| Client | CPB Contractors |
| Year Completed | 2019 |
| Location | Clarence, Bell, Blue Mountains |
| Value total ($) | 2.3 million |
| Quantity | 12 tunnels |
Zig zag Railway is a tourist attraction throughout the Blue Mountains region, AusDilaps had the opportunity to work to restore this beautiful part of history. The railway works covered by the allocation will include clearing and resealing the car park, refurbishing the amenities building and the crossing, track works and the installation of two electric charging stations.
Zig Zag Railway chairman Lee Wiggins said the goal was to have the railway reopened for passenger trains by its 150th anniversary, October 2019.
Building Dilaps scope of work was to inspect heritage listed rail tunnels, tracks and stations along the route.