIC
LIMIT
LIQUID
LIMIT
WATER
CONTENT
B L
O W
S P
E R
F T
10 20 30 40 50 60 70 80
DESCRIPTION OF MATERIAL
N 16545946.17740; E 1201748.67047
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0
SHEAR STRENGTH, TONS/FT2
N O
T E
: T H
E S
E L
O G
S S
H O
U
LD
N O
T B
E U
S E
D S
E P
A R
A T
E
LY
F R
O M
T H
E P
R O
JE
C
T R
E P
O R
T
DEPTH DRILLED:
DATE DRILLED:
DEPTH TO WATER:
DATE MEASURED:
S Y
M B
O L
S A
M P
L E
S
The Lower Rio Grande Flood Control Project Cameron County, Texas
19.5 ft 10/23/2008
D E
P T
H , F
T
50.0 ft 10/23/2008
PROJ. No.:
FIGURE:
AMA08-115-00
A-21a
TBPE Firm Registration No. F-3257
CLAY, fat, stiff, brown, with gray clay lenses
- becomes reddish-brown in color below a depth of about 45 feet
Boring terminated at a depth of about 50 feet.
NOTES:
During the drilling operations, groundwater was observed at a depth of about 23 feet. Within 15 minutes of encountering groundwater, groundwater was measured at about 19.5 feet. Upon completion of the drilling operations, the boring caved-in to a depth of about 45 feet. Backfilled with cement/bentonite grout.
Elevation and coordinates provided by Client.
LOG OF BORING NO. DP-20
P L
A S
T
IC
IT
Y
IN
D
E X
SURFACE ELEVATION: 74.04 ft
U N
IT
D
R Y
W
IE
G H
T , p cf
Straight Flight Auger & Mud Rotary
DRILLING
METHOD: LOCATION:
PLASTIC
LIMIT
LIQUID
LIMIT
WATER
CONTENT
B L
O W
S P
E R
F T
10 20 30 40 50 60 70 80
DESCRIPTION OF MATERIAL
N 16545946.17740; E 1201748.67047
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0
SHEAR STRENGTH, TONS/FT2
N O
T E
: T H
E S
E L
O G
S S
H O
U
LD
N O
T B
E U
S E
D S
E P
A R
A T
E
LY
F R
O M
T H
E P
R O
JE
C
T R
E P
O R
T
DEPTH DRILLED:
DATE DRILLED:
DEPTH TO WATER:
DATE MEASURED:
S Y
M B
O L
S A
M P
L E
S
The Lower Rio Grande Flood Control Project Cameron County, Texas
19.5 ft 10/23/2008
D E
P T
H , F
T
50.0 ft 10/23/2008
PROJ. No.:
FIGURE:
AMA08-115-00
A-21b
TBPE Firm Registration No. F-3257
FILL: CLAY, lean, stiff, brown, with gypsum nodules
CLAY, lean, stiff, brown, with gypsum nodules
SAND, clayey, very loose, dark brown
Driller's Note: Converted to mud rotary drilling method at a depth of about 21-1/2 feet
SAND, with silt, poorly-graded, medium dense, dark brown
SAND, silty, loose to dense, dark brown
LOG OF BORING NO. DP-21
P L
A S
T
IC
IT
Y
IN
D
E X
SURFACE ELEVATION: 74.07 ft
U N
IT
D
R Y
W
IE
G H
T , p cf
Straight Flight Auger & Mud Rotary
DRILLING
METHOD: LOCATION:
PLASTIC
LIMIT
LIQUID
LIMIT
WATER
CONTENT
B L
O W
S P
E R
F T
10 20 30 40 50 60 70 80
DESCRIPTION OF MATERIAL
N 16545858.35680; E 1202810.50126
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0
SHEAR STRENGTH, TONS/FT2
N O
T E
: T H
E S
E L
O G
S S
H O
U
LD
N O
T B
E U
S E
D S
E P
A R
A T
E
LY
F R
O M
T H
E P
R O
JE
C
T R
E P
O R
T
DEPTH DRILLED:
DATE DRILLED:
DEPTH TO WATER:
DATE MEASURED:
S Y
M B
O L
S A
M P
L E
S
The Lower Rio Grande Flood Control Project Cameron County, Texas
17 ft 10/23/2008
D E
P T
H , F
T
50.0 ft 10/23/2008
PROJ. No.:
FIGURE:
AMA08-115-00
A-22a
TBPE Firm Registration No. F-3257
SAND, silty, loose to dense, dark brown
CLAY, lean, stiff, brown to reddish-brown, with gypsum nodules
Boring terminated at a depth of about 50 feet.
NOTES:
During the drilling operations, groundwater was observed at a depth of about 21 feet. Within 15 minutes of encountering groundwater, groundwater was measured at about 17 feet.
Upon completion of the drilling operations, the boring caved-in to a depth of about 45 feet.
