Originally Posted by
DaveReidUK
As far as I recall, they managed to convert the M3 into a smart motorway without needing to close it at any stage.
They were still closing stretches of it at night until earlier this year Dave - after 20:00, sometimes but generally after 22:00 - I think th elast peices wre the bits around Farnboro/ 'Bush - it's now pretty much finished after years of work. I don't think they ever closed the bit of the M4 near Bristol tho' - but that was very short