The High Level Bridge makes possible other connections. It carries a road, which forms part of a huge network of roads forming connections between places. And it holds a railway line, part of another huge network which connects places together. Two more important connections.
Pigeons. They make their home on the bridge. Carrier pigeons, messenger pigeons. Pigeons carrying messages between two places, connecting those places through their flight path, and through the messages they deliver. Tentative, perhaps. But still a connection.