 Finally a passivation process removed any surface iron compounds which are a potential source of corrosion.The Helix Bridge is featured in the third season of the HBO science fiction television series "Westworld".The nucleotide sequence, as reading going towards Marina Bay Sands, is "AAAATTTTCCCCTTTTGGGGTTTTCGAGCTCGGGGTCCACTCCGGATTCTGTGTGTGTGTGTGTGTCAACTGAATGA".