If the UK ever experienced a earthquake that was close to the magnitude of the recent Earthquake at Japan I know that the country would be devastated. However how long would it take the country to rebuild?!
Well in Japan after the devastation of the earthquake not only were there relief efforts in place to find the missing or work put towards trying to prevent a nuclear fall out. They were able to repair roads such as the road that was on the news throughout the day te earthquake stuck. If you cannot remember the road in question below is the picture.

As you can see there was a huge 150 meter chasm generated by the earthquake changed the structure of the land and caused all kinds of structural headaches.

Well this photo was taken only 16 Days later. To be honest it was apparently less than that I have for the work to be completed. On the 17th March 2011 NEXCO were set to work to get the road back to a working state and with SIX days labor they had it rebuilt and ready for action.
If that was England your looking at 60 days. Just shows that some countries know how to do it. Maybe the highways agency should watch how Japan do it.