20160517 Ver 2_More Info Received_20240530

Areas F-West and H Yard Improvements — Concrete Encasement Construction Method
Concrete encasement will be constructed in 5 sections approximately 200-feet in length
utilizing the following sequence.
Step 1. Install Turbidity Curtain Adjacent to Wharf Piling and perpendicular returns
on either side of the work area.
o The turbidity curtain will contain suspended debris/sediment from
demolition, cleaning, and excavation. Tarps will be set and secured (to the
existing sheetpile and pier piles to allow for debris/sediment to be captured
and properly disposed of prior to Step 5.
Step 2. Demolish Timber Wheel Guard and Top 1 Foot of Existing Sheet Piling
Step 3. Install New Tie Back System per Plan - Sta. 11+28 to Sta.12+03 & Sta. 19+22
to 19+69
Step 4. Clean Existing Sheet Piling (At Low Tide)
o Utilize low pressure 5000 psi & scraping to remove scaling and debris.
o Remove Containment Tarps with captured debris.
Step 5. Install Bottom Form, Blockout Support, Reinforcing Hangers, and
Reinforcing Steel, and Block Out (At Low Tide). Blockout Forms will be
secured to each adjoining panel and sealed at each vertical joint.
Step 6. Install Flat Web Sheet Piling to provide Containment and Structural
Component of Formwork. The combination of the Blocklout and Sheet Piling
seated of significant depth will provide a near impervious dike on the vertical
face and from underneath the cofferdam area and any concrete leakage into
the River.
o Brace sheet piling against wharf piling/deck.
o Depth of Sheets and Bracing to be designed by Geotechnical and Structural
Engineers. Sheet Piles are anticipated to be 20 to 30 feet below mudline. Top
of Sheet above existing Pier to provide added containment.
Step 7. Dewater Cofferdam with Pumps and Filter through Geo-Bags and/or similar
means.
Step 8. Pour Lower Concrete Encasement
Step 9. Form & Pour Upper Concrete Encasement
Step 10. Remove Impervious Dike (Flat Web Sheet Piling), Block Out and Block Out
Supports. (5 Setups)
Step 11. Point & Patch Concrete Face
Step 12. Repeat Steps 4 through 11 for Subsequent Sections
Step 13. Remove Turbidity Curtain

STEP 1
CL BULKHEAD 5-0'x t2W PILE MARF
CAPE FEAR
E}4SIlNG CHAIN LINK RNER BEYOND
FENCE, REPLACEaN-FUND J f WHARF EL+3.07
DO NOT DAM06E DEMOLISH TIMBER
TIE RODS DURING WHEELGUARDAND
CONSTRUCTIONS TOP 1'-CrOFSSP—
APPROX
EXCAVAT10N LI MFrS
EL +1.58
f MHHW- .-_
NCM i`ii'=: __ ='ENT)
CLEAN EXPOSED STEEL SURFACES TO SSPC�P12
OR EQUNALENT. CAPTURE ALL DEBRIS
i BZ450 ESP
M'L EL VARIES
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p MLL%V -2.60
{NDAkMMI20, PRESENT)

STEP 2
CL BULKHEAD 5-0'x t2W PILE MARF
CAPE FEAR
E}4SIlNG CHAIN LINK RNER BEYOND
FENCE, REPLACEaN-FUND J f WHARF EL+3.07
DO NOT DAM06E DEMOLISH TIMBER
TIE RODS DURING WHEELGUARDAND
CONSTRUCTIONS TOP 1'-CrOFSSP—
APPROX
EXCAVAT10N LI MFrS
EL +1.58
f MHHW- .-_
NCM i`ii'=: __ ='ENT)
CLEAN EXPOSED STEEL SURFACES TO SSPC�P12
OR EQUNALENT. CAPTURE ALL DEBRIS
i BZ450 ESP
M'L EL VARIES
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p MLL%V -2.60
{NDAkMMI20, PRESENT)

