cost of helix bridge
On a cost-per-metre basis, it is actually more expensive. The 280m-long Helix bridge cost $69 million to build, compared with the $40 million to span the 150m of the Torrens.Source: Supplied. That's $27,000 less per metre to build the Helix Bridge.n a cost-per-metre basis, it is actually more expensive. The 280m-long Helix bridge cost $69 million to build, compared with the $40 million to span the 150m of the Torrens. Source: Supplied.