Chapter 6: Construction Work

6.5 Construction ancillary facilities

6.5.1 Overview

Twelve construction ancillary facilities are described and assessed in this EIS. These are shown in overview in Figure 6-1 and relative to the project footprint in Figure 6-2 to Figure 6-10. The construction ancillary facilities would be used for a combination of civil surface works, tunnelling and tunnelling support, construction workforce parking and administrative purposes, as summarised in Table 6-5 and described in more detail in the following sections.

The number, location and layout of construction ancillary facilities would be finalised as part of detailed construction planning during detailed design and would meet the environmental performance outcomes stated in the EIS and the Submissions and Preferred Infrastructure Report and satisfy criteria identified in any relevant conditions of approval. Further, additional ancillary facilities may be proposed by the contractor, once engaged. Prior to the establishment of ancillary facilities that are not identified in this EIS, the contractor would need to satisfy criteria that would be identified in any relevant conditions of approval and in accordance with an Ancillary Facilities Management Plan.

 

To assist in informing the development of a construction methodology that would manage constructability constraints and the need for construction to occur in a safe and efficient manner, while minimising impacts on local communities, the environment, and users of the surrounding road and other transport networks, two possible combinations of construction ancillary facilities at Haberfield and Ashfield have been assessed in this EIS (see Table 6-4). The construction ancillary facilities that comprise these options have been grouped together in this EIS and are denoted by the suffix a (for Option A) or b (for Option B) eg Wattle Street civil and tunnel site (C1a).

Table 6-4 Possible construction ancillary facility combinations at Haberfield and Ashfield assessed in this EIS

Option A	Option B
Wattle Street civil and tunnel site (C1a)	Parramatta Road West civil and tunnel site (C1b)
Haberfield civil and tunnel site (C2a)	Haberfield civil site (C2b)
Northcote Street civil site (C3a)	Parramatta Road East civil site (C3b)

The layout and access arrangements for the construction ancillary facilities are based on the concept design only and would be confirmed and refined during detailed design. The final construction site layouts and access arrangements would have regard to the following amenity criteria:

•   Where practicable, temporary buildings and structures (such as offices and amenities) would be used to provide a noise barrier between the construction site and adjacent sensitive receivers
•   The location of temporary buildings and structures would have regard to overlooking and overshadowing impacts on adjacent sensitive receivers
•   Where feasible and reasonable, acoustic sheds would be provided to ensure that noise- generating activities undertaken outside standard construction hours would comply with relevant noise goals
•   Lighting would be designed to minimise light spill onto adjoining properties
•   Spoil stockpiles would be located away from adjacent sensitive receivers where possible
•   Appropriate erosion and sediment controls would be incorporated
•   Vehicle access points and internal circulation roads would be located away from adjacent sensitive receivers
•   Vehicle access points would have ready access to the arterial road network and would minimise the need for heavy vehicles to travel on local roads through residential areas
•  Construction sites would provide sufficient area for the storage of raw materials to minimise, to the greatest extent practical, the number of deliveries required outside standard construction hours.

Site establishment activities would initially be carried out at each construction ancillary facility. This would involve:

•   Demolition of buildings and clearing landscaped vegetation, where required
•   Utility works including protection and/or adjustment of existing utilities, removal of redundant

  utilities and installation of new utilities

•   Provision of services required for construction, such as power, water, sewer and communications
•   Establishment of site compound and ancillary facilities, such as offices, amenities and workshops
•   Establishment of vehicle access and egress points
•   Establishment of truck wheel wash facilities or rumble grids
•   Establishment of internal roads
•   Establishment of hardstand areas for storage and car parking
•   Establishment of acoustic sheds
•   Establishment of site hoardings, noise barriers and/or fencing around the perimeter of the site.

   

Some of these site establishment activities may be carried out as enabling works (see section 6.4.1). During site establishment, all vehicles would enter and exit the sites using existing access points, until the new construction entry and exit points as described below are constructed and operational.

6.5.10 The Crescent civil site (C6)

The Crescent civil site (C6) would be located between The Crescent and Rozelle Bay on land owned by Roads and Maritime. The site would be cleared and a hardstand and laydown area, site offices, workforce amenities and car parking established.

Key construction activities to be carried out at and supported by The Crescent civil site would include:

•   Vegetation clearing and removal
•   Utility works including protection and/or adjustment of existing utilities, removal of redundant utilities and installation of new utilities
•   Site establishment, including establishment of a hardstand and laydown area, erection of temporary fencing and gates and establishment of construction access points
•   Establishment of site offices, amenities and temporary construction hoarding (including acoustic hoarding if required)
•   Temporary stockpiling of fill and pavement materials as well as materials generated from construction activities prior to off-site removal
•   Realignment of The Crescent including construction of a new bridge over Whites Creek
•   Widening and improvement works along Whites Creek, including naturalisation of a section of

  Whites Creek between The Crescent and Rozelle Bay

•   Construction of the culvert below City West Link that would convey flows from the Rozelle Rail Yards to Rozelle Bay, including upgrades to the Rozelle Bay outfall
•   Finishing works including asphalting, line marking and signage installation
•   Excavating, filling and grading of disturbed areas
•   Construction of pedestrian and cyclist paths and bridges
•   Rehabilitation and landscaping adjacent to disturbed areas to be consistent with the Urban Design and Landscape Plan
•  Demobilisation and rehabilitation of the remainder of the site to generally its pre-construction state.

An indicative site layout for The Crescent civil site is shown in Figure 6-22. The construction activities program relevant to the site is outlined in Table 6-14. At the completion of construction, a portion of this site would be occupied by operational road infrastructure. The remainder of the site would be rehabilitated.

The Crescent civil site (C6) would be established on land immediately adjacent to Rozelle Bay and Whites Creek and would support construction activities in and adjacent to these waterways. Although the project would be exempt from the controlled activity provisions of the Water Management Act 2000 (NSW) relating to activities on waterfront land (refer to Chapter 2 (Assessment process)), consideration would be given to relevant NSW Department of Primary Industries (Water) (DPI-Water) guidelines to minimise effects to water flow, maintain bed and bank stability and minimise harm to the waterfront and in-stream environments. In addition, the proposed waterway crossing at Whites Creek would be designed and constructed to have no greater impact on aquatic habitat than the existing crossing type (bridge).

