Bayswater Community Zone
A few changes have occurred at Bayswater Junction in the last month, including the completion of the dry box. The dry box is located adjacent to the dive portal and it is designed to correctly pressurise the TBMs’ final break-throughs into Bayswater
The design showing how Bayswater Junction will link to Whatley Crescent has now been finalised. The key elements of the design include the new cycle path, retaining walls and noise walls. View a detailed map for more information on the design.
Excavation of the 400m long dive structure is ongoing with the Midland Line overpass now fully excavated and water blasting of the d-walls underneath the overpass in progress. The overpass will enable the city-bound Midland Line to cross over the Forrestfield Line.
To date, more than 30,000 tonnes of soil have been removed from the dive structure which will form the entry/exit point to the tunnels for trains. The surplus Bassendean Sand, which can be found up to a depth of eight metres, is being transported to Forrestfield where it is used to backfill the station’s retaining wall. It is expected that 90,000 tonnes of material will be reused at Forrestfield by the end of the year, addressing a key component of the project’s sustainability program. Excavation is scheduled to be completed late-2018.
The next major activity will be the construction of the dive structure base slab which includes waterproofing and sealing, followed by 18 separate concrete pours requiring 4050 cubic metres of concrete in total. Of the 18 pours four are scheduled to be completed before the end of the year. Due to the complexity of each pour, works are required to start early guaranteeing minimal disruption from traffic. Once a pour begins it needs to continue until completed. On the day of the pours, work will begin from 4am and continue during normal construction hours, finishing at 7pm. Out of hours approval has been received from the City of Bayswater. The dates of each of the pours may change depending on weather conditions and construction schedules.
- Pour 1 - Friday 23 (complete)
- Pour 2 - Wednesday 28 (complete)
- Pour 3 - Friday 7 (complete)
- Pour 4 - Tuesday 18
The large retaining wall built adjacent to Railway Parade to support the temporary Midland Line has been turned into a piece of art thanks to PTA's Right Track program. Perth urban artist Drew Straker, in conjunction with 75 up-and-coming junior artists, completed the work of art inspired by native animals and WA landscapes. The mural, 500m in length, is the longest of its kind in WA and one of the longest in the Southern Hemisphere.