This vaulted tunnel was original designed by Marc Brunel and built at the beginning of the 19th Century. Its purpose was to allow timber to be brought from a nearby canal to the Brunel Sawmill, within Chatham Dockyard. After the closure of the timber yard, the tunnel was re-used as a Civil Defence HQ. Halfway along the remaining section of the tunnel a second floor has been added, giving this area two levels, the lower level forming the rooms for the HQ. A few interesting items, such as wall fixings, tables and a chalk board still remain in situ from this time. Blast walls have also been added in the other parts of the tunnel, and three emergency exits created.
Unfortunately, these tunnels are not open to the public, this was a one-off specially arranged trip with Kent History Forum.
Looking in from the entrance
Original doors remaining in good condition
This ladder leads up to the upper level