Bridge 2 for tank truck is missing the grid. I've uploaded a screenshot with the grid shown.

I had to adjust bridge 1 a little bit for it to work. Still collapses but is even a bit cheaper.
Screenshot

Bridge 5 I done for 20350

Sure

@MrLars, awesome that this guide i still helpful after 7 years !

thank you very much!!!

Bridge 4 tanker truck - with some minor changes:
https://steamproxy.net/profiles/76561197983681302/screenshot/961964660023250972
Works for me @ 144hz. Nothing blows up. Note the rectangular box in the middle, and I may have moved the road piece a little to the right.

Bridge 4 doesn't work for Tanker Trucks. And don't follow the link to the suggested solutions by Murphy's Lawyer, both fail.

Nicely done :) Thx for the help, pal :)

Here's the solution for Tank Trucks on Bridge 2 .