Project SFM

Project no. 888

Tech Note SFM NIA v4

Client MPX

Date 15.07.21

Page | 1

SFM Existing Relocation – Navigational Impact Assessment

Background

Multiplex have been granted site access for the construction of the new Sydney Fish Market and it has been identified that to allow access to the site of the new Sydney Fish Market for construction, some changes are required to both:

• the SFM operational wharf (concrete) wharf by removing vessel access from the

southern side and western end of the Wharf

• the relocation of the public pontoon, and

• the installation of 8no. new mooring piles to the timber wharf, structural repairs to

the wharf substructure and changes in the arrangement due to the relocation of the

vessels.

Multiplex have provided details of the requirements which outlines the proposed scope of services and the following details provided by INSW:

• 1. SFM Trawler & pontoon relocation brief.pdf • 2. 210521 proposed SFM fishing vessel layout.pdf

The western and southern side of the Concrete Wharf fall within the Construction area for the construction of the New Sydney Fish Markets. This area is required for construction vessel movements, construction of temporary structures and main building elements. This will result in the southern berth face and western berth face of the existing concrete wharf no longer being accessible for the SFM fleet. However, the northern berth face of the existing concrete wharf will be accessible for operational use for the period up until the new Sydney Fish Market facilities are complete and ready for use. When berthing and mooring along the northern face SFM fleet vessels are not to encroach on the operation of the silt curtain or swing of the gate, ensuring that construction vessel access is not impeded.

Project SFM

Project no. 888

Tech Note SFM NIA v4

Client MPX

Date 15.07.21

Page | 2

Figure 1a – Proposed Timber Wharf Layout

Project SFM

Project no. 888

Tech Note SFM NIA v4

Client MPX

Date 15.07.21

Page | 3

Figure 1b – Concrete Wharf and Timber Wharf navigational area The mooring of the existing SFM fleet and associated vessels will therefore need to be relocated from the existing Concrete Wharf to the existing Timber Wharf. It has been agreed through a consultation process with SFM, INSW and Multiplex that the existing fleet will be relocated to the Timber Wharf for mooring purposes and that all other operational activities would continue to be accommodated along the northern side of the concrete wharf. In addition, there is a requirement to relocate the Public Pontoon from its current location south of the concrete wharf to a new location at the timber wharf as shown in Figure 1 above. Purpose

As part of the planning requirements for the relocation work, INSW will undertake a Review of Environmental Factors (REF) under the provisions of the SEPP (Infrastructure) 2007 which requires determineation under Part 5 of the Environmental Planning & Assessment Act 1979 (the Act). The details and navigational impacts of the new structures such as the relocated Public Pontoon and the additional piles at the Concrete Wharf are required to inform the REF. The REF will be completed

Project SFM

Project no. 888

Tech Note SFM NIA v4

Client MPX

Date 15.07.21

Page | 4

by BBC Planners and one of the requirements is to provide a Navigational Impact Assessment as part of that process. Scope of the Assessment

The scope of the navigation assessment is to address the navigational impacts of relocating the Public Pontoon, and adjustments to the SFM fleets mooring and berthing arangements at the Concrete Wharf to maintain ongoing SFM fleet operations. The assessment and suitability of the structural capacity of the existing wharf structures is outside the scope of this report. Information Provided

• SFM Trawler & pontoon relocation brief - INSW

• 210521 proposed SFM fishing vessel layout - INSW

• nSFM Navigation Impact Assessment – RHDHV - M&APA1665-103R002F12

• Silt Curtain Pack – Stage 1, 2 and 3 as appended

• Bathymetry Survey HCS446

Silt Curtain & Construction Vessel Access

The alignment of the silt curtain for stage 1 and stage 2 of the constructions works is shown below.

