Railworks Aust offer services in both surface and sub-surface drainage maintenance and solutions. For surface drainage we use the Cess and Catch drains with Mitre drains at regular intervals. These are all open trench style drains to remove the surface runoff together with water permeating out of the track structure. This together with the grading of the track sides to allow the removal of any water flowing out of the ballast offers a suitable drainage option. We will also undercut mudholes to help improve drainage in order to enable higher track speeds.
The sub-surface drainage system is required in areas where the surface drain system is unable to be effective such as through platforms or underneath multiple track zones. These will collect water that seeps into the capping layer together with assisting in the lowering of the water table.