Maria Creek Bridge
The project involved demolition of an existing timber bridge in an environmentally sensitive area, piling foundations, construction of a pre-cast girder deck bridge, services relocations and construction of approaches.
Scope of works included:
- Demolition of existing timber bridge
- Excavation of 1500 m³ for bridge approaches, waterways and structures
- 100 metres of 1200mm diam. in-situ reinforced concrete piles
- Reinforced concrete abutments and wingwalls
- Supply and erection of precast deck units
- In-situ pouring of pedestrian walkway, relieving slabs and kerbs
- Ground treatment under embankment and in subgrade
- Guard rails and balustrade
- Relocation of utility services onto the new superstructure
Notable aspects of the project:
- Working over a sensitive waterway
- Piling near overhead powerlines
- Service relocations
- During the project SGQ introduced a design enhancement, utilising a greater number of 1200 diameter piles, to shallower depths, in lieu of 1500 diameter piles to difficult greater depths.