During stage 1 the silt curtain will be pulled back away from the Concrete Wharf to allow for construction vessels to access the eastern water area of the site. During stage 2 the silt curtain will need to move east to the end of the Concrete Wharf to allow for the main building piling works and cofferdam installation. The stage 2 silt curtain alignment is shown below relative to a 42m fairway width in Figure 2 demonstrating SFM fleet access to the Concrete Wharf can be maintained throughout the construction works. Stage 1 silt curtain alignment is from Site Possession until the completion of the SFM Fleet Relocation Works. Stage 2 silt curtain alignment is from the completion of SFM Fleet Relocation Works until approximately 6 months prior to completion. Stage 3 silt curtain alignment duration will therefore be for the last 6 months of the construction and commissioning works. It is envisaged there may be significant impacts during the stage 3 silt curtain alignment period – with operation to the wharf to be re-visited prior to commencement of stage 3 of the silt curtain.

Project SFM

Project no. 888

Tech Note SFM NIA v4

Client MPX

Date 15.07.21

Page | 5

Figure 2 – Proposed Stage 1 and 2 silt curtain alignment

Vessel Movements

This assessment is based on the key assumptions made within the RHDHV Navigation Impact Assessment (RHDHV-NIA) for vessel movements and interactions within the wider waterway areas of Blackwattle Bay and Rozelle Bay. With the major change under assessment being the associated impacts with the Public Pontoon relocation and fleet relocation, and in particular the increased number of local movements required between the Timber Wharf and the Concrete Wharf. Vessel Approach and Manoeuvring

As noted in the RHDHV-NIA the water depths of the approach to the Timber Wharf and Concrete Wharf are more than sufficient to accommodate the SFM fleet, visiting fleet and recreational vessels. It is noted that the SFM vessels have limited manoeuvrability due to their single prop and rudder configuration and therefore require more room to navigate. The minimum fairway width for vessels allowed under AS3962 is 1.5L (where L is the vessel length), however in consideration of the the fleets limited ablility to navigate, a preferred fairway width of 1.75L is applied in accordance with AS3962 and therefore a distance of 42m would be used based on the longest vessel, Francesa which

Project SFM

Project no. 888

Tech Note SFM NIA v4

Client MPX

Date 15.07.21

Page | 6

is 24m long. The distance between the Timber Wharf and Concrete Wharf is approximately 65m and therefore complies with the requirements of AS3962. As noted in the RHDHV-NIA report the assumed turning circle diameter of the vessels could be 1.5 to 1.8 times the vessel length, or a 36m to 43m diameter for a 24m vessel length. The distance between the Timber Wharf and Concrete Wharf is 65m, which is 2.7L, and therefore considered as adequate waterway area for vessels to perform a turning manoeuvre.

Figure 3 – Vessel Approach and Manoeuvring The public vessels accessing the relocated Public Pontoon are assumed to be up to 12m recreational boats and water taxis. The minimum fairway width required is therefore 18m and the minimum turning area required would be 18m to 22m. The water depth required to satisfy AS3962 for these vessels berthing at the Public Pontoon is 1.85m at MLWS. The preferred option for the relocation of the Public Pontoon is to north of the Timber Wharf as shown in Figure 4 below.

Project SFM

Project no. 888

Tech Note SFM NIA v4

Client MPX

Date 15.07.21

Page | 7

Figure 4 – Public Pontoon Option A.1 – Seabed profiling required Figure 4 - Option A.1 shown above is the preferred location to reduce navigational impacts to the operations of the existing fleet. However there is insufficient water depth if the existing pontoon and gangway is not extended into deeper water and therefore seabed profiling would be required to obtain the required water depth in accordance with AS3962, the volume of material required to be removed is circa 350 cub.m of seabed material. There is sufficient water depth to place the seabed spoil at the end of the Timber Wharf between seabed contour -4.5m CD to -6m CD within the same lease lot. Vessel Interaction

As noted in the RHDHV-NIA report the existing number of daily vessels movements for charter boats and fishing trawlers using the existing Fish Market wharves is relatively low at 3-10 vessels per day. The impact of the relocation of existing fleet to the Timber Wharf with respect to interaction with other motorised craft is minimal, however the number of movements between the Timber Wharf and Concrete Wharf is likely to double to enable the fleet to maintain operations. Due to this increased number of inter-wharf movements by the SFM fleet the preferred option for the relocation of the Public Pontoon is Option A.1 as other options explores resulted in increased impacts to SFM fleet operations. In terms of the passive craft such as rowing and dragon boats interactions this asssessment confirms any impact will remain unchanged from that already assessed.

