W9127820B0003 RTA DRAWINGS.pdf

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W9127820B0003 - Mobile Harbor, Alabama, Deepening and Widening – Phase 1
Solicitation number
W9127820B0003
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This document includes technical drawings and specifications for a federal solicitation to dredge and widen the Mobile Harbor in Alabama. The solicitation number is W9127820B0003 and was issued by the U.S. Army Corps of Engineers Engineering District Mobile. The technical drawings depict the overall and partial dredge plans, dredge disposal areas, and bar channel cross sections. Products and services required include dredging and widening of the Mobile Harbor to deepen the navigation channel. The response deadline is not stated.

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W9127820B0003 Abstract.pdf PDF
W9127820B0003 AM01.pdf PDF
W9127820B0003 AM01 DRAWINGS.pdf PDF
W9127820B0003 IFB.PDF PDF
W9127820B0003 EM 385-1-1.pdf PDF

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Text version

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MOBILE DISTRICT PROJECT CODE: CHC20001

SOLICITATION NO: W9127820B0003

AUGUST 2020

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TITLE OF DRAWINGS

COVER SHEET WITH INDEX OF DRAWINGS

GENERAL NOTES

PROJECT MAP

OVERALL DREDGE PLAN

PARTIAL DREDGE PLAN

PARTIAL DREDGE PLAN

PARTIAL DREDGE PLAN

DREDGE DISPOSAL AREA

BORING PLAN AND PROFILE

BAR CHANNEL CROSS SECTIONS

BAR CHANNEL CROSS SECTIONS

BAR CHANNEL CROSS SECTIONS

BAR CHANNEL CROSS SECTIONS

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MOBILE HARBOR ALABAMA

DEEPENING AND WIDENING - PHASE 1

US Army Corps of Engineers®

MOBILE DISTRICT

109 SAINT JOSEPH STREET

MOBILE AL 36602

MOBILE, ALABAMA

®of Engineers US Army Corps

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1793102.80 57486.362119+33.78

1794165.62 60270.902089+53.30

1794847.90 63187.672059+57.80

1799166.53 81649.831869+97.27

1799403.12 82661.271859+58.52

1799423.63 83151.161854+68.20

1799249.51 84191.791844+13.10

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1798185.95 90548.051779+68.48

1798233.86 91904.651765+99.29

1798307.71 92490.011760+09.29

STATION NORTHING EASTING

CENTERLINE COORDINATES

MOBILE BAR CHANNEL

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7. ONLY USACE GAGES SHALL BE USED FOR REFERENCE UNLESS OTHERWISE APPROVED BY THE COR. GAUGES WILL BE PROVIDED AT THE PRE-CONSTRUCTION MEETING.

6. ALL UTILILTY LOCATIONS ARE APPROXIMATE AND SHOULD BE FIELD VERIFIED.

5. FREQUENCY SOUNDINGS: 208KHZ

4. THE INFORMATION DEPICTED ON THIS MAP REPRESENTS THE RESULTS OF SURVEYS MADE ON THE DATES INDICATED AND CAN ONLY BE CONSIDERED AS INDICATING THE GENERAL CONDITIONS EXISTING AT THE TIME.

3. THE HYDROGRAPHIC SURVEY FOR THIS PROJECT WAS PERFORMED ON SEPTEMBER 30, 2019 BY THE IRVINGTON SITE OFFICE OF THE U.S. ARMY CORPS OF ENGINEERS.

2. ALL COORDINATES SHOWN IN THIS PLAN SET ARE IN FEET AND ARE REFERENCED TO ALABAMA STATE PLANE COORDINATE SYSTEM NAD 83 DATUM (0102) WEST ZONE.

1. ALL ELEVATIONS SHOWN IN THIS PLAN SET ARE REFERENCED TO FEET IN MEAN LOWER LOW WATER (M.L.L.W.) DATUM.

GENERAL NOTES:

0 20000'10000' p o o

PROJECT LOCATION

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TREATMENT PLANT ON DELCHAMPS

SHELF WATERS TO THE GAS

FROM THE OUTER CONTINENTAL

HYDROCARBON: 20" PIPELINE

AL 1993 02574

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DREDGE DISPOSAL AREA

8" BULK GAS P/L & 2" SUPPLY GAS P/L

APPROXIMATE LOCATION OF W&T OFFSHORE, INC. PIPELINE

APPROXIMATE LOCATION OF W&T OFFSHORE, INC. 4" PRODUCED LIQUID PIPELINE

CHANNEL COORDINATES

SLOPE 1V:7H (TYP.)

