Continuing my theme of aerial photos from my flight to DC, as we got in to the metro area, I could see a major interchange under construction on one of the highways.  I’m sure, if I could be bothered, it would be possible to work out which highway this is and where the interchange is being built but I’m not that interested.  If you happen to recognize it, I would be fine knowing since that would require no effort on my part!  The evening light angle meant the shape of the construction was picked out with more clarity.  I wonder when it is due to be completed?