The first stage of the F6 extension will eat into soccer fields in Bicentennial Park East.
However, contrary to previous indications, Brighton Memorial Playing Fields, will not be impacted.
An updated project overview confirmed the four kilometre twin tunnels will swing around from the WestConnex at Arncliffe beneath Banksia and Rockdale and emerge through the soccer fields at President Avenue, Kogarah.
A connecting tunnel stub for stage two to Taren Point is located south of Bay Street, Rockdale.
Community facilities in Rockdale Bicentennial Park, including the skate park, play area and barbeque equipment, will need to be relocated during construction.
The document said this would be done in consultation with Bayside Council, local sporting clubs and other interested stakeholders through the Stakeholder Liaison Group.
“There are no plans to impact either the Ilinden Sports Centre playing field or Brighton Memorial Playing Fields,” the document said.
“The ‘cut and cover’ section of the tunnel will need to pass around five metres underneath the waterway in Rockdale Bicentennial Park.
“To construct this it will be necessary to temporarily divert the course of the waterway.
“This will also require the removal of the existing pedestrian bridge across the waterway.
“The temporary diversion will be designed to maintain water levels in the existing waterway, as well as minimise the risk of potential flood events.”
“The temporary diversion will be closely monitored to ensure there is no impact on existing aquatic life.
“Once construction work has been completed the waterway will be restored and the bridge reinstated.”
O’Neill Street at Kogarah will become a cul-de-sac because of its proximity to intersection of the F6 and President Avenue.
The document said the southern ventilation outlet will be located in the industrial zone on West Botany Street, Rockdale, while the northern “stack” will be integrated with the ventilation facilities for the New M5 Motorway near the Marsh Street intersection.
A dedicated cycle-pedestrian bridge over President Avenue is proposed as part of new shared paths starting from the existing cycleway at Muddy Creek next to Bestic Street, Brighton-Le-Sands, connecting south through Bicentennial Park.
“The pathways will be a combination of exclusive use off-road facilities through parklands as well as shared use and on road facilities along local roads,” the document said.
“[They] will intersect with several existing and proposed east-west paths.”