P23946211_DWG.pdf
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About this file
This is a set of engineering drawings for the U.S. Coast Guard's Eagle New Dredging project at the Coast Guard Museum in New London, Connecticut (USCG Project Number 23946211). The drawings were issued for bidding in March 2026 and were prepared by Lloyd/Collins JV, with the A/E Project Number 23946278.
The project involves dredging operations at an active pier to achieve a proposed dredge depth of -17.0 feet Mean Lower Low Water (MLLW) with a 2.0-foot overdredge allowance to -19.0 feet MLLW. The total approximate dredge volume is 3,663 cubic yards, consisting of 1,978 cubic yards of design dredge template and 1,685 cubic yards from the overdredge allowance. The dredging area is located alongside the City Pier, parallel to the vessel's berthing position, with cross-sections developed along Alignment A (parallel to City Pier) and Alignment B (perpendicular to City Pier at areas with buried piling). The contractor is responsible for pre- and post-dredge surveys, volume calculations, placement of materials in approved Dredge Material Placement Areas (DMPA) in coordination with USCG, compliance with all permits including EPA NPDES construction stormwater discharge regulations, and maintaining water quality standards for return waters. The drawings also address pile removal for approximately 50 treated wooden piles identified through side-scan sonar, with detailed procedures prioritizing complete extraction using vibratory or direct pull methods, and cutting only as a last resort at least 2 feet below the proposed mudline. Coordination with USCG representatives is required prior to mobilization and throughout the project execution.
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Text version
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BRANCH CHIEF
U.S. COAST GUARD
CIVIL ENGINEERING UNIT
PROVIDENCE
CONNECTICUT VICINITY MAP
SCALE: NTS
CONNECTICUT LOCATION MAP
SCALE: NTS
USCG PROJECT NUMBER 23946211
EAGLE NEW DREDGING
NEW LONDON, CONNECTICUT USA
EXCEL
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U . S . C O A S T G U
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CIVIL
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PROVIDENCE
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U. S. COAST GUARD
CIVIL ENGINEERING
LOCATION
DATE
DATE
DAVID GLASS, PE
LOCATION
DRAWING INDEX
SHEET ID SHEET # SHEET TITLE
G-001 01 COVER SHEET
G-002 02 GENERAL NOTES
C-101 03 EXISTING SURVEY WITH DREDGE PRISM
C-102 04 PROPOSED DREDGE SITE PLAN
C-301 05 PROPOSED CROSS SECTIONS 1 OF 3
C-302 06 PROPOSED CROSS SECTIONS 2 OF 3
C-303 07 PSOPOSED CROSS SECTIONS 3 OF 3
C-501 08 SIDE SCAN AND PILE REMOVAL
M. P CAROSOTTO, P.E.
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Docusign Envelope ID: 91718338-C9F4-8709-8342-66DE7973CB47
3/6/2026
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1. THE DREDGING PROJECT IS AT AN ACTIVE PIER WHEREIN CONTRACTOR COORDINATION AND SCHEDULING WITH THE OWNER AND TENANT (USCG) WILL BE REQUIRED TO SUCCESSFULLY CONDUCT THE PROJECT. CONTRACTOR SHALL REQUEST AND USCG SHALL PROVIDE CONTACT INFORMATION OF THEIR REPRESENTATIVES PRIOR TO AWARD AND MOBILIZATION TO PROJECT SITE TO FACILITATE ANY REQUIRED COORDINATION EFFORTS.
2. PRIOR TO SETUP OF DREDGING EQUIPMENT, THE CONTRACTOR SHALL VERIFY ALL ELEVATIONS, COORDINATES, DIMENSIONS, AND EXISTING SITE CONDITOINS ARE CONSISTENT WITH THE DRAWINGS AND NOTIFY THE ENGINEER SHOULD THERE BE ANY DISCREPANCIES.
3. THE CONTRACTOR SHALL COMPLY WITH ALL PERMITS REQUIRED FOR THE PROJECT, AS SHOWN IN APPENDIX A OF THE SPECIFICATIONS.
4. THIS PROJECT IS SUBJECT TO ENVIRONMENTAL PROTECTION AGENCY (EPA) NATIONAL POLLUTION DISCHARGE ELIMINATION SYSTEM (NPDES) CONSTRUCTION STORM WATER DISCHARGE REGULATIONS AND REQUIREMENTS. THE CONTRACTOR SHALL EXECUTE A NOTICE OF INTENT TO COMPLY WITH NPDES REQUIREMENTS AND IMPLEMENT THE POLLUTION PREVENTION PLAN PER SPECIFICATIONS. COMPLY WITH ALL REPORTING AND INSPECTION REQUIREMENTS SET
FOR TH IN THE NPDES REGULATION.