It is anticipated that construction vehicles would enter the site via a left-in from The Crescent (southbound). They would then travel through the site, turn around and exit back onto The Crescent northbound via a right hand turn. Temporary traffic management measures would be established to enable access and egress arrangements. These would be detailed in a CTAMP, which would be prepared to manage construction traffic associated with the project. Details about spoil haulage routes are included in section 6.6.5 and Chapter 23 (Resource use and waste minimisation).

It is anticipated that construction works at The Crescent civil site (C6) would be carried out during standard daytime construction hours. Further details about construction hours are included in section 6.7.2.

 

6.5.13 Pyrmont Bridge Road tunnel site (C9)

The Pyrmont Bridge Road tunnel site (C9) would be located between Parramatta Road and Pyrmont Bridge Road at Annandale on land currently occupied by commercial and light industrial businesses, which are to be acquired and demolished for the project. Further details about acquisitions that would occur as part of the project are provided in Chapter 12 (Land use and property).

The construction ancillary facility would be used to support tunnelling construction activities. The site would include temporary site offices, a workshop and storage facilities, a laydown area, entry and exit points for construction traffic, a temporary substation, temporary ventilation for the tunnels, a temporary water treatment plant and sediment pond, workforce amenities and car parking.

Key construction activities to be carried out at and supported by the Pyrmont Bridge Road tunnel site would include:

•   Demolition of existing structures including buildings
•   Utility works including protection and/or adjustment of existing utilities, removal of redundant

  utilities and installation of new utilities

•   Establishment of site offices, amenities and temporary construction hoarding (including acoustic hoarding if required)
•   Permanent realignment of Bignell Lane to ensure property owners have ongoing access to properties during construction and operation
•   Construction of a driveway along the Parramatta Road frontage to enable access into the site for heavy vehicles
•   Provision of a temporary signalised intersection or other temporary traffic control measures along Pyrmont Bridge Road to provide for heavy vehicle egress and light vehicle ingress and egress
•   Construction of an acoustic shed
•   Construction of a temporary access tunnel for tunnelling works
•   Tunnel excavation of the northbound and southbound mainline tunnels
•   Spoil handling and haulage
•   Excavation of cross-passages, longitudinal egress passages and niches in the tunnels
•   Civil tunnel fitout works (including pavement and drainage works)
•   Installation of mechanical and electrical services within the mainline tunnels and fitout of the tunnels with additional infrastructure (eg signage)
•   Rehabilitation including works to prepare the site for a future use in accordance with the Residual Land Management Plan
•   Demobilisation.

Roadheaders would be launched from this site and would initially excavate the temporary access tunnel, and then the eastbound and westbound mainline tunnels. An acoustic shed would be established on the site to ensure that noise levels associated with tunnelling and spoil handling outside standard day time construction hours comply with relevant noise management activities. In addition, temporary noise mitigation measures may be employed, including temporary acoustic hoarding and other temporary structures such as site buildings, which would be located to minimise noise impacts on surrounding properties.

Heavy vehicle access to the site would be from the northern (eastbound) carriageway of Parramatta Road. Vehicles would enter via a new driveway, travel in an anti-clockwise direction via an internal access road, and exit the site onto Pyrmont Bridge Road via a new temporary signalised intersection. Light vehicle ingress and egress would be from Pyrmont Bridge Road. Temporary traffic management measures would be established to enable access and egress arrangements. These would be detailed in a CTAMP, which would be prepared to manage construction traffic associated with the project. Details about spoil haulage routes are included in section 6.6.5 and Chapter 23 (Resource use and waste minimisation).

 

Spoil handling associated with the tunnelling works supported by the site would occur 24 hours a day, seven days a week. Where practical, spoil would be handled below ground and removed during the day, outside of peak periods. Heavy vehicle movements associated with the removal of spoil from tunnelling would only occur via ingress from Parramatta Road and egress to Pyrmont Bridge Road. Feasible and reasonable management strategies would be investigated to minimise the volume of heavy vehicle movements outside standard day time construction hours. Any spoil removal outside standard construction hours would meet the relevant noise criteria. Further details about construction hours are included in section 6.7.2.

The location of the Pyrmont Bridge Road tunnel site and an indicative layout of the site are shown in Figure 6-24. An indicative program for works to be conducted within the Pyrmont Bridge Road tunnel site is provided in Table 6-17.

Table 6-17 Pyrmont Bridge Road tunnel site (C9) indicative construction program

6.6 Traffic management and access

This section provides an overview of the traffic management and access provisions that would be put in place during construction of the project, to maintain the functionality of surrounding roads, and to protect the safety of all road users, including pedestrians, cyclists, motorists, public transport users and construction personnel. This section also provides indicative heavy and light vehicle volumes associated with construction, details of parking for the construction workforce, heavy vehicle haulage routes to spoil reuse and disposal sites and the use of alternative routes in the case of ‘exceptional circumstances’.

Construction of the project would be subject to careful traffic management to ensure the functionality of surrounding roads is maintained, as well as the safety of members of the public, motorists and construction personnel. Generally, temporary road pavements would be constructed as early as possible within the construction program to separate motorists from construction work zones. However, a number of phases of traffic management and traffic switches would be required at some locations to facilitate construction.

Traffic management measures implemented during construction would be determined during detailed design and documented in a CTAMP that would be prepared as part of the CEMP, and may include:

•   Carrying out the works in stages to reduce traffic impacts
•   Temporary speed restrictions within construction work zones
•   Reduced shoulder widths and erection of traffic barriers along construction work zones
•   Scheduling spoil haulage to occur outside of peak periods (where practicable)
•   Provision of appropriate warning and advisory signposting
•   Provision of temporary access arrangements with private landowners whose property is adjacent to construction activities (where required)
•   Provision for public transport and emergency services to ensure disruption is minimised.

