Redcliffe Community Zone
With the completion of excavation at Redcliffe Station, work has begun to waterproof the station box. The first step is the installation of a blinding concrete layer, followed by a waterproof membrane and a protection screed.
Once waterproofing concludes construction of the base slab will begin. This involves steel reinforcement and pouring 5500m3 of concrete.
The works that will occur over the next few months in association with concrete pouring are time-critical. For these and associated tasks, some out of hours works may be required as when a pour starts it must continue until finished. While every effort will be made to finish the pours by 7pm, there may be times when works must continue until 9pm.
All concrete pours are weather dependent and as such the schedule for the pours is subject to change:
- Pour 1 - Thursday 16 (complete)
- Pour 2 - Thursday 30
- Pour 3 - Tuesday 11
- Pour 4 - Tuesday 25
- Pour 5 - Tuesday 2
- Pour 6 - Thursday 11
- Pour 7 - Monday 22
- Pour 8 - Thursday 1
- Pour 9 - Monday 12
Dewatering and environmental testing
Through routine environmental investigations for the construction of Redcliffe Station, the Public Transport Authority (PTA) has discovered perfluoroalkyl and polyfluoroalkyl substances (PFAS) in the groundwater. PFAS are manufactured compounds that have been used in certain types of firefighting foams and a range of consumer products, including non-stick cookware, fabric treatments, furniture and carpet stain protection, and food packaging since the 1950s. Environmental contamination by PFAS is an emerging challenge worldwide, and in WA is starting to be reported at various sites.
PTA has reported the results from the project’s environmental testing to the Department of Water and Environmental Regulation (DWER), the state regulatory agency. The presence of PFAS at the site has not been caused by the Forrestfield-Airport Link project and during the dewatering process, a strict management and monitoring regime has been in place to ensure PFAS is not spread.
The six-month dewatering program began in February 2018, with the target level reached in March. Three of the six dewatering wells installed are currently in operation, with the water pumped into four reinjection bores outside the station box.
Water levels are closely monitored and have remained within 1m of the recorded groundwater levels for the area. Dewatering will be ongoing until late August.
To find out more, view the Redcliffe Station dewatering fact sheet.
Frequently Asked Questions