GENERAL REQUIREMENTS
HORIZONTAL AND VERTICAL CONTROL
1. ALL ELEVATIONS SHOWN REFER TO MEAN LOWER LOW WATER (MLLW), UNLESS OTHERWISE NOTED.
2. COORDINATES SHOWN ARE CONNECTICUT STATE PLANE GRID, NAD 83, IN U.S. FEET.
3. HYDROGRAPHIC SURVEY WAS PERFORMED BY HYDROGRAPHIC SURVEYS ON OCTOBER 24, 2024.
4. WATER ELEVATION INFORMATION FOR THE PROJECT SITE WITH RESPECT TO MLLW ARE BELOW AND BASED ON NOAA STATION 8461490, NEW LONDON, CT.
· MEAN HIGHER HIGH WATER (MHHW) = 3.05'
· MEAN HIGH WATER (MHW) = 2.76'
· MEAN LOW WATER (MLW) = 0.19'
· MEAN LOWER LOW WATER (MLLW) = 0.00'
WATER SURFACE RANGE BETWEEN MLLW AND MHHW REPRESENTS A NORMAL STATISTICAL WATER SURFACE RANGE. WATER SURFACE WILL, ON OCCASION, BE
HIGHER OR LOWER THAN THIS RANGE.
DREDGING
1. SEE TECHNICAL SPECIFICATION 35 20 23 “DREDGING”.
2. NO SOIL BORINGS WERE PERFORMED AS PART OF THIS CONTRACT.
3. NO PHYSICAL DREDGING SHALL OCCUR OUTSIDE OF THE PROPOSED AREA TO BE DREDGED. EXISTING GRADES BEYOND THE LIMITS SHOWN SHALL NOT BE
DISTURBED.
4. THE CONTRACTOR IS RESPONSIBLE FOR PLACING ALL MATERIALS IN A DREDGE MATERIAL PLACEMENT AREA (DMPA) IN COORDINATION WITH THE USCG AND IN
ACCORDANCE WITH ALL APPLICABLE PERMITS FOR THE PROJECT.
5. EXCEPT AS OTHERWISE NOTED, MATERIAL SHALL NOT BE DEPOSITED OR ALLOWED TO FLOW INTO THE CHANNEL, OR INTO ANY STREAM TRIBUTARY, OR CANAL;
NOR SHALL MATERIALS BE ALLOWED TO FLOW ONTO ANY IMPROVED AREAS IN OR ADJACENT TO THE DMPA. MATERIAL DEPOSITED OUTSIDE OF THE DMPA SHALL BE REMOVED BY CONTRACTOR AT NO ADDITIONAL COST TO THE OWNER. CONTRACTOR SHALL BE RESPONSBILE FOR CLEANUP, MITIGATION, PERMITTING AND ALL OTHER CORRECTIVE MEASURES ASSOCIATED WITH MISPLACED DREDGE MATERAIL AND/OR DAMAGE CAUSED BY THE CONTRACTOR.
6. THE CONTRACTOR SHALL DEPLOY AND MAINTAIN BMP'S TO ASSURE RETURN WATER QUALITY MEETS PERMIT CONDITIONS.
7. ANY RETURN WATERS TO THE WATER OF THE US, SHALL MEET THE PERMIT REQUIREMENTS.
8. THE CONTRACTOR IS RESPONSIBLE FOR CONDUCTING PRE AND POST DREDGE SURVEY'S TO DETERMINE VOLUME OF MATERIAL TO BE DREDGED AND FINAL PAY QUANTITIES. CONTRACTOR SHALL PROVIDE TO THE OWNER A PLAN DRAWING OF THE SURVEY'S AND CROSS SECTIONS SHOWING VOLUME OF MATERIAL TO BE REMOVED AND THAT WAS REMOVED. SOUNDINGS FOR SAID CROSS SECTIONS SHALL BE TAKEN ALONG LINES WHICH ARE TRANSERSE TO THE DREDGING LIMITS AND NOT MORE THAN 50-FEET APART WITH A MINIMUM 1” = 10' VERTICAL AND 1” = 50' HORIZONTAL SCALE. DRAWINGS SHALL BE PROVIDED IN PDF AND AUTOCAD
FORMAT TO THE OWNER.
