Only very recently, I said
"I have no problem with crossing a properly built UK▸ bridge, but would be reluctant to cross the improvised looking suspension bridges that are common overseas.
I would certainly avoid bridges with a glass deck as have recently become popular, and I avoided the glass floor at Paddington station.
Waterloo bridge made me a bit nervous in extreme high winds, because the railings looked too low, and I had a fear of being blown over the railings and into the water to a certain death. I took care to only use the upwind walkway in extreme weather, or to take a taxi.
I once knew someone with a phobia about crossing the Thames or any other large body of water by bridge, that was understandable as they had survived an oil rig disaster.
I have a slight fear of deep tunnels under water, lest they suddenly flood. The SEVERN TUNNEL is the worst due to the vast amount of water that enters and the requirement for continual pumping.
Not very keen on the older tube tunnels under the Thames either.
No problem with the channel tunnel as it is newer and well built."
Slightly off-topic but
IIRC▸ there's at least one toll bridge in the US where if you are afraid of heights, there's the option for you and your vehicle to be driven across by their staff.
Personally I'm more nervous about fellow travellers
