[HCIdivision17]

I didn't have an intuition for this, so I took a shot in the dark as a baseline. Wolfram Alpha suggests that the Golden Gate bridge was about $350M in modern money, and given length and height, I'd say they're pretty comparable. They're both within probably $25M of what you'd sort of expect of each other, with the Golden Gate being a little longer (0.3 miles) and the one you're referencing is much lower (GG is 120m higher).

Now, I'd guess there's some debate if the Golden Gate was worth it, but I think in the long run these sorts of things define regions and become essential.

EDIT: Noting I already did the 1930s money conversion.

[swuecho]

it worth 350M in modern money does not mean you can build it today with 350M.

[HCIdivision17]

To be sure - and in fact people seem to debate the idea that the same bridge would even be built at all these days. It was apparently quite the political undertaking.