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(LEASED)
G-002
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0+50.00
N: 690186.67 E: 1180828.38
N: 690065.57 E: 1180806.09
N: 690100.69 E: 1180624.67
N: 690221.79 E: 1180646.97
-5
-1
-1
-2
-10
-15
-15 -15 -2
-2
-2
-20
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0+
0+00
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1. GRID SYSTEM IS IN FEET AND IS THE CONNECTICUT STATE PLANE
COORDINATE SYSTEM, NAD83.
2. DEPTHS ARE IN FEET AND ARE REFERENCED TO MEAN LOWER LOW
WATER (MLLW).
3. CUTTER EAGLE POSITION AND HULL SHAPE BASED ON
INFORMATION PROVIDED BY THE USCG (S-104), FORCE
PROTECTION PLAN.
4. SEE ESTIMATED DREDGING CROSS-SECTIONS ON SHEETS C-301
THRU C-303. DREDGING CROSS-SECTIONS HAVE BEEN
DEVELOPED RELATIVE TO ALIGNMENT A (ALONG SIDE /
PARALLEL CITY PIER) AND ALIGNMENT B (PERPENDICULAR CITY
PIER AT APPROXIMATE AREAS WITH BURIED PILING).
CITY PIER
NOTES
DREDGE AREADREDGE TO -17.0' MLLW
+2.0' OVERDREDGE
3.
184.78'
EXISTING
BULKHEAD
FLOATING DOCKS
CA
BL
E
AN
D
PI
PE
A
RE
A
5'
31.04'(NO DREDGING)
VESSEL
54.81'
OUTLINE OF PREVIOUS
PERMIT #SD-85-347
00 30 60A1 OVERALL SITE LAYOUT
SCALE: 1"=30'
NORTH
PLAN
TRUE N
KEVIN E. MATAKIS
111565
ALIGNMENT-A
ALIGNMENT-B
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1+
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2+
.0
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.0
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.0
0+25.00
0+50.00
N: 690186.67 E: 1180828.38
N: 690065.57 E: 1180806.09N: 690100.69
E: 1180624.67
N: 690221.79 E: 1180646.97
0+00
1+00
2+00
3+00
4+00 0+
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-25
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CITY PIER
(LEASED)
C-102
P7
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2. DEPTHS ARE IN FEET AND ARE REFERENCED TO MEAN LOWER LOW
WATER (MLLW).
3. CUTTER EAGLE POSITION AND HULL SHAPE BASED ON
INFORMATION PROVIDED BY THE USCG (S-104), FORCE
PROTECTION PLAN.
4. SEE ESTIMATED DREDGING CROSS-SECTIONS ON SHEETS C-301
THRU C-303. DREDGING CROSS-SECTIONS HAVE BEEN
DEVELOPED RELATIVE TO ALIGNMENT A (ALONG SIDE /
PARALLEL CITY PIER) AND ALIGNMENT B (PERPENDICULAR CITY
PIER AT APPROXIMATE AREAS WITH BURIED PILING).
CITY PIER
NOTES
DREDGE AREADREDGE TO -17.0' MLLW
+2.0' OVERDREDGE
3:1
3.
184.78'
EXISTING
BULKHEAD
FLOATING DOCKS
APPROXIMATE DREDGE VOLUMES:
DESIGN DREDGE TEMPLATE = 1,978 CU YDS
+2.0' OVERDREDGE = 1,685 CU YDS
TOTAL = 3,663 CU YDS
EXIST. PILES APPROX. LOCATION
(SEE D1, D4 & D6 SHEET D-101)
EXIST. PILES APPROX. LOCATION
(SEE D1, D4 & D6 SHEET D-101)
FUTURE FENDER
IMPROVEMENTS
CA
BL
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AN
D
PI
PE
A
RE
A
5'
31.04'(NO DREDGING)
VESSEL
54.81'
ALIGNMENT-A
ALIGNMENT-B
00 30 60A1 PROPOSED DREDGE SITE PLAN
SCALE: 1"=30'
NORTH
PLAN
TRUE N
KEVIN E. MATAKIS
111565
DREDGING AREAS
LEGEND:
1+00.00
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1+20.00
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2+00.00
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2+20.00
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1+80.00
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0 20 40 60 80 100 120 140 160 180 2000-20-40
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CITY PIER
(LEASED)
C-301
P7
11C
-3
CI
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IN
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UN
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P
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(8
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2. DEPTHS ARE IN FEET AND ARE REFERENCED TO MEAN LOWER LOW
WATER (MLLW).