Backfilled with cement/bentonite grout.
Elevation and coordinates provided by Client.
LOG OF BORING NO. DP-21
P L
A S
T
IC
IT
Y
IN
D
E X
SURFACE ELEVATION: 74.07 ft
U N
IT
D
R Y
W
IE
G H
T , p cf
Straight Flight Auger & Mud Rotary
DRILLING
METHOD: LOCATION:
PLASTIC
LIMIT
LIQUID
LIMIT
WATER
CONTENT
B L
O W
S P
E R
F T
10 20 30 40 50 60 70 80
DESCRIPTION OF MATERIAL
N 16545858.35680; E 1202810.50126
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0
SHEAR STRENGTH, TONS/FT2
N O
T E
: T H
E S
E L
O G
S S
H O
U
LD
N O
T B
E U
S E
D S
E P
A R
A T
E
LY
F R
O M
T H
E P
R O
JE
C
T R
E P
O R
T
DEPTH DRILLED:
DATE DRILLED:
DEPTH TO WATER:
DATE MEASURED:
S Y
M B
O L
S A
M P
L E
S
The Lower Rio Grande Flood Control Project Cameron County, Texas
17 ft 10/23/2008
D E
P T
H , F
T
50.0 ft 10/23/2008
PROJ. No.:
FIGURE:
AMA08-115-00
A-22b
TBPE Firm Registration No. F-3257
FILL: SAND, clayey, brown, with calcareous nodules
FILL: CLAY, lean, hard to very stiff, brown
CLAY, lean, with sand, stiff to firm, brown
SAND, clayey, loose to medium dense, brown
Driller's Note: Converted to mud rotary drilling method at a depth of about 21-1/2 feet
SAND, with silt, poorly-graded, reddish-brown
LOG OF BORING NO. DP-22
P L
A S
T
IC
IT
Y
IN
D
E X
SURFACE ELEVATION: 73.09 ft
U N
IT
D
R Y
W
IE
G H
T , p cf
Straight Flight Auger & Mud Rotary
DRILLING
METHOD: LOCATION:
PLASTIC
LIMIT
LIQUID
LIMIT
WATER
CONTENT
B L
O W
S P
E R
F T
10 20 30 40 50 60 70 80
DESCRIPTION OF MATERIAL
N 16545762.55260; E 1203824.42992
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0
SHEAR STRENGTH, TONS/FT2
N O
T E
: T H
E S
E L
O G
S S
H O
U
LD
N O
T B
E U
S E
D S
E P
A R
A T
E
LY
F R
O M
T H
E P
R O
JE
C
T R
E P
O R
T
DEPTH DRILLED:
DATE DRILLED:
DEPTH TO WATER:
DATE MEASURED:
S Y
M B
O L
S A
M P
L E
S
The Lower Rio Grande Flood Control Project Cameron County, Texas
16.5 ft 10/23/2008
D E
P T
H , F
T
50.0 ft 10/23/2008
PROJ. No.:
FIGURE:
AMA08-115-00
A-23a
TBPE Firm Registration No. F-3257
CLAY, fat, very stiff to stiff, reddish-brown, with black ferrous stains
- becomes light brown in color below a depth of about 45 feet
Boring terminated at a depth of about 50 feet.
NOTES:
During the drilling operations, groundwater was observed at a depth of about 20 feet. Within 15 minutes of encountering groundwater, groundwater was measured at about 16.5 feet. Upon completion of the drilling operations, the boring caved-in to a depth of about 48.5 feet. Backfilled with cement/bentonite grout.
Elevation and coordinates provided by Client.
