Forrestfield-Airport Link · “L” shaped reinforced concrete cantilever wall. Heights range from...
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BAYSWATER JUNCTION WHAT’S HAPPENING IN MY ZONE? Forrestfield-Airport Link METRONET BAYSWATER JUNCTION Retaining walls and noise walls will be constructed from materials that will be coated with anti-graffiti paint and can be easily cleaned. The final landscaping package will consider if vegetation can be used to screen some of the walls. Plants growing on the walls cannot be considered as this will increase ongoing maintenance requirements. Further information, including community consultation on colour selections of the anti- graffiti finish and the landscaping design, will be provided mid-2019. Issue#7 | November 2018 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. More information on these is provided below, as well as overleaf. Given the limited space and a commitment to keeping as many trees as possible, the design has undergone a number of revisions. Despite all efforts, it has not been possible to fit all required elements within the rail corridor. As a result, some tree removal is required. Following detailed reports from an arborist and consultation with City of Bayswater, 12 trees need to be removed due to their location within the construction boundary and two due to poor health. This has been reduced significantly from the 50 trees originally identified for removal in earlier designs. The trees will be offset in a 2:1 ratio, with new planting of a similar type of tree to occur within the verge at the completion of the works or at another location, to be determined by the City. Retaining walls With the varying heights between the road, path and rail, retaining walls are required along sections of Whatley Crescent. The retaining walls will be built in stages from November 2018 to mid-2019 and range from 1.1m to 3.7m in height. More information overleaf. Noise walls An acoustic analysis has been undertaken to determine the noise walls required to reduce noise levels at adjacent properties. The position and height of the walls is based on this analysis and is designed to meet noise compliance requirements for the operational lines. Web dampeners will also be used on the rail lines, which has helped to reduce the height and extent of noise walls required. More information is provided overleaf. Construction of the noise walls is anticipated to begin mid-2019. A new 3m-wide cycle path will be constructed to replace the existing path, including necessary upgrades to meet current standards. It will continue to run adjacent to Whatley Crescent and the rail line. It will be one of the final elements of the Bayswater Junction to be built, with works to start late 2019. The temporary route will remain in place until the new cycle path is completed. Cycle path REDCLIFFE REDCLIFFE PERTH AIRPORT
Transcript of Forrestfield-Airport Link · “L” shaped reinforced concrete cantilever wall. Heights range from...
BAYSWATER JUNCTIONWHAT’S HAPPENING IN MY ZONE?
Forrestfield-Airport LinkMETRONET
FORRESTFIELD STATION
REDCLIFFE STATION
BAYSWATERJUNCTION
Retaining walls and noise walls will be constructed from materials that will be coated with anti-graffiti paint and can be easily cleaned.
The final landscaping package will consider if vegetation can be used to screen some of the walls. Plants growing on the walls cannot be considered as this will increase ongoing maintenance requirements.
Further information, including community consultation on colour selections of the anti-graffiti finish and the landscaping design, will be provided mid-2019.
Issue#7 | November 2018
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. More information on these is provided below, as well as overleaf.
Given the limited space and a commitment to keeping as many trees as possible, the design has undergone a number of revisions. Despite all efforts, it has not
been possible to fit all required elements within the rail corridor. As a result, some tree removal is required.
Following detailed reports from an arborist and consultation with City of Bayswater, 12 trees need to be removed due to their location within the construction boundary and two due to poor health. This has been reduced significantly from the 50 trees originally identified for removal in earlier designs.
The trees will be offset in a 2:1 ratio, with new planting of a similar type of tree to occur within the verge at the completion of the works or at another location, to be determined by the City.
Retaining wallsWith the varying heights between the road, path and rail, retaining walls are required along sections of Whatley Crescent. The retaining walls will be built in stages from November 2018 to mid-2019 and range from 1.1m to 3.7m in height. More information overleaf.
Noise wallsAn acoustic analysis has been undertaken to determine the noise walls required to reduce noise levels at adjacent properties. The position and height of the walls is based on this analysis and is designed to meet noise compliance requirements for the operational lines. Web dampeners will also be used on the rail lines, which has helped to reduce the height and extent of noise walls required. More information is provided overleaf. Construction of the noise walls is anticipated to begin mid-2019.
