Within the town walls was located the Temple of Claudius in its large temple precinct with a monumental columned arcade. Parts of the temple precinct wall are still visible to the NW of the present castle, jutting out from beneath the Norman bailey rampart. The front of the precinct wall consisted of a large columned arcade screen extending the full width of the frontage. At the centre of this arcade stood the entranceway to the temple precinct, which took the form of a tufa-faced monumental arch that at 8 m wide was about 2 m wider than the one at the Eastern entrance to the town, which had been incorporated into Balkerne Gate.