Project SFM

Project no. 888

Tech Note SFM NIA v4

Client MPX

Date 15.07.21

Page | 8

Concrete Wharf Operations

To accomodate the changes required to commence the construction work berthing space at the Concrete Wharf will be reduced to the northern face only with no vessels to be moored beyond the end of the wharf.

The ongoing operational activities at the Concrete Wharf are assumed to include:

• loading and unloading of vessels • net removal and net repair • refuelling of vessels • restocking of vessel provisions, and • minor repairs and maintenance

Due to the proximity of the silt curtain and the inability to access the western end of the Concrete Wharf for net unloading, a net unloading mooring arrangement will be temporarily created at the eastern end of the Concrete Wharf as shown below in Figure 5. Two new steel mooring piles will be required the secure the vessel during net unloading operations and to assist with berthing the vessels and to stop vessels entering shallow water to the east. Due to the proximity of shallow water the alignment of the new net unloading berth will be slightly off perpendicular to the wharf.

Figure 5 – Proposed Concrete Wharf amendments

Project SFM

Project no. 888

Tech Note SFM NIA v4

Client MPX

Date 15.07.21

Page | 9

The proposed layout shown above provides sufficient space to berth up to 3 vessels at a time. The new piles for the net unloading berth will be positioned such that when the net unloading berth is not in use, 3 vessels can berth alongside the Concrete Wharf. Summary of Impacts

A navigational assessment has been undertaken to address the navigational impacts of the relocation of the Public Pontoon and the existing SFM fleet moorings and Concrete Wharf operations. The alignment of the floating silt curtain has been assessed for the stage 1 alignment and is considered to have minimal impact on the SFM fleet and recreational vessels. The relocation of the floating silt curtain to the stage 2 alignment will pose a greater impact on the existing fleet, however it is considered that the waterway between the Timber Wharf and Concrete Wharf is sufficiently expansive to comply with AS3962 requirements. The relocation of the Public Pontoon to the north of the Timber Wharf will reduce the interaction of recreational vessels with the existing fleet and construction vessels. Recreational vessel approach and fairway clearance geometry complies with the requirements of AS3962. SFM fleet berthing and mooring operations at the Concrete Wharf will be impacted by having access to the northern berth face only. The major impact to the fleet will be an increase in movements between the Timber Wharf and Concrete Wharf. Whilst it is considered that the waterway between the Timber Wharf and Concrete Wharf is sufficiently expansive to comply with AS3962 requirements, careful co-ordination of SFM fleet operations will be required by SFM to ensure operations remain efficient. A ‘Notice to Mariners’ should be issued to advise of the navigational changes, this is required to ensure recreational vessels are notified of the new location for berthing and mooring at the SFM Public Pontoon. Changes should be noted in any Construction Vessel Traffic Management Plan (CVTMP) developed by the marine sub-contractor during the construction phase. In accordance with Clause 67ZN of the Ports and Maritime Administration Regulation 2012, works involving disturbance of the port bed shall be subject to the written permission of the Harbour Master and shall be completed in accordance with the conditions attached to the approval. This would be required for the installation of new piles for the Public Pontoon and the new net unloading berth at the Concrete Wharf. Attachments – Stage 1, 2 and 3 Silt Curtain information

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Project:

NEW SYDNEY FISH MARKETS

Drawing:

SILT CURTAIN GENERAL ARRANGEMENT

STAGE 1

SMC Marine Pty Ltd.ABN 48 096 465 333www.smcmarine.com.au

p: 02 9818 4007

Drawing Number

SMC-MA-DWG-0001

Status

FOR INFORMATION

Revision

D

Date

05/03/2021

Drawn

Admin Building 3/ 4,Sydney Ports Secure Area,White Bay (End of RobertStreet),ROZELLE NSW 2039

PO Box 68, GLEBE NSW 2037

Client

Approved DateDescription

Rev.

