SHE left Forrestfield late last year and has arrived at the Airport Central rail station being built near the control tower at Terminal 1.
Tunnel boring machine Grace and her twin Sandy are yet to bore under the airport runways and Swan River as part of the Forrestfield- Airport Link on their way to Bayswater.
TWO tunnel boring machines for the Forrestfield- Perth Airport rail link have reached the airport – about a quarter of the way into their 8km journey to Bayswater.
Sandy broke through the arrival box at the future Airport Central station on Sunday after sister machine Grace arrived on May 8.
The machines, which started tunnelling at Forrestfield late last year and were briefly halted in late March because of “minor ground disturbance”, are at track level of the future station, 17m below ground.
Future passengers will enter the station at ground level near the Terminal 1 control tower and go down to a train platform similar to Perth Underground.
Premier Mark McGowan visited the site Monday morn- ing to mark the arrival of the boring machines as “an exciting milestone for the Metronet project”.
Mr McGowan congratulated the station construction workers, who prepared the station’s 2200sq m concrete walls, and the machine operators.
“The scale of these machines are incredible; they are taller than a two- storey house,” he said.
Both machines will now be serviced for a month before Grace continues to Redcliffe station, with Sandy following about two weeks later.
Transport Minister Rita Saffioti said the Forrestfield-Airport Link was the biggest WA rail project in more than a decade.
Tunnel workers inspect Grace at Airport Central this week.
Tunnel boring machine Grace.