There is one near to me in Talbot Green (S. Wales) where the now disused line from Pontyclun (formerly Llantrisant) to Treforest crosses the A473
That one is still, technically, in use. It has been retained because there is an aspiration to run a passenger service from Beddau to Cardiff, either via the Main Line or over the rebuilt TVR line to Waterhall Junction on the City Line.
I think Banbury Lane also remains on the Weedon branch of the WCML south of Rugby, the gates are shut and lighting removed; all road traffic now uses a roadbridge nearby.
Yes, I am serious.