From Moves 29 WESTWALL Arnhem [12.0] (CLARIFICATION) Highway Bridges are non-RR bridges over rivers. Canal Bridges are non-RR bridges over canals. [18.22] (ADDITION) The German BrDf (2-2-7) must be placed in hex 2621. Map (CLARIFICATION) Hexside 2120-2121 is a Canal Bridge for all purposes.