  At all locations where temporary and/or permanent road closures are required, access to properties would be maintained and signage for road closures or detours would be installed. Further details and the potential impacts of these modifications are provided in Chapter 8 (Traffic and transport). Roads that would permanently be closed as a result of the project are described in Chapter 5 (Project description).

6.6.1 Changes to the road network during construction

It is anticipated that road network modifications would be required to facilitate construction of the project. These are identified indicatively in Table 6-19. A strategy for managing changes to the road network during construction would be provided as part of the CTAMP, which would be prepared during detailed design. Further information about indicative changes to the road network is provided in Chapter 8 (Traffic and transport) and Appendix H (Technical working paper: Traffic and transport).

Table 6-19 Indicative road network modifications

Location	Indicative road network modifications	Indicative duration1	Road reinstatement
Wattle Street interchange	 Northcote Street would be closed at the intersection with Parramatta Road for the duration of construction. This would be a continuation of the current closure of this section of Northcote Street to facilitate construction of the M4 East project.	 Until completion of tunnel works in 2022.	Once construction is complete, the Northcote Street/Parramatta Road intersection would be reinstated.
Parramatta Road West civil and tunnel site (C1b) and Parramatta Road East civil site (C3b)	  Works would be carried out on Alt Street and Bland Street to facilitate access via new driveways to the Parramatta Road West civil and tunnel site (C1b) and the Parramatta Road East civil site (C3b)   Temporary closures of one lane of Alt Street and Bland Street may be required for establishment of construction vehicle access provisions including installation of driveways and associated construction activities. Traffic management, that could include temporary diversions, would be implemented during temporary closures   Kerbside parking along a section of Alt Street near the intersection with Parramatta Road would be removed to facilitate driveway access to the construction ancillary facilities.	  Q3 2018 to Q1 2019 to complete road modifications   Q3 2018 to Q4 2022 including construction duration and reinstatement of roads.	Once road modification works are complete, both lanes along Alt Street and/or Bland Street would be reopened in line with temporary design. When construction is complete, the road would be reinstated as per the existing arrangement. Kerbside parking along Alt Street would be reinstated at the end of construction.
Darley Road civil and tunnel site (C4)	  Works would be carried out to facilitate access to the Darley Road civil and tunnel site (C4) including establishment of a temporary right hand turn lane for construction traffic to access Darley Road from City West Link   Temporary diversions along Darley Road may be required during construction (to enable establishment of construction vehicle access provisions)   One lane in each direction along Darley Road (between around Francis Street and Charles Street at Leichhardt) would generally be maintained, with temporary closures of one lane required for establishment of construction vehicle access provisions including installation of driveways and associated construction activities. Traffic management, that could include temporary diversions, would be implemented during temporary closures   Kerbside parking along the northern (eastbound) carriageway of Darley Road between around Francis Street and Charles Street would be removed (around 20 spaces) during construction.	  Q3 2018 to Q1 2019 to complete road modifications   Q3 2018 to Q4 2022 including construction duration and reinstatement of roads.	Once road modification works are complete, Darley Road would be reopened in line with temporary design. When construction is complete, the road would be reinstated as per the existing arrangement. Kerbside parking along Darley Road would be reinstated at the end of construction.

 

Location	Indicative road network modifications	Indicative duration1	Road reinstatement
City West Link and The Crescent at Lilyfield and Rozelle	  Works would be carried out to facilitate ingress and egress for the Rozelle civil and tunnel site (C5) including establishment temporary intersections, slip lanes and driveways   Works would be carried out to upgrade and improve the eastbound and westbound carriageways of City West Link and The Crescent   Temporary diversions would be put in place to allow for construction along the existing alignment   Under existing and diverted arrangements, all traffic lanes in each direction would generally be maintained with some short- term lane closures (outside of peak periods where feasible and reasonable) subject to road occupancy licences.	  Q4 2018 to Q2 2019 to complete road modifications   Q4 2018 to Q3 2023 including construction duration staging, temporary roads and reinstatement of roads.	When construction is complete, the road would be reinstated as per the permanent design shown in Chapter 5 (Project description).
The Crescent at Annandale and Rozelle	  Works would be carried out to establish a new driveway for ingress and egress for The Crescent civil site (C6)   Works would be carried out to realign The Crescent and reconstruct the intersection with City West Link   The new alignment of The Crescent would be constructed ‘offline’ (that is, next to the existing alignment). Traffic would be switched onto the new alignment when ready, and the old alignment of The Crescent would be demolished   All traffic lanes in each direction would generally be maintained with some short-term lane closures (outside of peak periods where feasible and reasonable) subject to road occupancy licences   Temporary changes to the intersection of The Crescent/Chapman Road may be required. Access to the commercial premises, including the Multihull Central Marina, that use Chapman Road as well as the Glebe Foreshore Parklands would be protected and maintained at all times   Traffic signal modifications at the intersection with City West Link in line with the temporary and permanent design.	  Q1 2019 to Q2 2019 to complete road modifications   Q1 2019 to Q3 2023 including construction duration staging, temporary roads and reinstatement of roads.	Once road modification works are complete, the road would be reopened in line with temporary design. When construction is complete, the road would be reinstated as per the permanent design.

 

