Exterior view of Wareham signalbox from level crossing. This box is an LSWR TYPE 4 box with 30 lever Stevens frame (frame built by Tyer) and is Wareham's second signalbox, the first signalbox (Type A1) and station was built in 1847 by the Southampton - Dorchester Railway. The first box was located to the West of the new station and was replaced by this new box in 1928 located at the East end of the new larger station. The new box was named Wareham East when built in 1928 but was renamed Wareham on demolition of the original Wareham West box. The level crossing used to carry the main road (A351) but was closed to road traffic and the gates were removed on 3rd April 1980, the road is now carried over the railway by a bridge to the East of the station, part of which can be seen to the right of the box. The wicket gates were removed 26 June 1988 and the foot crossing is now fitted with electric lights to warn pedestrians of approaching trains.

Wareham Box was used on 7th September 2002 when signalman Bob Richards signalled Virgin Trains DEMU 220018 onto the Furzebrook branch at Worgret Junction (1 mile 418 yards west of Wareham box) to run over the temporarily reinstated connection to the Swanage Railway for the trains official naming ceremony at Swanage Station on 8th September 2002 where it was named DORSET VOYAGER. Mr Richards was also the duty signalman at Wareham who accepted the last train from the Swanage branch onto the mainline on 3rd January 1972 before closure and lifting of the original Swanage branch line beyond Furzebrook.

The Dorset Voyager 220018 left the Swanage/Furzebrook branch on 9th September 2002 and reversed at Wareham. This working was also signalled from Wareham box.