Man, that's as fucking scary as you can get without being dead ...

Why that Su-Hwa Highway was still open on Saturday is questionable. They have big iron gates to lock it down.

Interestingly, the gates were introduced after the buses were swept off the cliffs in landslides during a very similar event - happened Oct 23, 2010. It wasn't a typhoon directly - though there was a typhoon (Megi) that passed south of Taiwan that contributed moisture - but it was the interaction with the NE monsoon that set the downpours off. There's something about that outcrop between Su-Ao to Nan-Ao where it goes crazy when a typhoon mixes with the dong-bei-ji.

https://www.taipeitimes.com/News/front/archives/2010/10/23/2003486674

Edit: Dug up the Megi 2010 track