Tunnel Entrance Including Embankments

The tunnel entrance and adjacent embankment, accessed from the Sussex Square Estate gardens, were built between 1828 and 1830, with the embankment possibly constructed slightly later. The architect was H.E. Kendall, junior. The tunnel is made of brick in Flemish bond and features a barrel-vaulted, brick-lined interior that leads to the old Reading Room and Esplanade Cottages on the opposite side of the roadway, facing south. The entrance has a simple round-arched opening set within a gabled surround. The listing also includes the embankments that approach the tunnel, which are battered and slope down away from the entrance. This structure is part of a group that includes the former Old Reading Room, Esplanade Cottages, and The Temple.