3. CROSS-SECTIONS SHOWN THIS SHEET ARE RELATIVE ALIGNMENT A.
NOTES
BULKHEAD
NATURAL GROUND
NATURAL GROUND NATURAL GROUND
NATURAL GROUND
CITY PIER
CITY PIERCITY PIER
CITY PIER
NATURAL GROUND NATURAL GROUND
CITY PIER CITY PIER
OVERDREDGE EL. -19.0' MLLW
DREDGE EL. -17.0' MLLW
OVERDREDGE EL. -19.0' MLLW
DREDGE EL. -17.0' MLLW
OVERDREDGE EL. -19.0' MLLW
DREDGE EL. -17.0' MLLW
NATURAL GROUND
CITY PIER
KEVIN E. MATAKIS
111565
2+40.00
-40
-30
-20
-10
-50
-40
-30
-20
-10
0 20 40 60 80 100 120 140 160 180 2000-20-40
2+60.00
-50
-40
-30
-20
-10
-50
-40
-30
-20
-10
0 20 40 60 80 100 120 140 160 180 2000-20-40
2+80.00
-50
-40
-30
-20
-10
-50
-40
-30
-20
-10
0 20 40 60 80 100 120 140 160 180 2000-20-40
3+00.00
-50
-40
-30
-20
-10
-50
-40
-30
-20
-10
0 20 40 60 80 100 120 140 160 180 2000-20-40
3+20.00
-50
-40
-30
-20
-10
-50
-40
-30
-20
-10
0 20 40 60 80 100 120 140 160 180 2000-20-40
3+40.00
-50
-40
-30
-20
-10
-50
-40
-30
-20
-10
0 20 40 60 80 100 120 140 160 180 2000-20-40
DE
SI
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B Y:
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IT
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B Y:
DA
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2 3 4 5 6 7 8 9 10
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P
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US
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F
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A/ E
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US
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BA
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1"
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1/ 2"
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DO
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CI
VI
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PR
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OS
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C
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SS
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EC
TI
ON
S
OF
CITY PIER
(LEASED)
C-302
P7
11C
-3
CI
VI
L
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GI
NE
ER
IN
G
UN
IT
P
RO
VI
DE
NC
E
KI
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ST
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AI
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(8
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-4
SU
ED
F
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B
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DI
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2. DEPTHS ARE IN FEET AND ARE REFERENCED TO MEAN LOWER LOW
WATER (MLLW).
3. CROSS-SECTIONS SHOWN THIS SHEET ARE RELATIVE ALIGNMENT A.
NOTES
NATURAL GROUND NATURAL GROUND
NATURAL GROUND NATURAL GROUND
OVERDREDGE EL. -19.0' MLLW
DREDGE EL. -17.0' MLLW
OVERDREDGE EL. -19.0' MLLW
DREDGE EL. -17.0' MLLW
OVERDREDGE EL. -19.0' MLLW
DREDGE EL. -17.0' MLLW
CITY PIER
CITY PIERCITY PIER
CITY PIER
OVERDREDGE EL. -19.0' MLLW
DREDGE EL. -17.0' MLLW
NATURAL GROUND NATURAL GROUND
OVERDREDGE EL. -19.0' MLLW
DREDGE EL. -17.0' MLLW
CITY PIER CITY PIER
KEVIN E. MATAKIS
111565
0+25.00
-40
-30
-20
-10
-50
-40
-30
-20
-10
0 20 40 60 80 100 1200-20-40-60-80-100-120
0+50.00
-50
-40
-30
-20
-10
-50
-40
-30
-20
-10
0 20 40 60 80 100 120 1400-20-40-60-80-100-120
DE
SI
GN
ED
B Y:
DE
SC
RI
PT
IO
N
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IT
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B Y:
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N
BY
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2 3 4 5 6 7 8 9 10
F
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CI
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PS
OP
OS
ED
C
RO
SS
S
EC
TI
ON
S
OF
CITY PIER
(LEASED)
C-303
P7
11C
-3
CI
VI
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GI
NE
ER
IN
G
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P
RO
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NC
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, T
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(8
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SU
ED
F
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B
ID
DI
NG
M
AR
2. DEPTHS ARE IN FEET AND ARE REFERENCED TO MEAN LOWER LOW
WATER (MLLW).
