Works and planning

The Helidon to Calvert section of Inland Rail will be built predominantly within the existing rail corridor and the Department of Transport and Main Roads’ Gowrie to Grandchester protected rail corridor. A study area has been identified to consider refinements.

Work is expected to include building:

  • 47km of new dual gauge track
  • an 850-metre long tunnel (approximately)
  • 30 bridges, including:
    • 26 rail bridges (with 12 rail bridge crossing roads and 1 grade separated rail bridge crossing rail)
    • 3 road bridges crossing rail in Helidon and Gatton
    • 1 grade separated pedestrian bridge crossing rail in Gatton
  • crossing loops at Helidon, Gatton, Laidley and Calvert.

Watch a fly-through of the project

Get a birds-eye view of the Helidon to Calvert project. The fly-through is for illustration purposes and for discussion during community consultations.

Current and upcoming field investigations

Last updated 22 December 2022.

Location/sType of workTimingContractorWhat to expect
Gowrie to KagaruGroundwater monitoringOngoingGoldersContractors checking groundwater monitoring bores on public and private properties.
Gowrie to KagaruSurface water monitoringOngoingGoldersContractors collecting water quality data from waterways relevant to the projects, generally in line with the monitoring sites outlined in the draft EIS’s.
Gowrie to KagaruCadastral SurveyOngoingRPS SurveysInstallation and establishment of major survey control marks within the G2K project areas.
Gowrie to HelidonGround Water samplingDecember 2022 to January 2023Regionerate Rail
(Epic Environmental and Webuild)
Installation and monitoring of ground water monitoring bore on and private properties.
Gowrie to Helidon and Helidon to CalvertSoil samplingMarch to May 2023FFJV (Aurecon) Contractor conducting soil sampling on properties located on and near the alignment, as agreed.


To get a sense of what your community will look like after the project has been completed, check out our visualisations of the proposed design.

Visualisations are for illustrative purposes and not to scale

Warrego Highway, Grantham

Off Beavan Street, Gatton

Douglas McInness Drive, Laidley

Calvert School Road, Calvert