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Helix bridge

The Helix Bridge, officially The Helix, and before called Double Helix Bridge, is a pedestrian bridge linking Marina Centre with Marina South in the Marina Bay area in Singapore.
The main design idea is based on the double helix structures that act together as a tubular truss to resist the design loads. This approach was inspired by the form of the curved DNA structure.

The Helix is fabricated of about 650 tonnes of Duplex stainless steel and 1000 tonnes of Carbon steel used in the structure and also helping the bridge to get the helix shape