3. CROSS-SECTIONS SHOWN THIS SHEET ARE RELATIVE ALIGNMENT B.
NOTES
NATURAL GROUND
NATURAL GROUND
BULKHEAD
BULKHEAD
OVERDREDGE EL. -19.0' MLLW
DREDGE EL. -17.0' MLLW
OVERDREDGE EL. -19.0' MLLW
DREDGE EL. -17.0' MLLW
KEVIN E. MATAKIS
111565
GN
ED
B Y:
DE
SC
RI
PT
IO
N
M
AR
K
ED
IT
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B Y:
DA
TE
CH
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D
BY
DR
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N
BY
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2 3 4 5 6 7 8 9 10
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P
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A/
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NO
SHEET ID
M
EA
SU
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M
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1"
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1/ 2"
US
CG
D
RA
W
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N
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BE
R
PILE REMOVAL FOR TREATED PILES (ALTERNATIVE BID ONLY) NOTES
1. PRIOR TO COMMENCEMENT OF THE WORK, THE CONTRACTOR SHOULD ASSESS THE CONDITION OF THE
PILING AND IDENTIFY THE BEST MEANS FOR REMOVAL OF THE PILING. THE CONTRACTOR'S WORK PLAN MUST INCLUDE PROCEDURES FOR EXTRACTING AND HANDLING PILING THAT BREAK OFF DURING REMOVAL. IN
GENERAL, COMPLETE EXTRACTION OF PILING IS ALWAYS PREFERABLE TO PARTIAL REMOVAL.
2. THE CRANE OPERATOR SHALL REMOVE PILING SLOWLY. THIS WILL MINIMIZE TURBIDITY IN THE WATER
COLUMN AS WELL AS SEDIMENT DISTURBANCE.
3. THE OPERATOR SHALL MINIMIZE OVERALL DAMAGE TO TREATED WOOD PILING DURING REMOVAL. IN PARTICULAR, TREATED WOOD PILING MUST NOT BE BROKEN OFF INTENTIONALLY BY TWISTING, BENDING OR OTHER DEFORMATION. THIS WILL HELP REDUCE THE RELEASE OF WOOD-TREATING COMPOUNDS (E.G., CREOSOTE) AND WOOD DEBRIS TO THE WATER COLUMN AND SEDIMENTS.
4. UPON REMOVAL FROM THE SUBSTRATE AND WATER COLUMN, THE PILING SHALL BE MOVED EXPEDITIOUSLY INTO THE CONTAINMENT AREA FOR PROCESSING, AND DISPOSAL AT AN APPROVED OFF-SITE, UPLAND
FACILITY
5. THE PILING SHALL NOT BE SHAKEN, HOSED-OFF, STRIPPED OR SCRAPED ON, LEFT HANGING TO DRIP OR ANY OTHER ACTION INTENDED TO CLEAN OR REMOVE ADHERING MATERIAL FROM THE PILING. ANY SEDIMENT ASSOCIATED WITH REMOVED PILING MUST NOT BE RETURNED TO THE WATERWAY. ADHERED SEDIMENTS ASSOCIATED WITH TREATED PILING ARE LIKELY CONTAMINATED AND MAY, ALONG WITH PILING, REQUIRE
SPECIAL HANDLING AND DISPOSAL.
6. THE OPERATOR SHALL MAKE MULTIPLE ATTEMPTS TO REMOVE A PILE BEFORE RESORTING TO CUTTING.
7. VIBRATORY EXTRACTION IS THE PREFERRED METHOD OF PILING REMOVAL BECAUSE IT CAUSES THE LEAST DISTURBANCE TO THE SEABED, RIVER OR MUDLINE AND IT TYPICALLY RESULTS IN THE COMPLETE REMOVAL
OF THE PILING FROM THE AQUATIC ENVIRONMENT.
8. THE OPERATOR SHOULD “WAKE UP” PILING BY VIBRATING TO BREAK THE SKIN FRICTION BOND BETWEEN PILING AND SEDIMENT. BOND BREAKING AVOIDS PULLING OUT A LARGE BLOCK OF SEDIMENT AND POSSIBLY
BREAKING OFF THE PILING IN THE PROCESS.