SC 17/02/21ALTERNATE PROPOSAL TO SMC-MAR-001[D]

A

NOTES:

PILE LAYOUT - ST-002-01(G) Enstruct.

BOREHOLES - 29245(1) JK Geotechnics

SHEET PILE ARRANGEMENT - MPX

ADVICE

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SC 22/02/21UPDATED COFFERDAM ARRANGEMENT - MPX

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23.90 m

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SMC 2 BARGE

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INSW ADVISED FOR STAGE 1TO BE INSTALLED, APPROX85M IS REQUIRED BETWEENSTAGE 1 CURTAIN AND THECONCRETE WHARF FOR FISHMARKETS OPERATIONS

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Project:

NEW SYDNEY FISH MARKETS

Drawing:

SILT CURTAIN GENERAL ARRANGEMENT

STAGE 1

SMC Marine Pty Ltd.ABN 48 096 465 333www.smcmarine.com.au

p: 02 9818 4007

Drawing Number

SMC-MA-DWG-0001

Status

FOR INFORMATION

Revision

D

Date

05/03/2021

Drawn

Admin Building 3/ 4,Sydney Ports Secure Area,White Bay (End of RobertStreet),ROZELLE NSW 2039

PO Box 68, GLEBE NSW 2037

Client

Approved DateDescription

Rev.

SC 17/02/21ALTERNATE PROPOSAL TO SMC-MAR-001[D]

A

NOTES:

PILE LAYOUT - ST-002-01(G) Enstruct.

BOREHOLES - 29245(1) JK Geotechnics

SHEET PILE ARRANGEMENT - MPX

ADVICE

CH

SC 22/02/21UPDATED COFFERDAM ARRANGEMENT - MPX

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SC 02/03/21UPDATED COFFERDAM ARRANGEMENT - MPX

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Last 2 panels are a loose gate thatcan be unhooked at the concretewharf to allow access into site.

Adjusted Silt CurtainOutline

GATE SWINGZONE

NO BERTHING INFRONT OF GATE

INDICATIVE BARGETRAVEL PATH

STAGE 2 SILT CURTAININSTALL

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Project:

NEW SYDNEY FISH MARKETS

Drawing:

SILT CURTAIN GENERAL ARRANGEMENT

STAGE 1

SMC Marine Pty Ltd.ABN 48 096 465 333www.smcmarine.com.au

p: 02 9818 4007

Drawing Number

SMC-MA-DWG-0001

Status

FOR INFORMATION

Revision

D

Date

05/03/2021

Drawn

Admin Building 3/ 4,Sydney Ports Secure Area,White Bay (End of RobertStreet),ROZELLE NSW 2039

PO Box 68, GLEBE NSW 2037

Client

Approved DateDescription

Rev.

SC 17/02/21ALTERNATE PROPOSAL TO SMC-MAR-001[D]

A

NOTES:

PILE LAYOUT - ST-002-01(G) Enstruct.

BOREHOLES - 29245(1) JK Geotechnics

SHEET PILE ARRANGEMENT - MPX

ADVICE

CH

SC 22/02/21UPDATED COFFERDAM ARRANGEMENT - MPX

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SC 02/03/21UPDATED COFFERDAM ARRANGEMENT - MPX

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SC 05/03/21

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STAGE 3 SILT CURTAIN INSTALL- APPROX 6 MONTHS PRIOR TOCOMPLETION (DATE TBC)