New MetroRail was a division of the Public Transport Authority in Western Australia. It was responsible for managing extensions to Perth's railway network. The project doubled Perth's rail network, which is operated by Transperth, and was completed in 2007, after various projects were completed. Costing $1.6 billion the project was the largest public transport project ever undertaken by the Western Australian government and effectively doubled the size of Perth's railway network.
In December 1994, the Metropolitan Region Scheme was amended to include the original route for the Mandurah Railway, via Kenwick. In July 1995, the Court Liberal government announced the new line to Mandurah (via Kenwick) and committed to complete the line from Kenwick to Jandakot by 2005. In April 1997, the same government approved funding for the South West Metropolitan Railway Master Plan. The Master Plan was completed in April 2000. In June of the same year, the plan for the Currambine to Butler extension was released, which formed part of the Northern Suburbs Railway Interim Master Plan.
In February 2001, the Gallop Labor government was elected. In August 2002, that government announced that the rail alignment from Jandakot to Perth would run in the median of the Kwinana Freeway, not along the existing Woodbridge to Kwinana freight line and Armadale Suburban line as previously planned.
In December 2007, the Southern Suburbs Railway opened, meaning that the project was complete.
Works on the Northern suburbs line within the project included;
The amendment of the Metropolitan Region Scheme to excise of 202 hectares of land from the adjoining Neerabup National Park, while returning some 572 hectares back to the park in the same adjustment;Acquisition of relevant lands, funded from the 2000/2001 state budget;The construction of a new Currambine station to a location within the middle of the Mitchell Freeway road reserve, along with associated approach works;Demolition of the previous Currambine station, including associated sidings and rollingstock cleaning facilities;Construction of Clarkson station and associated works;A new station at Greenwood, Greenwood Station;Construction of a rail bridge at Burns Beach Road;Construction of a road bridge at Hester Avenue;Construction of the new Nowergup railway depot;Construction of the rail reserve and 4 km of railway track from Burns Beach Road to Nowgerup, along with associated necessary works including communications and signalling;Upgrade of existing station platforms along the line to a length of 144 m to accommodate 6-carriage rollingstock; andThe purchase and delivery of new railcars at a cost of $23 Million AUD (2000).Construction of 8 new stations: Bull Creek, Murdoch, Cockburn Central, Kwinana, Wellard, Rockingham, Warnbro and MandurahConversion of the existing Canning Bridge Transfer Station into Canning Bridge Train Station, including modifications of lower level platforms to suit rail, and to bus bridgesTrack infrastructureRealignment of Kwinana Freeway carriageways and construction of concrete crash barrierStrengthening of the existing western Narrows BridgeConstruction of a new rail bridge between the existing Narrows Bridge carriagewaysWidening and strengthening of Mount Henry BridgeConstruction of a tunnel in Anketell and Glen Iris, JandakotConstruction of a new storage and cleaning facility at MandurahConstruction of new underground platforms at Perth Station under William StreetConstruction of a new underground station at The EsplanadeConstruction of twin bored tunnels under the CBDConstruction of cut and cover tunnel and open dive structure along Perth foreshoreConstruction of Thornlie stationConstruction of an electrified spur line from the Armadale Line near KenwickConstruction of stage 2 of the Kenwick TunnelConstruction of a rail bridge over the Canning RiverConstruction of a new Victoria Park stationDemolition of Lathlain stationRenovation of Carlisle stationConstruction of a new road over rail bridge at Miller Street, Victoria ParkConstruction of a new road over rail bridge at Gerard Street, CanningtonConstruction of a new shared bicycle-pedestrian bridge at Howick Street, Victoria Park