9. DIRECT PULL EXTRACTION REFERS TO THE REMOVAL OF PILING BY GRABBING OR WRAPPING THE PILING AND THEN DIRECTLY PULLING THE PILING FROM THE SEDIMENT - USING A CRANE OR OTHER LARGE MACHINERY.
FOR EXAMPLE, PILING IS WRAPPED WITH A CHOKER CABLE OR CHAIN AND THEN REMOVED BY CRANE WITH A DIRECT UPWARD PULL. ANOTHER METHOD COULD INVOLVE AN EXCAVATOR WITH A PINCER ATTACHMENT THAT CAN GRASP A PILE AND REMOVE IT WITH A DIRECT UPWARD PULL. THE USE OF DIRECT PULL CAN BE
COMBINED WITH INITIAL VIBRATORY EXTRACTION.
10. CLAMSHELL REMOVAL OF PILING USES A BARGE-BASED CLAMSHELL BUCKET. THE CLAMSHELL IS LOWERED FROM A CRANE AND THE JAWS GRASP THE PILING STUB AS THE CRANE PULLS UP. CLAMSHELL BUCKET EXTRACTION HAS THE POTENTIAL TO DISTURB SEDIMENTS IF DEPLOYED CLOSE TO THE SEDIMENT SURFACE AND INCREASES THE LIKELIHOOD OF DAMAGING PILING WHICH CAN RESULT IN INCOMPLETE REMOVAL OF A PILE. HOWEVER, A CLAMSHELL BUCKET MAY BE NEEDED WHEN BROKEN OR DAMAGED PILING CANNOT BE REMOVED USING VIBRATORY OR DIRECT PULL EXTRACTION METHODS. EXTRACTION WITH A CLAMSHELL MIGHT BE THE BEST WAY TO REMOVE PILING THAT WERE CUT AT OR BELOW THE MUDLINE PREVIOUSLY AND
HAVE LITTLE OR NO STUB ACCESSIBLE ABOVE THE MUDLINE.
11. TO THE EXTENT POSSIBLE, CLAMSHELL EXTRACTION SHOULD BE PERFORMED DURING LOW TIDE OR LOW RIVER FLOWS. UNDER THESE CONDITIONS, THE OPERATOR CAN SEE THE REMOVAL SITE AND PILING, IMPROVING THE CHANCE FOR FULL REMOVAL OF PILING.
12. SINCE SEDIMENT MANAGEMENT IS POTENTIALLY A LARGER CONCERN WHEN USING A BUCKET, EVERY EFFORT SHOULD BE MADE TO PROPERLY SIZE THE BUCKET TO THE JOB AND OPERATE IT IN WAYS THAT MINIMIZE
SEDIMENT DISTURBANCE.
13. EXCAVATION OF SEDIMENT FROM AROUND THE BASE OF A PILE MAY BE REQUIRED TO GAIN ACCESS TO PORTIONS OF THE PILE THAT ARE SOUND, AND TO ALLOW FOR EXTRACTION USING EITHER DIRECT PULL METHODS OR CLAM SHELL. HYDRAULIC JETTING DEVICES SHOULD NOT BE USED TO MOVE SEDIMENT AWAY FROM PILING, IN ORDER TO MINIMIZE TURBIDITY AND RELEASE TO THE WATER COLUMN AND SURROUNDING
SEDIMENTS.
14. BECAUSE CLAMSHELL EXTRACTION HAS A HIGHER POTENTIAL TO GENERATE DEBRIS, AN OFFSHORE BOOM SHALL BE IN PLACE WITH THIS REMOVAL TECHNIQUE. IF TREATED WOOD PILINGS ARE BEING REMOVED, EXTRACTED PILES SHALL BE TRANSFERRED TO THE CONTAINMENT BASIN WITHOUT LEAVING THE BOOMED AREA TO PREVENT LOSS OF TREATED WOOD CHEMICALS (E.G., CREOSOTE) AND DEBRIS TO THE WATER
COLUMN AND SEDIMENTS.
15. THE OPERATOR MUST MINIMIZE PINCHING OF TREATED WOOD AND OVERALL DAMAGE TO TREATED WOOD PILING DURING REMOVAL. THIS WILL HELP REDUCE THE POTENTIAL FOR RELEASING TREATED WOOD
CHEMICALS (E.G., CREOSOTE) AND DEBRIS TO THE WATER COLUMN AND SEDIMENTS.
