Traffic is limited to single file through the bar arch and controlled by a set of lights.

[4] The bars also acted as toll gates, passage through them having to be paid for as a sort of local tax.

There are records of the North Bar being used as viewing gallery for the town governors in the 15th and 16th centuries during the plays that occurred at the Corpus Christi festivals.

[5] The two-storey structure is made of brick with buttresses on the North face either side of the archway.

[1] On the South face above the centre point of the arch is some protruding brickwork of three shields hanging from a line.