LOG OF BORING NO. DP-22
P L
A S
T
IC
IT
Y
IN
D
E X
SURFACE ELEVATION: 73.09 ft
U N
IT
D
R Y
W
IE
G H
T , p cf
Straight Flight Auger & Mud Rotary
DRILLING
METHOD: LOCATION:
PLASTIC
LIMIT
LIQUID
LIMIT
WATER
CONTENT
B L
O W
S P
E R
F T
10 20 30 40 50 60 70 80
DESCRIPTION OF MATERIAL
N 16545762.55260; E 1203824.42992
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0
SHEAR STRENGTH, TONS/FT2
N O
T E
: T H
E S
E L
O G
S S
H O
U
LD
N O
T B
E U
S E
D S
E P
A R
A T
E
LY
F R
O M
T H
E P
R O
JE
C
T R
E P
O R
T
DEPTH DRILLED:
DATE DRILLED:
DEPTH TO WATER:
DATE MEASURED:
S Y
M B
O L
S A
M P
L E
S
The Lower Rio Grande Flood Control Project Cameron County, Texas
16.5 ft 10/23/2008
D E
P T
H , F
T
50.0 ft 10/23/2008
PROJ. No.:
FIGURE:
AMA08-115-00
A-23b
TBPE Firm Registration No. F-3257
FILL: SAND, clayey, brown
FILL: CLAY, lean, very stiff, brown
CLAY, lean, very stiff, brown
CLAY, lean, soft, brown
SAND, clayey, very loose, brown
Driller's Note: Converted to mud rotary drilling method at a depth of about 21-1/2 feet
SAND, with silt, poorly-graded, medium dense, dark brown
SAND, clayey, medium dense, dark brown
SAND, with silt, poorly-graded, medium dense to dense, dark brown
NP
LOG OF BORING NO. DP-23
P L
A S
T
IC
IT
Y
IN
D
E X
SURFACE ELEVATION: 73.36 ft
U N
IT
D
R Y
W
IE
G H
T , p cf
Straight Flight Auger & Mud Rotary
DRILLING
METHOD: LOCATION:
PLASTIC
LIMIT
LIQUID
LIMIT
WATER
CONTENT
B L
O W
S P
E R
F T
10 20 30 40 50 60 70 80
DESCRIPTION OF MATERIAL
N 16546731.24030; E 1203965.47511
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0
SHEAR STRENGTH, TONS/FT2
N O
T E
: T H
E S
E L
O G
S S
H O
U
LD
N O
T B
E U
S E
D S
E P
A R
A T
E
LY
F R
O M
T H
E P
R O
JE
C
T R
E P
O R
T
DEPTH DRILLED:
DATE DRILLED:
DEPTH TO WATER:
DATE MEASURED:
S Y
M B
O L
S A
M P
L E
S
The Lower Rio Grande Flood Control Project Cameron County, Texas
17 ft 10/23/2008
D E
P T
H , F
T
50.0 ft 10/23/2008
PROJ. No.:
FIGURE:
AMA08-115-00
A-24a
TBPE Firm Registration No. F-3257
SAND, with silt, poorly-graded, medium dense to dense, dark brown (continued)
Boring terminated at a depth of about 50 feet.
NOTES:
During the drilling operations, groundwater was observed at a depth of about 20 feet. Within 15 minutes of encountering groundwater, groundwater was measured at about 17 feet.
Upon completion of the drilling operations, the boring caved-in to a depth of about 49 feet.
Backfilled with cement/bentonite grout.
Elevation and coordinates provided by Client.
LOG OF BORING NO. DP-23
P L
A S
T
IC
IT
Y
IN
D
E X
SURFACE ELEVATION: 73.36 ft
U N
IT
D
R Y
W
IE
G H
T , p cf
Straight Flight Auger & Mud Rotary
DRILLING
METHOD: LOCATION:
PLASTIC
LIMIT
LIQUID
LIMIT
WATER
CONTENT
B L
O W
S P
E R
F T
10 20 30 40 50 60 70 80
DESCRIPTION OF MATERIAL
N 16546731.24030; E 1203965.47511
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0
SHEAR STRENGTH, TONS/FT2
N O
T E
: T H
E S
E L
O G
S S
H O
U
LD
N O
T B
E U
S E
D S
E P
A R
A T
E
LY
F R
O M
T H
E P
R O
JE
C
T R
E P
O R
T
DEPTH DRILLED:
DATE DRILLED:
DEPTH TO WATER:
DATE MEASURED:
S Y
M B
O L
S A
M P
L E
S
The Lower Rio Grande Flood Control Project Cameron County, Texas
17 ft 10/23/2008
D E
P T
H , F
T
50.0 ft 10/23/2008
PROJ. No.:
FIGURE:
AMA08-115-00
A-24b
TBPE Firm Registration No. F-3257
FILL: SAND, clayey, light brown
FILL: CLAY, lean, very stiff to stiff, brown to light brown
CLAY, lean, with sand, firm, light brown
CLAY, fat, firm to soft, brown to dark brown
- becomes light brown in color below a depth of about 15 feet
SAND, silty, loose, brown, wet
Driller's Note: Converted to mud rotary drilling method at a depth of about 21-1/2 feet
SAND, with silt, poorly-graded, medium dense, brown to dark brown
LOG OF BORING NO. DP-24
P L
A S
T
IC
IT
Y
IN
D
E X
SURFACE ELEVATION: 73.59 ft
U N
IT
D
R Y
W
IE
G H
T , p cf
Straight Flight Auger & Mud Rotary
DRILLING
METHOD: LOCATION:
PLASTIC
LIMIT
LIQUID
LIMIT
WATER
CONTENT
B L
O W
S P
E R
F T
10 20 30 40 50 60 70 80
DESCRIPTION OF MATERIAL
N 16547793.07110; E 1204266.19410
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0
SHEAR STRENGTH, TONS/FT2
N O
T E
: T H
E S
E L
O G
S S
H O
U
LD
N O
T B
E U
S E
D S
E P
A R
A T
E
LY
F…
This is the start of the file's text. The full file is on GovTribe.
File details come from the government source that posted it. Updated .