Location	Indicative road network modifications	Indicative duration1	Road reinstatement
Victoria Road at Rozelle	  All traffic lanes in each direction would generally be maintained with some short-term lane closures (outside of peak periods where feasible and reasonable) subject to road occupancy licences   Traffic signal modifications at the intersection with The Crescent in line with the permanent design   Temporary diversions would be put in place at the intersection with The Crescent to allow for construction of the new bridge in line with the permanent design. This could include the construction a temporary bridge next to the existing bridge, onto which traffic would be switched during construction of the new bridge. When complete, traffic would be switched onto the new bridge and the temporary bridge would be removed.	  Q4 2018 to Q2 2019 to complete road modifications   Q4 2018 to Q3 2023 including construction duration staging, temporary roads and reinstatement of roads.	Once road modification works are complete, the road would be reopened in line with temporary design. When construction is complete, the road would be reinstated as per the permanent design.
Gordon Street south of Lilyfield Road at Rozelle	 Gordon Street between Lilyfield Road and the Rozelle Rail Yards would be permanently closed as part of the project.	N/A	Gordon Street would be permanently closed.
Lilyfield Road at Rozelle	  Temporary closures to one lane would be required for short periods of time to allow for construction of the construction access driveways, utility works and construction of the cut-and- cover structures   Access to Lilyfield Road from Victoria Road may be temporarily restricted to allow for integration with the revised Victoria Road alignment. Closures would be outside of peak periods where feasible and reasonable. During these periods, alternative access to Lilyfield Road would be available from Hornsey Street and Gordon Street.	  Q4 2018 to Q2 2019 to complete road modifications   Q2 2019 to Q4 2019 for utility relocations   Q4 2018 to Q3 2023 including construction duration staging and reinstatement of roads.	Once works are completed, the road would be reopened in line with permanent design.
Hornsey Street at Rozelle	  One lane in each direction would generally be maintained during construction   Access to Hornsey Street from Victoria Road would require full closure for short periods of time during realignment and upgrade works to Victoria Road   Alternative access to Hornsey Street would be available from Lilyfield Road and Gordon Street.	  Q4 2018 to Q2 2019 to complete road modification   Q4 2018 to Q3 2023 including construction duration staging and reinstatement of roads.	Once works during the stage are completed, the road would be reopened in line with permanent design.

 

Location	Indicative road network modifications	Indicative duration1	Road reinstatement
Quirk Street at Rozelle	  One lane in each direction would generally be maintained during construction   Access to Quirk Street from Victoria Road would require full closure for short periods of time during realignment and upgrade works to Victoria Road   Alternative access to Quirk Street would be available from Hornsey Street and Gordon Street.	  Q4 2018 to Q2 2019 to complete road modifications   Q4 2018 to Q3 2023 including construction duration staging and reinstatement of roads.	Once works during the stage are completed, the road would be reopened in line with permanent design.
Iron Cove Link civil site (C8) and Victoria Road	  Works would be carried out along Victoria Road to facilitate ingress and egress for the Iron Cove Link civil site (C8)   All traffic lanes in each direction would generally be maintained with some short-term lanes closures (outside of peak periods where feasible and reasonable) subject to road occupancy licences   Temporary diversions would be put in place to allow for construction along the existing alignment.	  Q4 2018 to Q2 2019 to complete road modifications for ingress and egress   Q4 2018 to Q3 2023 including construction duration staging, temporary roads and reinstatement of roads.	Once works are complete, the road would be reopened in line with temporary design. When construction is complete, the road would be reinstated as per the permanent design.
Moodie Street at Rozelle	 Short-term, temporary closure of one lane of Moodie Street may be required during construction to facilitate utility works.	 Q4 2018 to Q3 2023.	Once construction is completed, Moodie Street would be reopened as per the existing design.
Callan Street at Rozelle	  Access to Callan Street from Victoria Road would generally remain open during construction   Temporary closures at the intersection with Victoria Road to allow for integration with the revised Victoria Road alignment may occur. Closures would be outside of peak periods where feasible and reasonable subject to road occupancy licences   During these periods, alternative access to Callan Street would be available from Springside Street and McCleer Street at Rozelle.	 Q4 2018 to Q3 2023.	Once works are completed, the road would be reopened in line with permanent design.

 

Location	Indicative road network modifications	Indicative duration1	Road reinstatement
Toelle Street at Rozelle	  Access to Toelle Street from Victoria Road would generally remain open during construction   Temporary closures at the intersection with Victoria Road to allow for integration with the revised Victoria Road alignment may occur. Closures would be outside of peak periods where feasible and reasonable subject to road occupancy licences   During these periods, alternative access to Toelle Street would be available from Springside Street, McCleer Street, Callan Street and Manning Street at Rozelle.	 Q4 2018 to Q3 2023.	Once works are completed, the road would be reopened in line with permanent design.
Clubb Street at Rozelle	  Access between Clubb Street and Victoria Road would be permanently closed and a cul-de-sac established to accommodate the revised alignment of Victoria Road   Access to Clubb Street would be available from Springside Street, McCleer Street, Callan Street and Manning Street.	 N/A (closed at the start of construction).	Access to Clubb Street from Victoria Road would be permanently closed.
Byrnes Street at Rozelle	  Short-term, temporary closure of one lane of Byrnes Street may be required during construction to facilitate utility works   Works would also be carried out to move the terminus near Victoria Road south to accommodate the revised design.	 Q1 2019 to Q4 2019.	Once utility works are completed, Byrnes Street would be reopened as per the existing layout. Once works on the cul-de-sac of Byrnes Street are complete, this section of the road would be reopened in line with the permanent design.
Pyrmont Bridge Road tunnel site (C9)	  Works would be carried out along Parramatta Road and Pyrmont Bridge Road to facilitate ingress and egress for construction traffic   Works would be carried out to realign Bignell Lane between Mallett Street and Pyrmont Bridge Road at Annandale   Short-term, temporary closure of Bignell Lane would be required during construction to allow for the realignment works   Rear-access to commercial properties along Bignell Lane would be maintained during construction.	  Q3 2018 to Q4 2018 to complete road modifications   Q3 2018 to Q3 2022 including construction duration and reinstatement of roads.	Once construction is completed, roads would be reopened in line with the permanent design (ie realigned Bignell Lane).

1 Table note: Q refers to quarter, where Q1 is January to March, Q2 is April to June, Q3 is July to September and Q4 is October to December

Traffic staging approach

The construction of major infrastructure in constrained urban environments requires detailed consideration of the staging of construction works. There are three key areas of the project which will require the preparation of detailed traffic staging plans during construction:

•   Victoria Road/The Crescent/Anzac Bridge approach intersection – reconstructing the intersection to accommodate existing connectivity, the new M4 East Motorway/Iron Cove Link to Anzac Bridge connections and construction of a new bridge at Victoria Road
•   City West Link/The Crescent intersection – realigning The Crescent at Annandale to the west, building a new bridge over Whites Creek and modifying the intersection
•  Victoria Road at Iron Cove – realigning the westbound (southern) carriageway of Victoria Road to create sufficient space to build new tunnel portals and entry and exit ramps for the Iron Cove Link.