16. NO GRUBBING FOR BROKEN PILING IS ALLOWED.
17. PILE CUTTING SHALL BE CONSIDERED A LAST RESORT FOLLOWING MULTIPLE ATTEMPTS TO FULLY EXTRACT PILING USING VIBRATORY, DIRECT PULL, AND/OR CLAMSHELL BUCKET EXTRACTION. A PNEUMATIC UNDERWATER CHAINSAW, SHEARING EQUIPMENT, OR OTHER EQUIPMENT SHOULD BE USED TO CUT A PILE.
18. PILING SHALL BE CUT BELOW THE MUDLINE, WITH CONSIDERATION GIVEN TO THE MUDLINE ELEVATION, SLOPE
AND STABILITY OF THE SITE.
19. PILING SHALL BE CUT OFF AT LEAST 2-FEET BELOW THE PROPOSED MUDLINE AND FINAL DREDGE ELEVATION.
20. HAND EXCAVATION OF SEDIMENT (WITH DIVERS) IS NEEDED TO GAIN ACCESS FOR CUTTING EQUIPMENT. TO MINIMIZE TURBIDITY AND RELEASE TO THE WATER COLUMN AND SURROUNDING SEDIMENTS, HYDRAULIC
JETTING DEVICES SHALL NOT BE USED TO MOVE SEDIMENT AWAY FROM PILING.
21. THE CONTRACTOR SHALL PROVIDE A POST-PILE REMOVAL DRAWING/MAP TO THE GOVERNMENT FOR THE ADMINISTRATIVE RECORD, WHICH SHOWS THE LOCATION AND NUMBER OF PILINGS LEFT IN PLACE (ABOVE
AND BELOW MUDLINE) WITH THE GPS LOCATION(S) IN NAD 83.
NATURAL
GROUND
EXTRACT PILE IF POSSIBLE. OTHERWISE CUT 2-FT
BELOW PROPOSED MUDLINE IN ACCORDANCE W/ PILE
REMOVAL NOTES AND TECHNICAL SPECIFICATIONS
SECTION 35 20 23 "DREDGING" .
-17.0' MLLW
-19.0' MLLW
(OVERDREDGE
ALLOWANCE)-21.0' MLLW
(MIN. CUT-OFF ELEVATION)
EXISTING PILING
CONDITION UNKNOWN
PILE TIP UNKNOWN
(NUMBER OF PROBABLE PILES THAT
SHOULD BE REMOVED: APPROX. 50-QTY)
EA
GL
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W D
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CI
VI
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DE
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CA
N
AN
D
PI
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R
EM
OV
AL
CITY PIER
(LEASED)
C-501
P7
11C
-5
CI
VI
L
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GI
NE
ER
IN
G
UN
IT
P
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DE
NC
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KI
LV
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AI
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(8
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-4
SU
ED
F
OR
B
ID
DI
NG
M
AR
D1 SONAR MOSAIC OF SURVEY AREA
SCALE: N.T.S.
NORTH
PLAN
TRUE N
D4 OR TARGET CLUSTERS
NOTABLE SONAR TARGETS
SCALE: N.T.S.
NORTH
PLAN
TRUE N
D6 OR TARGET CLUSTERS
NOTABLE SONAR TARGETS
SCALE: N.T.S.
NORTH
PLAN
A1 TYPICAL PILE REMOVAL SECTION
SCALE: N.T.S.
KEVIN E. MATAKIS
111565
TRUE N
| Sheets and Views |
| G-001 COVER SHEET |
| G-002 GENERAL NOTES |
| C-101 EXISTING SURVEY WITH DREDGE PRISM |
| C-102 PROPOSED DREDGE SITE PLAN |
| C-301 PROPOSED CROSS SECTIONS 1 OF 3 |
| C-302 PROPOSED CROSS SECTIONS 2 OF 3 |
| C-303 PSOPOSED CROSS SECTIONS 3 OF 3 |
| C-501 SIDE SCAN AND PILE REMOVAL |
| 2026-03-06T09:08:50-0800 | |
| Digitally verifiable PDF exported from www.docusign.com |
| 2026-04-16T14:09:58-0400 | |
| GLASS.DAVID.N.1273006709 |
| 2026-06-24T14:49:29-0400 | |
| CAROSOTTO.MICHAEL.P.1021033398 |
File details come from the government source that posted it. Updated .