So, the saga of the saggy middle motorway which lead to a rather aggressive 15ft hole opening up just near Sittingbourne on the M2 continues.
Geotechnical (a bloke looking down the hole thoughtfully) investigations are ongoing to discover what caused it to develop. Lucky it couldn’t have happened in a better spot as a few yards either side and it might also have swallowed up some poor driver with their car – and we can but guess that outcome!
Traffic is still slow and will be for the next few days whilst the men and women in their high-vis jackets – scratch their heads, point a lot and take great satisfaction in the fact that they are deemed important enough to peer inside, whilst the rest of the bourgeoisie can do nothing more than admire the pictures 😦
What exactly causes a sink hole?
I had absolutely no idea, then I found this graphic has helped to demystify this phenomenon somewhat!
“Sinkholes are part of the slow, natural process of erosion in limestone terrain that occur over thousands of years. These common geologic phenomena generally occur where the limestone is within a few hundred feet of the land’s surface”
Source: Inspiring Tech blog
That said – there have been bigger sink holes…none of which I’d want to be living near when they open!!