These works would be carried out on parts of the arterial road network that are heavily trafficked and provide important network connectivity. The construction of these works would require the implementation of multiple traffic stages that meet the requirements of the construction contractor, Roads and Maritime, Transport Management Centre (TMC) and other key stakeholders.

The traffic staging would likely require the creation of temporary carriageways, intersections and bridges offline from the existing infrastructure to enable the construction of the new works and the switching of traffic.

Temporary infrastructure would be sized to adequately convey the existing traffic through the site. Temporary closure and diversions, outside of peak hours, would likely be required and would be undertaken following consultation with the TMC. Staging arrangements would be confirmed by the construction contractor during detailed design.

In preparing the traffic staging plans during construction the key considerations would include:

•   Maintaining traffic and lane capacity on the arterial road network during peak periods
•   Minimising delays to motorists utilising this part of the arterial road network
•   Undertaking the works efficiently to minimise the duration of traffic impacts
•   Maintaining the safety of motorists, members of the public and construction personnel
•   Minimising impacts on public transport services and providing alternative arrangements where necessary
•   Minimising impacts on key active transport links and providing alternative arrangements where necessary.

6.6.2 Changes to pedestrian and cyclist facilities

It is anticipated that some modifications would be needed to be made to pedestrian and cyclist facilities to facilitate construction of the project. An indicative list of these modifications is outlined in Table 6-20.

A strategy for the maintenance of pedestrian and cyclist access throughout construction would be provided as part of the CTAMP, which would be prepared during detailed design. Further information about alternative pedestrian and cyclist routes is provided in Chapter 8 (Traffic and transport) and Appendix H (Technical working paper: Traffic and transport).

 

Table 6-20 Indicative modifications to pedestrian and cyclist facilities during construction

6.6.3 Changes to the public transport network

It is anticipated that some modifications would be needed to the public transport network to facilitate construction of the project. Where bus stops are relocated, pedestrian access, including disabled facilities would be maintained.

Changes to the public transport network around the project would include:

•   The bus stops on The Crescent (northbound and southbound) at Annandale near the intersection with City West Link would be moved south towards Johnston Street to allow for realignment of The Crescent. The northbound bus stop would be permanently moved south to accommodate the new alignment. The southbound bus stop would be reinstated in generally the same location. Alternative access from The Crescent to the Rozelle Bay light rail stop would also be provided during construction
•   Three bus stops on Victoria Road at Rozelle (two on the northbound side and one on the southbound side) near the intersection with The Crescent would be relocated north to accommodate the reconstruction of Victoria Road. These bus stops would be reinstated in generally the same location at the completion of construction
•   Two bus stops on Victoria Road near Iron Cove Bridge at Rozelle would be temporarily relocated to allow for the widening works along Victoria Road. The bus stop on the eastbound side is currently located between Terry Street and Crystal Lane at Rozelle. The bus stop on the westbound side is currently located between Toelle Street and Callan Street at Rozelle. It is anticipated that these bus stops would be temporarily relocated to the east during construction and would be reinstated in generally the same location at the completion of construction.

   

Pedestrian access to the Leichhardt North light rail stop at Leichhardt and the Rozelle Bay light rail stop at Annandale would be maintained during construction and operation. The project would also deliver an improved pedestrian connection to the Rozelle Bay light rail stop as part of the permanent design (refer to Chapter 5 (Project description)). An assessment of the impacts of the project on the public transport network during construction and operation is provided in Chapter 8 (Traffic and transport).

The proposed modifications would be reviewed during detailed design with the objective of minimising disruptions to public transport services and customers. Any bus stop relocations would be agreed with Transport for NSW and all affected bus operators. Details on the integration of the project with the public transport network are provided in Chapter 5 (Project description).

6.6.4 Access routes and vehicle numbers

The proposed access to the construction sites is summarised in Table 6-21. Wherever possible, access is proposed to be gained directly from major arterial roads. Some use of local roads by heavy vehicles delivering materials and/or equipment may also be required, however this would be minimised as far as practicable. Table 6-22 sets out estimated daily construction vehicle numbers in the ‘worst case scenario’. Details about construction hours, including hours during which spoil haulage would occur, are provided in section 6.7.2.

Access routes would be documented in the CTAMP. Further information relating to haulage routes, construction traffic impacts and mitigation is provided in Chapter 8 (Traffic and transport). Indicative access routes to and from construction ancillary facilities would be confirmed during detailed design and documented in the CTAMP that would be prepared for the project.

The use of a marshalling area(s) for spoil trucks would be investigated to further assist in staggering the arrival of vehicles to site. This would be located in a non-residential area and in close proximity to the arterial road network and construction ancillary facilities where tunnelling would occur. This measure would assist in preventing queuing and parking of heavy vehicles on local roads in the vicinity of the project. Marshalling area(s) and provisions for their use would be identified in the CTAMP.

Table 6-21 Indicative access routes to and from construction ancillary facilities

6.6.5 Spoil haulage routes

Excess spoil that cannot be reused within the project would require off-site reuse/disposal. Around 95 per cent of uncontaminated spoil would be beneficially reused in accordance with the project spoil management hierarchy. Further information is provided in Chapter 23 (Resource use and waste minimisation).

It is anticipated that spoil would be hauled using heavy vehicles to spoil reuse and disposal sites. The indicative spoil haulage routes are described in Table 6-23 and shown in Figure 6-26 to Figure 6-31.

