This evening I walked along the canal, which is now nearly empty. In some places you can see the bottom. The first drawing is from my walk 'n draw sketchbook. The top drawing I did in the studio to provide a sense of how the canal is presently just a deep ditch. It needs to be in black and white.
Not too much junk at the bottom, at least in my area, though there are two computer towers at the bottom at the bridge from which location the top drawing originates. I am assuming that the water has been released to enable repairs to the berm. But it is grim.