Wide Wednesday: The Low Down

Many thanks to Freyjad who is hosting Widwed again this week: the theme is "The Low Down (low angle)".  As I went through this bridge under the Metro line on my morning walk I thought it would make a suitable shot, so I held my phone camera down low, pointing up, and managed to capture a Metro train speeding by on the bridge - hence the yellow-and-black blur in the picture.