Table 6-23 Indicative spoil haulage routes

Location Indicative spoil haulage route
C1a	Wattle Street civil and tunnel site1  Entry: via the Wattle Street interchange entry ramp  Exit: via the Wattle Street interchange exit ramp and onto Parramatta Road, heading west.
C2a	Haberfield civil and tunnel site1  Entry and exit via the M4 East tunnel connection.
C3a	Northcote Street civil site No spoil haulage would occur from this site.
C1b	Parramatta Road West civil and  tunnel site Entry: eastbound along the M4 Motorway, southbound along Centenary Drive, eastbound along the Hume Highway, then left onto Parramatta Road heading north  Exit: northbound along Parramatta Road.
C2b	Haberfield civil site No spoil haulage would occur from this site.
C3b	Parramatta Road East civil site No spoil haulage would occur from this site.
C4	Darley Road civil and tunnel site  Entry: via City West Link and Darley Road  Exit: via Darley Road and then City West Link.
C5	Rozelle civil and tunnel site1  Entry: eastbound along City West Link and into the site  Exit: westbound along City West Link.
C6	The Crescent civil site  Entry: City West Link, then south along The Crescent and into the site  Exit: northbound along The Crescent (to be facilitated via construction traffic management measures), then City West Link.
C7	Victoria Road civil site No spoil haulage would occur from this site.
C8	Iron Cove Link civil site  Entry: northbound along Victoria Road and into the site  Exit: northbound along Victoria Road.
C9	Pyrmont Bridge Road tunnel site1  Entry: eastbound along Parramatta Road and into the site  Exit: westbound along Pyrmont Bridge Road and then Parramatta Road.
C10	Campbell Road civil and tunnel  Entry: southbound along Campbell Road and then site1 into the site  Exit: northbound along Campbell Road, then south along the Princes Highway.

Note:
1 Indicative spoil haulage routes may vary based on the final construction methodology and program.

Where spoil haulage is carried out outside of the standard daytime construction hours, reasonable and feasible work practices and mitigation measures, consistent with the requirements of the Interim Construction Noise Guideline (DECCW 2009a), would be implemented to manage potential noise impacts, especially late night vehicle movements past sensitive receptors.

Further details regarding spoil generation and management are provided in Chapter 8 (Traffic and transport). Construction traffic and noise impacts that arise from spoil haulage are assessed in Chapter 8 (Traffic and transport) and Chapter 10 (Noise and vibration) respectively.

 

Other disposal/reuse sites may be used depending on need at the time spoil is generated. In addition, there is the potential that spoil could be removed by barge, subject to further investigations.

The proposed haulage routes would not always meet all of the transport requirements of the project. Therefore, alternative haulage routes would be available for spoil trucks under ‘exceptional circumstances’, which may include:

•   Queuing of heavy vehicles onsite, requiring other heavy vehicles to temporarily bypass construction ancillary facility sites to prevent possible queuing on public roads while they wait to access the site
•   Road works or an accident/incident that prevents heavy vehicles from accessing or travelling on the designated haulage route
•   A designated traffic manager for the project determines that a temporary hazard (eg illegally parked vehicle, a lost vehicle load or floodwater) requires a heavy vehicle(s) to bypass an access gate or designated route to avoid causing damage to public and/or private property
•   During temporary road closures.

Table 6-24 identifies alternative routes that may be used during ‘exceptional circumstances’. These alternative routes may vary depending on the final construction methodology. Alternative routes would avoid the use of local roads where practicable. The use of alternative routes would be in accordance with relevant conditions of approval.

Table 6-24 Alternative spoil haulage routes (during exceptional circumstances)

Construction ancillary facility	Alternative spoil haulage routes (during exceptional circumstances)
Wattle Street civil and tunnel site (C1a)	  East on Wattle Street towards City West Link then Victoria Road (to the north via The Crescent)   East on Wattle Street towards City West Link, then Anzac Bridge and the Western Distributor (via The Crescent and Victoria Road)
Haberfield civil and tunnel site (C2a)	No alternative route proposed
Parramatta Road West civil and tunnel site (C1b)	 Entry: Southbound on Parramatta Road, left into Tebbutt Street, left into Hathern Street, left into Brown Street left into Cook Street, left into Old Canterbury Road and left back onto Parramatta Road towards the site
Darley Road civil and tunnel site (C4)	  East on City West Link then Victoria Road (to the north via The Crescent)   East on City West Link, then Anzac Bridge and the Western Distributor
Rozelle civil and tunnel site (C5)	  East on City West Link then Victoria Road   East on City West Link, then Anzac Bridge and the Western Distributor (via The Crescent and Victoria Road)
The Crescent civil site (C6)	  Johnston Street then Parramatta Road   The Crescent, Ross Street and Pyrmont Bridge Road
Iron Cove Link civil site (C8)	No alternative route proposed
Pyrmont Bridge Road tunnel site (C9)	  Pyrmont Bridge Road towards Ross Street, then The Crescent and City West Link   Parramatta Road then Old Canterbury Road
Campbell Road civil and tunnel site (C10)	 Campbell Street then Princes Highway and Sydney Park Road

6.6.6 Construction workforce parking

A number of the project’s staff and labour force would be expected to drive to construction sites and would therefore require car parking. The numbers of construction personnel requiring parking would vary over the duration of the construction program.

It is anticipated that construction workforce parking would be primarily provided at the following sites:

•  Northcote Street civil site (C3a) – around 150 car parking spaces (Option A)
•  Parramatta Road East civil site (C3b) – around 140 car parking spaces (Option B)
•  Rozelle civil and tunnel site (C5) – around 400 car parking spaces
•  Campbell Road civil and tunnel site (C10) – around 150 car parking spaces.

These facilities would be used to provide worker parking and shuttle bus transfers to other nearby construction sites.

Due to the generally constrained nature of the other construction sites, only minimal car parking for construction workers would be provided at these locations. Typically, these sites would provide between four to 20 parking spaces intended to be used by engineers and other construction management staff. Some parking of construction-related vehicles in adjacent local roads would occur, particularly during site establishment. The potential impacts on on-street parking in areas adjacent to the project footprint have been considered further in Appendix H (Technical working paper: Traffic and transport) and Chapter 8 (Traffic and transport).

The construction workforce would be encouraged to use public transport. Victoria Road and Parramatta Road are major transport corridors that have multiple bus routes. The Inner West Light Rail line runs along the southern side of City West Link with stops near the Rozelle Rail Yards at Rozelle Bay and Lilyfield; and at the Darley Road civil and tunnel site (Leichhardt North light rail stop). The T3 Bankstown Line stops at St Peters Station around 800 metres north of the Campbell Road civil and tunnel site.

