Steel:
Australian Iron and Steel Ltd. (AIS) - Port Kembla, NSW: The majority of the steel used for the Sydney Harbour Bridge was produced by the Australian Iron and Steel Ltd. plant in Port Kembla. The steel was then transported to Sydney by ship.
Granites:
Moruya, NSW: The granite for the pylons and piers was quarried from Moruya, a coastal town located approximately 250 kilometers south of Sydney. It was chosen due to its strong and durable properties, as well as its aesthetics.
Sydney Sandstone:
Sydney Region: The iconic sandstone blocks used for the decorative elements and road deck were sourced from various locations within the Sydney region, including the nearby Pyrmont and Hawkesbury Sandstone quarries.
Timber:
Australian Hardwoods: The bridge's timber components, such as the timber flooring and bracing, were made from Australian hardwoods, including tallowwood, ironbark, and brush box. These timber types were chosen for their strength and resilience.
Imported Components:
Suspension Cables: The suspension cables, each measuring over 1,500 meters in length, were manufactured by the British firm Dorman Long and Company in the United Kingdom. The cables were composed of high-tensile steel wires carefully spun together.
Basalt:
Tasmania: The basalt used for the bridge's protective aprons was sourced from Tasmania. It was chosen for its hardness and resistance to wear and tear.
Overall, the Sydney Harbour Bridge utilized materials from various local sources in Australia, with some specialized components being imported from overseas.
