Seem there's more problems
http://www.dover-express.co.uk/Traffic-delays-expected-manhole-collapses-Jubilee/story-20066579-detail/story.html
"DIVERSIONS are in place on the southbound A2 on Jubilee Way after a manhole collapsed.
The road is closed between the A258 and A20 junctions in Dover between Guston Roundabout and Eastern Docks Roundabout."
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Also, has anyone been on the A2 costbound towards the Jubilee Way/ Deal junction roundabout recently? More white lines have been painted on the road reducing the approach to the roundabout down to 1 lane even further.