Measures to manage parking impacts in adjacent streets would be addressed in a car parking strategy, included in the CTAMP. This would be developed prior to the commencement of establishment and use of construction ancillary facilities. This would include the identification of areas where there are high levels of existing parking demand around the construction ancillary facilities and works sites and identifying alternative car parking sites for use by the construction workforce.

6.7 Construction workforce numbers and work hours

6.7.1 Construction workforce

The indicative peak construction workforce at each site is detailed in Table 6-25. Peaks at each construction location do not necessarily occur at the same time, so these numbers cannot be added together to give a whole of project peak workforce number.

The construction workforce would comprise trades and construction personnel, subcontract construction personnel and engineering, functional and administrative staff. The size of the workforce would vary across the working day with a reduction in personnel for the evening and night shifts. The total peak workforce is around 1,500 personnel.

 

Table 6-25 Peak construction workforce estimates

Site name/location	Approximate day shift peak construction workforce	Approximate afternoon shift peak construction workforce	Approximate night shift peak construction workforce
Wattle Street civil and tunnel site (C1a)	70	30	70
Haberfield civil and tunnel site (C2a)	130	45	85
Northcote Street civil site (C3a)	50	30	10
Parramatta Road West civil and tunnel site (C1b)	140	40	90
Haberfield civil site (C2b)	30	10	0
Parramatta Road East civil site (C3b)	10	10	10
Darley Road civil and tunnel site (C4)	100	30	0
Rozelle civil and tunnel site (C5)	500	200	200
The Crescent civil site (C6)	50	30	50
Victoria Road civil site (C7)	200	0	0
Iron Cove Link civil site (C8)	200	0	0
Pyrmont Bridge Road tunnel site (C9)	100	30	100
Campbell Road civil and tunnel site (C10)	100	30	100
Total	1,530	435	615

6.7.2 Construction hours

Proposed construction hours are shown in Table 6-26. These hours have been developed based on a balanced consideration of reducing the overall length of the construction program and the need to minimise noise and traffic related impacts. Construction activities required for the project would be managed in six broad categories:

•   Tunnelling and tunnelling support activities, including spoil handling and haulage, deliveries and underground construction and fitout works. These activities would be carried out up to 24 hours a day and seven days a week
•   Out-of-hours construction activities that cannot be conducted during standard construction hours for safety or traffic operational reasons. These activities would include integration works with the M4 East and New M5 projects) and works affecting parts of the surface road network subject to high traffic volumes
•   Most other construction activities, which would be carried out within standard construction hours (see below)
•   Blasting and rock breaking, which would be conducted within reduced construction hours and subject to provision of respite periods
•   Minor or ancillary activities that would not result in noise levels at receivers above acceptable levels, or are otherwise authorised by an environmental protection licence under the Protection of the Environment Operations Act 1997 (NSW) (POEO Act)
•   Activities that are required to be conducted under direction from a relevant authority (such as Police) or are required to prevent an imminent loss of life or environmental damage.

Above ground construction works would be undertaken in accordance with the ICNG. The majority of these would occur during the standard working hours of between:

•   7.00 am and 6.00 pm Monday to Friday
•   8.00 am and 1.00 pm on Saturdays

 

. Table 6-26 Construction hours

Activity	Construction hours	Comments or exception
Tunnelling, tunnelling support and underground construction activities
Tunnelling and underground excavation	24 hours a day, up to seven days a week.	 Activities that support tunnelling works may need to occur 24 hours a day, up to seven days a week.
Underground construction and tunnel fitout	24 hours a day, up to seven days a week.	  Activities that support underground construction and tunnel fitout would occur 24 hours a day, up to seven days a week   Deliveries for underground construction and tunnel fitout would occur 24 hours a day, up to seven days a week.
Surface construction activities
Demolition and surface construction activities	7.00 am to 6.00 pm on weekdays, 8.00 am to 1.00 pm on Saturdays, no works on Sundays or public holidays.	  Aboveground work supporting underground construction activities (eg concrete pumping, truck loading) are expected to be required 24 hours a day, up to seven days per-week where noise mitigation is in place   Non-disruptive preparatory work, repairs or maintenance may be carried out outside standard daytime construction hours   Activities requiring the temporary possession of roads or to accommodate road network requirements may need to be carried out outside the standard daytime construction hours during periods of low traffic volumes to minimise safety impacts and inconvenience to road users.
Construction traffic for material supply and spoil removal
Construction traffic for material supply to, and spoil removal from, tunnelling and underground excavation	24 hours a day, up to seven days a week.	 Spoil removal from the Darley Road civil and tunnel site (C4) would only occur during standard daytime construction hours. No spoil would be removed from this site on Sundays or public holidays.
Blasting and rock breaking
Blasting	Between 9.00 am and 5.00 pm, Mondays to Fridays and 9.00 am to 1.00 pm on Saturdays.	 Blasting would occur up to six days a week (Monday to Saturday). Blasts would be limited to one single detonation in any one day per receiver group, unless otherwise agreed by the Secretary or the NSW EPA.
Rock breaking (with potential for impulsive or tonal noise impact at a sensitive receiver)	Between 8.00 am and 6.00 pm Monday to Friday and 8.00 am to 1.00 pm Saturdays, with respite periods.	  Respite periods would be scheduled to minimise the frequency and duration of extended rock breaking activities with potential for impulsive or tonal noise emissions   Rock breaking and other high impact noise activities could also occur outside these standard day time construction hours if authorised by an environmental protection licence.

 

Activity	Construction hours	Comments or exception
Minor or ancillary activities
Minor activities	At any time.	 Minor activities would include activities that do not lead to an exceedance of the applicable noise management level at an affected receiver.
Activities authorised by an environment protection licence	As specified in the environment protection licence.	 Construction activities would be managed as required by the Environment Protection Licence.
Emergency or directed activities
Emergency or directed activities	At any time.	  Activities would be carried out as directed by a relevant authority   Activities would be carried out if required to prevent an imminent loss of life or environmental damage.

A summary of the proposed construction work hours at each construction ancillary facility is provided in Table 6-27.