CHANNEL CENTERLINE

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1790317.48 51030.21 H

1790878.03 50816.25 G

1792289.95 54515.42 F

1792739.97 55414.01 E

1792822.53 57593.34 D

1794548.94 60153.45 C

1794103.39 61777.99 B

1794886.12 61594.90 A

EASTINGNORTHINGPNT.

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CENTERLINE OF CHANNEL

1. SEE SHEET G-002 FOR GENERAL NOTES.

NOTES:

GULF OF MEXICO

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ROUTINE MAINTENANCE (O&M) DREDGING

-49' MLLW ROUTINE (O&M) ADVANCED MAINTENANCE DREDGE TEMPLATE

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ROAD IN SOUTH MOBILE COUNTY.

TREATMENT PLANT ON DELCHAMPS

SHELF WATERS TO THE GAS

FROM THE OUTER CONTINENTAL

HYDROCARBON: 20" PIPELINE

AL 1993 02574

ROAD IN SOUTH MOBILE COUNTY.

TREATMENT PLANT ON DELCHAMPS

SHELF WATERS TO THE GAS

FROM THE OUTER CONTINENTAL

HYDROCARBON: 20" PIPELINE

AL 1993 02574

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CHANNEL COORDINATES

1790317.48 51030.21 H

1790878.03 50816.25 G

1792289.95 54515.42 F

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1792822.53 57593.34 D

1794548.94 60153.45 C

1794103.39 61777.99 B

1794886.12 61594.90 A

EASTINGNORTHINGPNT.

1. SEE SHEET G-002 FOR GENERAL NOTES.

NOTES:

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N.T.S.

VARIES

XX-XX-XX

LEGEND

EXISTING GRADE

DEEPENING DREDGE TEMPLATE

CENTERLINE OF CHANNEL

A1

BORING LOCATION

RED GAS BUOY

GREEN GAS BUOYGGB X

RGB X

NEW WORK DREDGING

-54' MLLW NEW WORK ADVANCED MAINTENANCE

-56' MLLW NEW WORK ALLOWABLE OVER DEPTH

ROUTINE MAINTENANCE (O&M) DREDGING

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-50' MLLW ROUTINE (O&M) ALLOWABLE OVERDEPTH DREDGE TEMPLATE

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A L

CHANNEL COORDINATES

1790317.48 51030.21 H

1790878.03 50816.25 G

1792289.95 54515.42 F

1792739.97 55414.01 E

1792822.53 57593.34 D

1794548.94 60153.45 C

1794103.39 61777.99 B

1794886.12 61594.90 A

EASTINGNORTHINGPNT.

V :7

H

T Y

P

J U

L Y

W

B

N

1. SEE SHEET G-002 FOR GENERAL NOTES.

NOTES:

®of Engineers US Army Corps

U .S

A R

M Y C

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P S O

F E

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XX-XX-XX

LEGEND

EXISTING GRADE

DEEPENING DREDGE TEMPLATE

CENTERLINE OF CHANNEL

A1

BORING LOCATION

RED GAS BUOY

GREEN GAS BUOYGGB X

RGB X

NEW WORK DREDGING

-54' MLLW NEW WORK ADVANCED MAINTENANCE

-56' MLLW NEW WORK ALLOWABLE OVER DEPTH

ROUTINE MAINTENANCE (O&M) DREDGING

-54

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CHANNEL COORDINATES

1790317.48 51030.21 H

1790878.03 50816.25 G

1792289.95 54515.42 F

1792739.97 55414.01 E

1792822.53 57593.34 D

1794548.94 60153.45 C

1794103.39 61777.99 B

1794886.12 61594.90 A

EASTINGNORTHINGPNT.

