A.02 AIWW Maintenance Dredging Drawings.pdf

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Attached to
Atlantic Intracoastal Waterway (AIWW) Maintenance Dredging
Solicitation number
W912HN21S5007
Issued by

About this file

This sources sought notice requests information from contractors interested in the Atlantic Intracoastal Waterway Maintenance Dredging project. The U.S. Army Corps of Engineers, Savannah District will perform maintenance dredging in two sites on the AIWW in Georgia and South Carolina, removing up to 600,000 cubic yards of material. Elba Cut material will be placed in Dredged Material Containment Area 14B, and Altamaha Sound material will create a temporary 13.2 acre bird nesting site and the remaining material will be placed on Tract 36A. Interested parties should provide company information, bonding and capability statements by May 15th addressing their experience in mechanical dredging, barge operations, and upland or in-river placement. Team arrangements should describe the administrative structure and percentage of work for each party.

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Text version

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US Army Corps of Engineers

Savannah District

MAINTENANCE DREDGING

FY-20 ATLANTIC INTRACOASTAL WATERWAY

SELECTED SITES

SOLICITATION NO.: W912HN-20-B-XXXX

CONTRACT NO.: XXXXXX-XX-X-XXXX

ISSUE DATE: SEPTEMBER 2020

SIGNATURES AFFIXED BELOW INDICATE OFFICIAL RECOMMENDATION

AND APPROVAL OF ALL DRAWINGS IN THIS SET AS INDEXED ON THIS SHEET.

Reviewed by:*

Quality Control/PE/A DATE

Approval Recommended:*

HYDROLOGY & HYDRAULICS BRANCH, CHIEF DATE

Approved:*

ENGINEERING DIVISION, CHIEF DATE

*THIS PROJECT WAS DESIGNED BY THE U.S. ARMY CORPS OF ENGINEERS,

SAVANNAH DISTRICT. INDIVIDUALS WHOSE SIGNATURES AND REGISTRATION

DESIGNATIONS APPEAR ON THESE DOCUMENTS ARE OPERATING WITHIN THE

SCOPE OF THEIR EMPLOYMENT. SIGNATURES ARE REQUIRED BY ER 1110-1-8152.

INDEX OF DRAWINGS

Sheet Number Sheet Title

GI0001 Cover Sheet and Index of Drawings

GC101 General Location Plan

VH100 Examination Survey - Elba Cut

VH101 Altamaha Sound Overview

VH102 Examination Survey - Altamaha Sound South

VH103 Examination Survey - Altamaha Sound South

VH104 Examination Survey - Altamaha Sound North

CB101 Disposal Area 14B

CB102 Bird Island - Open Water Placement Area

© 2020 Microsoft Corporation © 2020 Maxar ©CNES (2020) Distribution Airbus DS

© 2020 Microsoft Corporation © 2020 Maxar ©CNES (2020) Distribution Airbus DS

© 2020 Microsoft Corporation © 2020 Maxar ©CNES (2020) Distribution Airbus DS

© 2020 Microsoft Corporation © 2020 DigitalGlobe ©CNES (2020) Distribution Airbus DS © 2020 Microsoft Corporation © 2020 DigitalGlobe ©CNES (2020) Distribution Airbus DS

© 2020 Microsoft Corporation © 2020 DigitalGlobe ©CNES (2020) Distribution Airbus DS

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1. THE INFORMATION DEPICTED ON THIS DRAWING IS FOR PLOTTING PURPOSES

ONLY AND SHALL NOT BE USED FOR COMPUTATION OF ANY VOLUME USED FOR

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2. VERTICAL DATUM: M.L.L.W.

3. NAD 83 GA EAST ZONE.

4. SURVEYED 2 MAR 2020.

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(OPEN WATER PLACEMENT)

AIWW CHANNEL

FRAMEWORK

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1. THE INFORMATION DEPICTED ON THIS DRAWING IS FOR PLOTTING PURPOSES

ONLY AND SHALL NOT BE USED FOR COMPUTATION OF ANY VOLUME USED FOR

PAYMENT PURPOSES.

2. VERTICAL DATUM: M.L.L.W.

3. NAD 83 GA EAST ZONE.

4. SURVEYED 28 FEB 2020.

5. BASE BID TO INCLUDE DREDGING OF ALTAMAHA SOUND SOUTH, WITH

OPEN-WATER DISPOSAL AT NEW ISLAND LOCATION (SEE SHEET CB102).