Table 6-27 Construction work hours at construction ancillary facilities

Construction ancillary facility	Type of construction activity	Construction work hours
Wattle Street civil and tunnel site (C1a)	Tunnelling and spoil handling	 24 hours a day, seven days a week
	Civil construction1	  7.00 am to 6.00 pm Monday to Friday   8.00 am to 1.00 pm Saturdays
Haberfield civil and tunnel site (C2a)	Tunnelling and spoil handling	 24 hours a day, seven days a week
	Civil construction1	  7.00 am to 6.00 pm Monday to Friday   8.00 am to 1.00 pm Saturdays
Northcote Street civil site (C3a)	Civil construction1	  7.00 am to 6.00 pm Monday to Friday   8.00 am to 1.00 pm Saturdays
	Construction workforce parking	 24 hours a day, seven days a week
Parramatta Road West civil and tunnel site (C1b)	Tunnelling and spoil handling	 24 hours a day, seven days a week
	Civil construction1	  7.00 am to 6.00 pm Monday to Friday   8.00 am to 1.00 pm Saturdays
Haberfield civil site (C2b)	Civil construction1	  7.00 am to 6.00 pm Monday to Friday   8.00 am to 1.00 pm Saturdays
Parramatta Road East civil site (C3b)	Civil construction1	  7.00 am to 6.00 pm Monday to Friday   8.00 am to 1.00 pm Saturdays
	Construction workforce parking	 24 hours a day, seven days a week
Darley Road civil and tunnel site (C4)	Tunnelling and spoil handling2	 24 hours a day, seven days a week
	Civil construction1	  7.00 am to 6.00 pm Monday to Friday   8.00 am to 1.00 pm Saturdays
Rozelle civil and tunnel site (C5)	Tunnelling and spoil handling	 24 hours a day, seven days a week
	Civil construction1	  7.00 am to 6.00 pm Monday to Friday   8.00 am to 1.00 pm Saturdays
The Crescent civil site (C6)	Civil construction1	  7.00 am to 6.00 pm Monday to Friday   8.00 am to 1.00 pm Saturdays
Victoria Road civil site (C7)	Civil construction1	  7.00 am to 6.00 pm Monday to Friday   8.00 am to 1.00 pm Saturdays
Iron Cove Link civil site (C8)	Civil construction1	  7.00 am to 6.00 pm Monday to Friday   8.00 am to 1.00 pm Saturdays

 

Construction ancillary facility	Type of construction activity	Construction work hours
Pyrmont Bridge Road tunnel site (C9)	Tunnelling and spoil handling	 24 hours a day, seven days a week
	Civil construction1	  7.00 am to 6.00 pm Monday to Friday   8.00 am to 1.00 pm Saturdays
Campbell Road civil and tunnel site (C10)	Tunnelling and spoil handling	 24 hours a day, seven days a week
	Civil construction1	  7.00 am to 6.00 pm Monday to Friday   8.00 am to 1.00 pm Saturdays

Notes:  Works outside of standard construction hours. Other activities that would be carried out outside of the standard daytime construction hours would include:

•   Work determined to comply with the relevant noise management level at the nearest sensitive receiver
•   The delivery of materials outside approved hours as required by the NSW Police or other authorities (including Roads and Maritime) for safety reasons
•   Emergency situations where it is required to avoid the loss of lives and property and/or to prevent environmental harm
•   Situations where agreement is reached with affected receivers.

With the exception of emergencies, activities would not take place outside standard daytime

construction hours without prior notification of the local community affected.

An assessment of potential noise impacts associated with construction of the project as well as management measures, including for works outside of standard construction hours is included in Chapter 10 (Noise and vibration). Reasonable and feasible work practices and mitigation measures, consistent with the requirements of the ICNG would be implemented to manage potential noise impacts. These would be identified in a Construction Noise and Vibration Management Plan that will include:

•   Identification of nearby residences and other sensitive land uses
•   Description of approved work hours
•   Description and identification of all construction activities, including work areas, equipment and duration
•   Description of the work practices (generic and specific) that will be implemented to minimise noise and vibration
•   A complaints handling process
•   Noise and vibration monitoring procedures
•  Overview of community consultation required for identified high impact works.

In addition, environmental management measures will also be applied for out-of-hours surface works (refer to Chapter 10 (Noise and vibration).

6.8 Construction noise attenuation

Temporary noise attenuation at construction ancillary facilities may include:

•   Temporary acoustic hoarding along the boundaries of construction ancillary facilities at locations that face sensitive receivers
•   Acoustic sheds around temporary access tunnels and associated above ground spoil handling areas where out-of-hours works would be undertaken near sensitive receivers, including:
  •   Parramatta Road West civil and tunnel site (C1b)
  •   Darley Road civil and tunnel site (C4)
  •   Rozelle civil and tunnel site (C5)
  •   Pyrmont Bridge Road tunnel site (C9)
  •   Campbell Road civil and tunnel site (C10).

    In addition, spoil stockpiling and management would occur within cut-and-cover tunnel structures at the Wattle Street civil and tunnel site (C1a), at the eastern end of the Rozelle civil and tunnel site (C5) and the Campbell Road civil and tunnel site (C10), and within the M4 East stub tunnels at Haberfield. Acoustic barriers (or similar) and other acoustic treatments would be installed as required to reduce noise propagation to adjacent areas from cut-and-cover tunnel structures.

    The construction noise assessment tables which summarise the construction noise impacts predicted from each construction ancillary facility are provided in Chapter 10 (Noise and vibration).

6.9 Construction plant and equipment

The plant and equipment listed in Table 6-28 is planned to be used during the construction of the project. The actual plant and equipment would be confirmed during detailed design, taking into account any requirements of the environmental planning approval for the project.

Table 6-28 Indicative construction plant and equipment

6.10 Construction waste management

Details relating to construction waste management are provided in Chapter 23 (Resource use and waste minimisation).

6.11 Construction resource use and management

Details relating to the use of construction materials, construction energy use and construction water use are provided in Chapter 23 (Resource use and waste minimisation).

 

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