Subtle (embedded) traces of the working river. A pub with an ambiguous name. A bird or a mechanism for loading and unloading cargo? Further down The Causeway, a metal sign at the point of aquatic convergence, revealing a small canal, interred in the 1930s. Out on the main (liquid) highway, two vessels work their respective loads downriver against the incoming tide. Aggregates and the city’s waste. To build and dispose. A précis of the onetime veritable smorgasbord of trade that wound its way across the oceans and tributaries.