QUOTE (pingu666 @ Mar 22 2010, 08:45)

wonder why it formed cracks

Can anyone transcribe and summarise in English?
Modern box culvert construction can be completed very efficiently under roadways, to rebuild across closed road is even more straightforward. The only real possible headache comes down to the local soil geology and drainage. First visual glance I would say is there has been subsidence due to ingress of water. I'm sure we'll be at Spa for the best round of them all in 2010.