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Metro Tunnel

Franklin and A'Beckett Streets works underway

Work has begun in the CBD in preparation for major construction for the Metro Tunnel Project.

These works include site establishment, tree and vegetation removal, relocation and protection of underground utility services such as water, gas, power and telecommunications and shaft construction for the new rail tunnels and CBD underground station with direct connections to Melbourne Central Station.

Franklin and A'Beckett Street will be closed for five years.

Site establishment

Additional site establishment work will be undertaken on A'Beckett Street:

  • from early-mid May on A'Beckett Street - between Swanston Street and Stewart Street
  • Service investigations and relocations on Franklin Street between Swanston Street and Victoria Street have been completed

Gantries

Gantries will create an enclosed and well lit pedestrian walkway that provides a safety barrier between pedestrians and the construction site. These will be erected on the current walkways on the south side of Franklin Street and the north side of A'Beckett Street. A gantry is already in place on the north side of Franklin Street.

Piling works

Shaft construction will start with bored piling works at the Franklin Street site from Monday 10 April, and in May at the A'Beckett Street site. Piling will take up to four months to complete at each site.

Bored piling requires a piling rig to drill a steel lining into the ground to create a hole and removing spoil material from within the steel liner. Once the hole is excavated, a steel prefabricated reinforcement cage is placed within. Concrete is then poured into the hole to form the pile and once the concrete sets, the bored pile is complete.

100 piles will be constructed at the Franklin Street shaft site, and 76 piles will be constructed at the A'Beckett Street shaft site.

The other activities include:

  • Delivery, unloading, and assembly of steel reinforcing cages 
  • Extracting spoil from the excavated bored holes
  • Concrete trucks moving onto site regularly to assist pours for newly excavated piles.

What to expect

Noise and vibration can result from a range of activities and equipment used during pile construction. Common sources of noise include heavy machinery, trucks, piling rigs, power tools and broadband reversing beepers on mobile equipment.

The amount of noise on a construction site may vary at any given time depending on the activities being carried out, however we are required to employ mitigation strategies that comply with the Metro Tunnel's Environmental Performance Requirements (EPRs) to minimise disruption to the community.

Equipment laydown areas

Equipment laydown areas are being established at Franklin Street - between Swanston Street and Elizabeth Street - and A'Beckett Street on the RMIT half basketball courts and surrounding footpath and road.

These areas will be used to store machinery and equipment for the duration of the Metro Tunnel Project and will support the construction of the shafts and future tunnel works.

Tree removal

A limited number of trees will be removed from the CBD North sites to facilitate construction of the new station

Where possible, timber from the removed trees will be re-used by City of Melbourne. Some mulching will take place on site.

MMRA will replant two trees for every tree we remove on the project, to enhance long term canopy cover.

CBD North enabling works

Service relocations

Service relocation works are continuing in CBD North. These works will be delivered during the night to ensure minimal disruption to roads and footpaths.

Service relocation works are expected to be completed by July 2017

On Franklin Street - between Victoria Street and Swanston Street - the following service relocations are complete or currently in progress:

  • The new drainage and water services have been laid using the open-cut trenching method on the north side of Franklin Street. The trench will be backfilled and the area reinstated in late March
  • Gas works on Victoria Street and Swanston Street commenced in early-March and will continue until late April. This work will be completed at night between 9pm-5am. This will be completed by June 2017

On A'Beckett Street, the following works are underway:

  • Telecommunication relocation has commenced on Swanston Street and A'Beckett Street
  • Relocation of high voltage and low voltage electrical assets.

The additional planned service relocations still to be completed include:

  • Night works for gas installation on Franklin Street, A'Beckett Street and Stewart Street starting in April are expected to be completed by May

CBD  North service relocations

Hours of work

The majority of work will take place during normal working hours.

  • 7am – 11pm, Monday to Friday
  • 7am – 1pm, Saturdays

Work outside of these hours may be required to complete certain activities.

  • When out of hours works are required, we will notify local residents and businesses in advance of these works occurring
  • All reasonable efforts will be made to complete works ahead of schedule, subject to weather and ground conditions
  • We will notify residents and businesses if there are any significant changes to the program.

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What to be aware of

  • There will be temporary changes to traffic conditions in the local area. These changes will vary depending on the works. The community will be notified in advance of these changes.
  • Traffic management will be in place during construction to maintain the flow of traffic and ensure the safety of work crews and pedestrians.
  • Any required changes to the road network will be communicated in advance of the works using a range of communication tools.
  • There may be some noise and dust associated with these works. Mitigation strategies which comply with the Metro Tunnel's Environmental Performance Requirements (EPRs) will be put in place to minimise disruption to the community.
  • MMRA will replant at least two trees for every tree removed for construction of the Metro Tunnel to enhance long term canopy cover across the Metro Tunnel project. A project arborist will be on site to ensure that tree protection measures are put in place and supervise all works occurring within designated Tree Protection Zones.