View looking north at the double level of arches that supported the "Nysa Bridge" over the (modern) Cakircak stream. Part of the substructure includes a tunnel that is over 300 ft. in length!
This structure is called a "Bridge" because of the way it was constructed. To this observer, it looks like it formed part of the structure that supported some of the seating of the stadium—some of which still exists but much of which has collapsed into the stream.