Of course, it's more complicated than I said, but also isn't so simple like "OMG the bridges in Ukraine will collapse as soon as they see first 60+t tank". Of course they will be inspected for state before and after, they will use trailers because it's faster and safer etc. but its war and bringing tanks to the battlefield is more important than will that bridge collapse 10 or even 20 years earlier than planned. So, to say that Western tanks can't arrive from Lvov to say Bakhmut because of bridges- is nonsence.