 Arlingham is on the course of a Roman road, the Margary 543 which is said to extend from a river crossing of the Severn at Arlingham through Frampton on Severn, Eastington, Frocester and Kingscote to join the Fosse Way It is believed that the remains of this can be found in Silver Street and that the straightness of Passage Road was due not to Roman ancestry but to the former existence of flanking rope walk.The Roman road led to the old Ford, which crossed the Severn to Newnham.The position of this ford can still be seen at low tide, when the water ripples over the shallow bed of rock, a few hundred yards from Newnham, just below Broadoak.