The project involved the construction of a second pair of tracks, each of which is 6.5km long, on the East Hills line. It also included the construction of 10 new rail bridges and the modification of 5 existing bridges, including 1 incremental launch.
Quickway were contracted to carry out bridge construction, retaining walls, concrete plinths, capping beams and other associated concrete works.
Number of Bridges: 15 bridges total over rail
Number of Bridge Construction Concurrently: 6 within limited timeframe
Type of Bridge: Overbridge (Main Line & Overpass)
Type of Superstructure: In-situ post tensioned super T girders, precast planks
Type of Substructure: In situ abutments and piers
Type of Parapets: Precast panels with in situ stitch
- Interaction with numerous trades including piling contractors
- Working within live rail corridor
- In situ post tensioned bridges which included intricate and challenging formwork solutions for post tension cast ins, diaphragms, void formers and flotation mitigation
- Construction of incremental launch at Salt Pan Creek