It was the outpost of Roman city life towards the Atlantic.

It was the only town of Roman municipal plan in Britain which was swept by Atlantic breezes.[111] [110] The three best defined examples measure about 260 x 260, 260 x 280, 275 x 275 ft.

(1.55, 1.61, and 1.73 acres respectively).
The unit of 240 Roman feet (p.

79) does not appear at Caerwent.
[111] Accounts of the Caerwent Excavations, 1899-1910, will be found in _Archaeologia_, vols.

lvii-lxii.