6. IF OPTION IS FULLY AWARDED, CONTRACTOR SHALL UTILIZE TRACT 36A (SEE

SHEET VH103) FOR UNCONFINED UPLAND PLACEMENT OF REMAINING DREDGE

MATERIAL IN ALTAMAHA SOUND SOUTH.

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NOTES:

1. THE INFORMATION DEPICTED ON THIS DRAWING IS FOR PLOTTING PURPOSES

ONLY AND SHALL NOT BE USED FOR COMPUTATION OF ANY VOLUME USED FOR

PAYMENT PURPOSES.

2. VERTICAL DATUM: M.L.L.W.

3. NAD 83 GA EAST ZONE.

4. SURVEYED 28 FEB 2020.

5. BASE BID TO INCLUDE DREDGING OF ALTAMAHA SOUND SOUTH, WITH

OPEN-WATER DISPOSAL AT NEW ISLAND LOCATION (SEE SHEET CB102).

6. IF OPTION IS FULLY AWARDED, CONTRACTOR SHALL UTILIZE TRACT 36A (THIS

SHEET) FOR UNCONFINED UPLAND PLACEMENT OF REMAINING DREDGE MATERIAL

IN ALTAMAHA SOUND SOUTH.

7. MATERIAL PLACED ON TRACT 36A SHALL BE PLACED IN SUCH A MANNER AS TO

MINIMIZE FLOW OF MATERIAL INTO ADJACENT WETLANDS AND WATERS.

TRACT 36A

UNCONFINED

DISPOSAL AREA

(LOCATION APPROXIMATE)

AREAS OF DREDGED

MATERIAL PLACEMENT

(TYPICAL)

O

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REQUIRED DEPTH: 12'

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N: 488190.96

E: 918149.53

N: 488186.56

E: 918074.06

N: 488181.08

E: 917998.79

N: 485267.03

E: 918618.16

N: 485313.95

E: 918685.71

N: 485220.11

E: 918550.61

N: 483665.80

E: 921429.65

N: 483601.46

E: 921391.00

N: 483537.13

E: 921352.35

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NEW ISLAND PLACEMENT AREA

(SEE SHEET CB102)

NOTES:

1. THE INFORMATION DEPICTED ON THIS DRAWING IS FOR PLOTTING PURPOSES

ONLY AND SHALL NOT BE USED FOR COMPUTATION OF ANY VOLUME USED FOR

PAYMENT PURPOSES.

2. VERTICAL DATUM: M.L.L.W.

3. NAD 83 GA EAST ZONE.

4. SURVEYED 22 APR 2020.

5. CONTRACTOR SHALL UTILIZE NEW ISLAND SITE (SEE SHEET CB102) FOR DISPOSAL

OF DREDGED MATERIAL IN ALTAMAHA SOUND NORTH.

BIRD ISLAND

(EXISTING)

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REQUIRED DEPTH: 12'

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VEHICLE

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CB101

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DMCA 14A/14B

CROSS DIKE WEIR

DMCA 14A/14B

CROSS DIKE

APPROXIMATE

LOCATION OF HEAD

SECTION FOR O&M

DREDGING

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3-HDPE 30 IN. DIA.

CULVERTS W/ FLAP GATES

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EXTENT OF

INTERIOR SWALE

WEIR 14B-1

BLOCKED WITH DIRT FILL

MAINTAIN DIRT AROUND WEIR

WEIR 14B-2

BLOCKED WITH DIRT FILL

MAINTAIN DIRT AROUND WEIR

WEIR 14B-4/5

48" KNIFE GATE VALVE

WEIR 14B-3

BLOCKED WITH DIRT FILL

MAINTAIN DIRT AROUND WEIR

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BIRD ISLAND

CB102

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CONTINUOUS

SLOPE FROM

ELEVATION 10 TO 13

RELATIVELY FLAT AREA,

WITH SLIGHT UNDULATIONS

NEW ISLAND

AREA OF DREDGED

MATERIAL PLACEMENT

(TYPICAL)

5:1 SLOPES,

ENTIRE PERIMETER

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Sheets and Views
GI0001 Cover Sheet and Index of Drawings
GC101 General Location Plan
VH100 Examination Survey - Elba Cut
VH101 VH101 - Altamaha Sound Overview
VH102 Examination Survey - Altamaha Sound South
VH103 Examination Survey - Altamaha Sound South
VH104 Examination Survey - Altamaha Sound North
CB101 Disposal Area 14B
CB102 Bird Island - Open Water Placement Area

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