A new 3m-wide cycle path will be constructed to replace the existing path, including necessary upgrades to meet current standards. It will continue to run adjacent to Whatley Crescent and the rail line. It will be one of the final elements of the Bayswater Junction to be built, with works to start late 2019. The temporary route will remain in place until the new cycle path is completed.
Cycle path
REDCLIFFE
REDCLIFFE
PERTH AIRPORT
Whatley Crescent
Whatley Crescent
Railway Parade Railway Parade
Railway Parade
Cobden Street
Anza
c Street
An acoustic analysis has been undertaken to determine the noise walls required to reduce noise levels at adjacent properties. The position and height of the walls is based on this analysis and is designed to meet noise compliance requirements for when the Midland and Forrestfield lines are operational.
The noise wall will be 328m long, varying in height from 1.8m to 4m. The wall comprises up to 200mm thick precast reinforced concrete panels stacked on top of each other to meet the total noise wall height requirement. Steps in the wall height are at intervals of 0.2m.
The noise wall is free standing for a section of the design, however will continue on top of retaining walls (on the east and west) where acoustic analysis has indicated they will not be high enough to provide adequate sound dampening.
Noise wall
Dive structure
Rail overpass
Cycle path
Temporary Midland Line
Midland Line
Forrestfield Line
Legend
Cross section
2.95m
Cross section 2
3.94m
Cross section 3
Noise wall
Noise wall
Noise wall sits on top of retaining wall
Cycle path
Cycle path
Cycle path
Footpath
Footpath
Footpath
Bayswater Junction design
B
C
A
Whatley Crescent
Whatley Crescent
Railway Parade Railway Parade
Railway Parade
Cobden Street
Anza
c Street
This retaining wall is 232m long, located at the western end of the project and is a cast in-situ “L” shaped reinforced concrete cantilever wall. Heights range from 1.1m to 3.7m and are stepped at intervals of 0.2m. The wall separates the cycle path from the rail reserve. A mesh fence is proposed to run along the length of this wall to restrict access to the live rail. The fence posts will be mounted on top of the retaining wall.
This retaining wall runs in parallel to a section of retaining wall B. It will separate vegetation and a batter slope (the crest of which is at Whatley Crescent) from the cycle path.
This retaining wall is located at the eastern end of the project, near the tunnel portal. It is 90m long, with heights ranging from 1.5m to 2.4m. The wall retains a soil batter from the cycle path. A 1.1m high partial barrier fence runs along the length of the wall.
3.87m
2.91m
Cross section
Cross section
Cross section
1.64m
Noise wall sits on top of retaining wall
Diaphragm wall
Diaphragm wall
Retaining wall
Cycle path
Cycle path
Cycle path
Footpath
Footpath
Footpath
Bayswater Junction design
A D
D
C
B
Retaining walls
Building the base slab for the Bayswater dive structure requires 4050 cubic metres of concrete. This will be constructed during 18 separate concrete pours.
There will be four pours completed this year (see proposed dates below right), with the remainder planned for early next year. The pours will begin at the tunnel portal end of the dive structure, near Newton Street.
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.
There will be up to 12 truck movements per hour, entering via the main gate at Newton Street.
Noise mitigation will be in place for the works, including acoustic barriers and mains/solar-powered lighting.
The dates for each of the pours may change depending on weather conditions and construction schedules. An updated list of the planned dates will be available on the project website www.forrestfieldairportlink.wa.gov.au, on the Bayswater Community Zone page.
1800 814 512 e: [email protected] www.forrestfieldairportlink.wa.gov.au
More informationPublic TransportAuthority
The landscape at Bayswater has changed significantly over the past 18 months.
From the temporary relocation of the Midland Line, starting construction at Bayswater Junction, to the building (and almost completed excavation) of the 400m-long dive structure. Excavation is expected to be completed in November. The next major activity will be the construction of the dive structure base slab which includes waterproofing, sealing and then a series of concrete pours.
Out of hours work - concrete pours
Slab pour
Proposed date
1 20/11/2018
2 27/11/2018
3 07/12/2018
4 13/12/2018