1. SEE SHEET G-002 FOR GENERAL NOTES.

NOTES:

J U

L Y

W

B

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®of Engineers US Army Corps

U .S

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XX-XX-XX

LEGEND

EXISTING GRADE

DEEPENING DREDGE TEMPLATE

CENTERLINE OF CHANNEL

A1

BORING LOCATION

RED GAS BUOY

GREEN GAS BUOYGGB X

RGB X

NEW WORK DREDGING

-54' MLLW NEW WORK ADVANCED MAINTENANCE

-56' MLLW NEW WORK ALLOWABLE OVER DEPTH

ROUTINE MAINTENANCE (O&M) DREDGING

GREEN GAS BUOY

LEGEND

S O

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DAUPHIN ISLAND

PELICAN BAY

P E

LIC

A N

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LA

N

D

FORT MORGAN PENINSULA

MORGAN

FORT

GAINES

FORT

E1794538.00 N68664.43

LIGHTHOUSE

SAND ISLAND

M O

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IM

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N:70000 N:70000

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®of Engineers US Army Corps

W

B

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THE ODMDS.

MATERIAL SHALL NOT EXCEED EL. -30 FEET MLLW WITHIN

2. THE MAX CREST ELEVATION OF DISPOSED DREDGED

1. SEE SHEET G-002 FOR GENERAL NOTES.

NOTES:

U .S

A R

M Y C

O R

P S O

F E

N G

IN

E E

1790597.75 50923.232189+58.73

1793102.80 57486.362119+33.78

1794165.62 60270.902089+53.30

1794847.90 63187.672059+57.80

1799166.53 81649.831869+97.27

1799403.12 82661.271859+58.52

1799423.63 83151.161854+68.20

1799249.51 84191.791844+13.10

1798488.09 88742.301797+99.33

1798450.05 88969.641795+68.83

1798185.95 90548.051779+68.48

1798233.86 91904.651765+99.29

1798307.71 92490.011760+09.29

STATION NORTHING EASTING

CENTERLINE COORDINATES

MOBILE BAR CHANNEL

CN105CN105

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SCALE: 1" = 2000'

DREDGE DISPOSAL AREA

RGB 2

1770+00

1775+00 1780+0

1785+0

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1800+0

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2025+00 2030+00 2035+00 2040+00 2045+00 2050+00 2055+00 2060+00

2070+00

2075+00 2080+00 2085+00

2090+00 2095+00

2100+00 2105+00

2110+00 2115+00

2130+00 2135+00

2140+00 2145+00

2150+00 2155+00

2160+00 2165+00

2170+00 2175+00

2180+00 2185+00

STA. 1765+99.29

PI

STA. 1775+26.83

PI

STA. 1779

+68.48PI

STA. 1795

+68.83

PI

STA. 1844

+13.10

PI

STA. 2059+57.80

PI

STA. 2089+53.30

PI

STA. 2119+33.78

PI

STA. 2189+58.73

POE

STA. 1859+58.52

PI

STA. 1854

+68.20

PI

GGB 7

RGB 12

RGB 10

RGB 6

GGB 3

RGB 4

GGB 5

RGB 8

GGB 11

GGB 9

GGB 1

ROAD IN SOUTH MOBILE COUNTY.

TREATMENT PLANT ON DELCHAMPS

SHELF WATERS TO THE GAS

FROM THE OUTER CONTINENTAL

HYDROCARBON: 20" PIPELINE

AL 1993 02574

TO STATION 2189+58.73

DREDGE AREA STATION 2075+00

LIMITS OF DISPOSAL

APPROVED ODMDS

' B

U F F

E

RN: 53622.90

E: 1768002.24

N: 53592.18

E: 1773350.14

N: 57914.14

E: 1773782.45

N: 57838.63

E: 1769105.70

4" PRODUCED LIQUID PIPELINE

W&T OFFSHORE, INC.

APPROXIMATE LOCATION OF

APPROXIMATE LOCATION OF W&T OFFSHORE, INC. PIPELINE

& 2" SUPPLY GAS P/L

8" BULK GAS P/L

SLOPE 1V:7H (TYP.)

CHANNEL CENTERLINE

CHANNEL TOE

SEDIMENT TRAP

TOP OF SLOPE

S O

L

IC

IT

A T

IO

N N

O

D E

S

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N E

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D E

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H E

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A M

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C A

D D C

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X X

X -X

X -X -X

C -C

N .d

XX-XX-XX

C H

C

J

M C

C O

N N

E L L

J

G

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S O

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E

G O

D S

E Y

B

C R

A N

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M O

B

IL

E H

A R

B O

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A L

A B

A M

A

M O

B

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E

A L

C H

C

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M C

C O

N N

E L L

J

G

IB

S O

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E

G O

D S

E Y

B

C R

A N

E

M O

B

IL

E H

A R

B O

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A L

A B

A M

A

M O

B

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E

A L

-80

-75

-70

-65

-60

-55

-50

-45

-40

-35

-30

-25

M H

V B

C -0

-1

S G -2

-8

S G -2

-8

2184+92.2

S G -2

-8

2180+00 2170+00 2160+00 2150+00 2140+00 2130+00 2120+00 2110+00 2100+00 2080+00 2070+00 2060+00 2050+00

