Personally, in an 80, I wouldn't give it a second thought. I'm not a gung-ho idiot like some, but that's well within the capability of an 80. Looking at the 'before and after' depths on the posts, regardless of the speed of flow, there's a very solid bottom, so yes, I'd drive through that. I've been through significantly deeper and faster water than that. The 80 has a std wading depth of 700 mm. So I'd tackle that without a snorkel too.
You lads need to man up. Go and try the Corwen car-wash. Even at low levels it's more than that. Forget there being a pub at the other side. It's your duty to lead and show lightweights how it's done.