Very much permanently. No entry sign at the bridge as you drive down school lane
It appears that it is one way from just after the entrance to the Post Office club to the other side of the bridge by Gravel Lane - 150 yards approximately. There are also road humps before the PO entrance to just by The Brandons. It seems like there are some up School Lane as well. If you live in Rickerscote it is now entry only via Silkmore Lane/Rickerscote Road.
It's a route which I use regularly when visiting a supplier. Now I can only use it one way.
If the traffic 'gods' in SCC wanted to discourage people to stop using a road they can legally use, then the road humps would have been enough. The Gravel Lane humps had already cut usage from my own (non-scientific) observations. Making it one way only over the bridge is just ridiculous.