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View F6 Extension Stage 1 project area
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Traffic and transport
Following your feedback to the EIS, changes have been made to traffic and access around President Avenue to improve traffic flow with less stopping and starting.
Find out more about air quality for the project during construction and operation.
Noise and vibration
See how noise is managed with an acoustic shed
Landscape, visual and biodiversity
View landscape plans for enhancing visual amenity
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- Twin four kilometres tunnels linking the New M5 at Arncliffe to President Avenue at Kogarah
- New intersection at President Avenue with entry and exit ramps connecting the tunnel to the surface road
- Tunnels stub for a future connection south
- New shared cycle and pedestrian pathways including a new pedestrian bridge across President Avenue
- Upgrade of President Avenue/Princes Highway intersection
- Motorway support infrastructure including tunnel ventilation systems and motorway control centre
Construction will take around four years to complete.
The main construction sites will be located at Arncliffe (Marsh Street), President Avenue (within an area of Bicentennial Park) and Rockdale (West Botany Street).
Investigations and site establishment will occur before tunnelling and surface earthworks begin.
Permanent operational infrastructure will be built as well as drainage and water management facilities. Road pavement and finishing works will occur at the end of the project.
Construction noise at tunnelling sites will be minimised with acoustic sheds where spoil will be managed.
Monday to Friday 7am to 6pm
Saturdays 8am to 1pm
Some construction activities need to be carried out outside of these hours. This includes 24 hour a day tunnelling as well as other work for safety reasons, to prevent traffic congestion on major roads during peak periods, or for particular construction requirements.
Indicative construction program
Arncliffe construction site
Rockdale construction site
President Avenue construction site
Shared pedestrian and cycle pathways
Princes Highway construction site
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Traffic impacts at the President Avenue intersection and other construction sites will result in temporary lane closures, detours and delays.
There will be temporary loss of on-street parking at O’Neill Street, Civic Avenue, West Botany Street and President Avenue and the Bicentennial Park car park will be temporarily closed.
A Construction Traffic and Access Management Plan will be implemented and road closures will be minimised. Transport movements will be scheduled outside peak travel times, wherever possible.
Traffic will reduce on the Princes Highway, West Botany Street and General Holmes Drive while congestion may increase along President Avenue. Bus travel times will improve.
A new shared cycle and pedestrian pathway from Bestic Street to Civic Avenue will link the Cook Park cycleway with a new shared cyclist and pedestrian bridge over President Avenue.
A Construction Air Quality Management Plan will be implemented to minimise potential air quality impacts. This includes measures to minimise dust from stockpiles, reduce vehicle emissions and modify dust generating activities during windy weather conditions.
Analysis shows the tunnel ventilation system meets in-tunnel air quality criteria for all expected traffic scenarios.
The F6 Extension Stage 1 ventilation outlets will require an Environmental Protection Licence issued by the NSW Environmental Protection Authority to regulate any emissions against strict controls and criteria.
Under expected traffic conditions for the project, the predicted contribution of tunnel ventilation outlets to local air quality is negligible. Any predicted changes in concentrations were driven by changes in the traffic volumes on the modelled surface road network, not by the tunnel ventilation outlets.
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Residents close to each construction site may be impacted by noise and, where possible, construction work will be limited to standard hours. However, during tunnelling, work will continue 24 hours a day.
Residents at the Princes Highway/President Avenue intersection may experience noise impacts during night work to upgrade the intersection, which is required to minimise traffic impacts and for the safety of workers and the public.
Traffic noise due to earth moving and construction equipment, spoil haulage, collection and delivery of materials and traffic movements by construction workers is not expected to casue major disturbances.
A Construction Noise and Vibration Management Plan will be implemented and two acoustic sheds will be built to facilitate spoil haulage removal. Where feasible, noise barriers will be installed at construction sites to reduce noise impacts. Roads and Maritime will work closely with local residents and stakeholders to minimise the impact of noise and vibration on their day to day activities.
Some residents will be impacted by very small increases in road traffic noise and may require treatment to their homes as a result. Residents eligible for treatment will be contacted directly to implement these measures. Within 12 months of the tunnel opening, actual operational noise will be compared to predicted noise to determine the need for additional noise mitigation or management measures.
Landscape and visual
Impacts on Bicentennial Park include the relocation of the playground, skate park and sporting fields which will be reinstated once the project is complete. Some mature trees around President Avenue will be removed. The ventilation facility at West Botany Street may be visible from some residential areas, parks and streets when compared with surrounding buildings.
Planting and vegetation will be similar to the surrounding wetlands and recreational open spaces. Trees will be planted along President Avenue and the wetland pond will be restored. The shared pedestrian and cycle pathway will complement the surrounding landscape.
Assessments identified reveal the presence of common native urban fauna in Bicentennial Park however no Green and Golden Bell frog or Southern Myotis bats where found during surveys.
The waterway in Bicentennial Park will be diverted to maintain water flow, however there will be a temporary loss of aquatic and riparian habitat.
Mature trees and other vegetation will need to be cleared, but wetlands and vegetated area, including replacement trees, will be replaced after construction.
A Flora and Fauna Management Plan will be implemented during construction.
The New M5 motorway Green and Golden Bell Frog Management Plan and Flora and Fauna Management Plan will continue to operate at the Arncliffe construction site.