A lot. - lemm.ee

The bridge is basically valueless compared to everything else about the ship and cargo plus the lawsuits from various contract breaches and other damages. Port shutdowns, environmental cleanup, insurance losses. $100m is a rounding error.
It was worth $110M in 1977. Probably a couple $Billion now.
That’s not how rusty decaying infrastructure works.
I suppose there’s a difference between the resale (or original) value of the material, and the abstract value of having an, any, bridge in that location.
There’s also the concept of forward replacement value, which is the cost of replacing something like for like.