Buses will replace trains on the Mernda line for two weeks in late-August and early-September, as construction of the new rail bridge is completed and crews prepare for the opening of the new Preston and Bell stations.
Passengers are asked to allow up to 30 minutes extra for their journey.
Buses will run between Clifton Hill and Mernda stations from 9pm Friday, August 26 until 3am on Sunday, August 28; between Clifton Hill and Reservoir stations from 3am on Sunday, August 28 until 9pm on Sunday, August 28; between Parliament and Reservoir stations from 9pm Sunday, August 28 to 9pm Friday, September 2; between Clifton Hill and Reservoir stations from 9pm Friday, September 2 to the last service on Sunday, September 4.
During this time, crews will connect the existing rail track to the recently completed second rail bridge through Preston, ahead of services resuming and the new Bell and Preston stations opening on Monday, September 5.
Since May, trains on the Mernda line have been running on a single elevated track between Regent and Thornbury stations, and running express through Bell and Preston stations.
People are encouraged to visit ptv.vic.gov.au/disruptions and bigbuild.vic.gov.au for more information and to plan their journey.