The Trans-Ocean Bridge was never completed. It fell victim to the competition of the Trans-World Tunnels network, although both featured vacuum tubes for maglev trains and particle accelerators geared for the mass production of nano-black holes. Dismantlement began and soon stopped, the insanely massive piers and mile-high pylons being too costly to tear down. Etc.
That took way too long and I won't have much sleep.
Layer dump added.