2156+95.2

M H

V B

C -0

-1

2150+01.8

2134+83.4

S G -2

-8

2119+86

M H

V B

C -0

-1

2113+51.3

S G -1

-8

2094+70.8

2078+62.6

M H

V B

C -0

-1

2090+00

-80

-75

-70

-65

-60

-55

-50

-45

-40

-35

-30

-25

2189+58.7

E L E

V A

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N I

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M .L .L .W

D A

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M

N :5

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N :6

N :6

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E:1

E:1

E:1

E:1

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E:1

BORING PROFILE

M H

V B

C -0

-1

GULF OF MEXICO

0 500' 1000'

DISTANCE IN FEET

SM - SILTY SANDS, SAND SILT MIXTURE

ML - INORGANIC SILTS AND VERY FINE SANDS, SILTY OR CLAYEY FINE SANDS OR CLAYEY SILTS WITH SLIGHT PLASTICITY

CL - INORGANIC CLAYS WITH LOW TO MEDIUM PLASTICITY, GRAVELY CLAYS, SILTY CLAYS, LEAN CLAYS

SC - CLAYEY SANDS, CLAY + SAND MIXTURE

CH - INORGANIC CLAYS WITH HIGH PLASTICITY, FAT CLAYS

MH - INORGANIC SILT, MICACEOUS OR DIATOMACEOUS FINE SANDS OR SILTY SOILS, PLASTIC SILTS

SP - POORLY GRADED SANDS

GREEN GAS BUOY

RED GAS BUOY

BORING LOCATION

LEGEND

W

B

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L Y

2166+50

4. PHASE 1 WORK AREA EXTENDS FROM STATION 2075+00 TO 2189+58.71.

SHOULD BE CONSIDERED APPROXIMATE.

3. BORING LOCATIONS AND ELEVATIONS AS SHOWN ON THE BORING LOGS AND BORING PROFILES

BORING LOGS OR BORING PROFILES.

WILL NOT BE CONSIDERED AS DIFFERING MATERIALLY FROM THE DESCRIPTION SHOWN WITH THE

OF THE SUBSURFACE MATERIALS ARE ANTICIPATED AND, IF ENCOUNTERED, SUCH VARIATIONS

LOCATIONS AND FOR THEIR RESPECTIVE VERTICAL REACHES, VARIATIONS IN CHARACTERISTICS

2. WHILE THE BORINGS ARE REPRESENTATIVE OF SUBSURFACE CONDITIONS AT THEIR RESPECTIVE

ASTM D 2487 AND VISUAL- MANUAL PROCEDURES, ASTM D 2488.

1. SOILS ARE CLASSIFIED IN ACCORDANCE WITH THE UNITED SOIL CLASSIFICATION SYSTEM (USCS), NOTES:

U .S

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IN

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2055+32.4

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HORIZONTAL SCALE: 1" = 500'

VERTICAL SCALE: 1" = 10'

10' 20'0

VERTICAL SCALE: 1" = 10'

HORIZONTAL SCALE: 1" = 500'

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2" SUPPLY GAS P/L

8" BULK GAS P/L & APPROXIMATE LOCATION OF W&T OFFSHORE, INC. PIPELINE

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2170+00.00

-70

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0 100 200 300 400 500 600-100-200-300-400-500-600-700

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2185+00.00

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2189+58.71

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®of Engineers US Army Corps

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CN304

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CHC20001-G-001-Model-000
CHC20001-G-002-Default-000
CHC120001-G-003-sheet-000
CHC20001-CN101-SHEET-000
CHC20001-CN102-SHEET-000
CHC20001-CN103-SHEET-000
CHC20001-CN104-SHEET-000
CHC20001-CN105-SHEET-000
CHC20001-CN106-SHEET-000
CHC20001-CN301-Model-000
CHC20001-CN302-Model-000
CHC20001-CN303-Model-000
CHC20001-CN304-Model-000

File details come from the government source that posted it. Updated .