ROAD works start next month as part of the project to sink the train line and reconnect the CBD with Northbridge.
Work begins at Barrack Street Bridge from mid-April until later in the year and on Wellington Street, from William Street to the front of Perth Station, from mid-May until mid-2013.
Perth City Link Rail Alliance manager John Anderson said the road works, which include closing and removing the staircase on the Wellington Street side of the Horseshoe Bridge, would allow for the upgrades at Perth station.
He also said the Alliance aimed to restrict the works to limited areas, so there would be minimal vehicle congestion and bus services could run.
“We have also ensured pedestrian access has been maintained between Perth Station and Forrest Place and into Citiplace from Barrack Street,” he said.
Wellington Street will be one lane in both directions from William Street to Forrest Place, with the two westbound lanes re-opening later in the year, while the southbound lanes on Barrack Street will also be closed.
The blue CAT stop on Barrack Street will move to Beaufort Street (Art Gallery of WA).
The Wellington Street bus stops between William and Barrack streets will be closed from May until later in the year.
Traffic maps are available at perthcitylink.wa.gov.au.