STEP 4 CL BULKHEAD t2W PILE MARF
CAPE FEAR
E}4SIlNG CHAIN LINK RNER BEYOND
FENCE, REPLACEaN-FUND J f WHARF EL+3.07
DO NOT DAM06E DEMOLISH TIMBER
TIE RODS DURING WHEELGUARDAND
CONSTRUCTIONS TOP 1'-CrOFSSP—
EL +1.58
f MHHW- .-_
NCM i`ii'=: __ ='ENT)
APPROx I- ] � I
EXCAVAT10N LJMrrS CLEAN E)GhDSED STEEL SURFACES TO SSPC�P12
I OR EQUNALENT. CAPTURE ALL DEBRIS
p MLL%V -2.60
{NDAkMMI20, PRESENT)
i BZ450 ESP
M'L EL VARIES
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STEP 5
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STEP 6
CONCRETE ENCASEMENT FOR
REINFORCEMENT, SEE B .
5�01
T.d_C. ELT D
IKE EL4A0 BOTTOM ENCASBdENT [UWD:
EXISTSSP (FACE OF STEEL VARIES)
}� BL BULKHEAD
1'3"
2'-6' 2'-6"t i W PILE WRARF
0_ CAPE FEAR
RIVER BEYOND
HDG CRMN LINK SECURrrY
FENCE, MATCH EASTING
iL MIN 8" PILE EMBEDMENT
i INTO ENCASEMENT
b
DOUBLE C
WALE, TYP
O MHHVdf2.08
fNOAA5258120, PRESENTI
p MLL%V -2.00
?NOAAA,ffi8120, PRESENT}
EL-5.00 BOTTOM ENCASEMENT (WATERSIDE)
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STEP 6 & 8
CONCRETE ENCASEMENT FOR
REINFORCEMENT, SEE B .
5�01
T.0_C. ELT D
EL4A0 BOTTOM ENC BdENdENT [LISND:
EXISTSSP (FACE OF STEEL VARIES)
}� BL BULKHEAD
Z-6- 2'4r± i 90' PILE WRARF
0_ CAPE FEAR
RIVER BEYOND
HDG CRMN LINK SECURrrY
FENCE, MATCH EASTING
iL MIN 8" PILE EMBEDMENT
i INTO ENCASEMENT
b
DOUBLE O
WALE, TYP
O MHHVdf2.08
fNOAA5258120, PRESENTI
p MLL%V -2.00
?NOAAP,ffi8120, PRESENT}
EL-5.00 BOTTOM ENCASEMENT (WATERSIDE)
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p
STEP 6 AND 8 °
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PLAN VIEW OF FORMING
AND CONTAINMENT
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WATERSIDE

STEP 9
CONCRETE ENCASEMENT FOR
REINFORCEMENT, SEE B .
5�01
T.d_C. ELT D
EL4A0 BOTTOM ENC BdENdENT [LISND:
EXISTSSP (FACE OF STEEL VARIES)
}� BL BULKHEAD
1'3"
2'-6' 2'-6"t i W PILE WRARF
0_ CAPE FEAR
RIVER BEYOND
HDG CRMN LINK SECURrrY
FENCE, MATCH EASTING
iL MIN 8" PILE EMBEDMENT
i INTO ENCASEMENT
b
DOUBLE C
WALE, TYP
O MHHVdf2.08
fNOAA5258120, PRESENTI
p MLL%V -2.00
?NOAAP,ffi8120, PRESENT}
EL-5.00 BOTTOM ENCASEMENT (WATERSIDE)
I ii T ii
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STEP 10
CONCRETE ENCASEMENT FOR
REINFORCEMENT, SEE B .
5�01
T.d_C. ELT D
EL4A0 BOTTOM ENC BdENdENT [LISND:
EXISTSSP (FACE OF STEEL VARIES)
}� BL BULKHEAD
1'3"
2'-6' 2'-6"t i W PILE WRARF
0_ CAPE FEAR
RIVER BEYOND
HDG CRMN LINK SECURrrY
FENCE, MATCH EASTING
iL MIN 8" PILE EMBEDMENT
i INTO ENCASEMENT
b
DOUBLE C
WALE, TYP
O MHHVdf2.08
fNOAA5258120, PRESENTI
p MLL%V -2.00
?NOAAP,ffi8120, PRESENT}
EL-5.00 BOTTOM ENCASEMENT (WATERSIDE)
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Step 13
CONCRETE ENCASEMENT FOR
REINFORCEMENT, SEE B .
5�01
T.0_C. ELT D
EL4A0 BOTTOM ENC BdENdENT [LISND:
EXISTSSP (FACE OF STEEL VARIES)
}� BL BULKHEAD
1'3"
2'-6' 2'-6"t i 90' PILE WRARF
0_ CAPE FEAR
RIVER BEYOND
HDG CRMN LINK SECURrrY
FENCE, MATCH EASTING
iL MIN 8" PILE EMBEDMENT
i INTO ENCASEMENT
b
DOUBLE O
WALE, TYP
O MHHVdf2.08
fNOAA5258120, PRESENTI
p MLL%V -2.00
?NOAAP,ffi8120, PRESENT}
EL-5.00 BOTTOM ENCASEMENT (WATERSIDE)
I ii T ii
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