Thanks, M'Lud!
I put some effort into this one. What an excellent challenge - I really enjoyed that. I apologise for getting it sooner than perhaps it really deserved.
I can't claim any visionary status in divining the answer from the photos though. Your subtle trail of breadcrumbs was what did the damage - the date being the most significant. Arc Light was an excellent foil, and took me off in the wrong direction to start with! But you said the day before - so I had a look at what handovers took place in the region on the
17th rather than the 18th...
And it wasn't until I found a story about the problems with ground water drainage (or lack thereof) which was lifting the tarmac that I knew I'd got my man.
Here is my challenge in response. I don't think it will last long, and it does appear on the list as a previous contestant, but not in a long time. And as it's one of my own, it
should fail the GI test.
