So, I went to Home Depot and the bullnose bricks are special order, I just wanted to see them up close, they come in so many colors. I then scratched that idea because of the work involved in cutting either the brick, or busting up the concrete pond and redoing where the piers go.
What I ended up doing is falling back to my old standby, insulation foam carved with a soldering iron. Now the piers match the surrounding tunnel portals and culvert.
