SDO9844 - Dorchester, Dorset County Museum, centred on SY 6922390791. Proceedings of the Dorset Natural History and Archaeological Society.

Building works behind the Dorset County Museum to construct an external fire-escape to Colliton Street required the cutting of two metre-square footings. These were cut by machine with some hand excavation and section drawing. That closest to the museum cut through 1m of deposits to chalk bedrock. 3m to the north the other was cut to a depth of 0.5m below ground level. A 19th century sewer ran through both pits. In the northern trench post medieval construction levels sealed pits with medieval pottery in their upper fills. In the trench closest to the museum the post-medieval construction levels lay directly above a narrow band of Roman occupation deposits at a depth of 0.6m, below this the pre-urban soils were recorded.