The Victoria Lineruns south-west to north-east across Central London, with a spur to the north to the above ground Northumberland Depot .
Status on OpenStreetMap
The first designs were published in 1948 by the British Transport Commission, 70 years brings these wholesale out-of-copyright in 2018. Being a newer line it has a much larger number of ventilation shafts. The Victoria Line has been mapped primarily from angular surveys at stations, and joining up via the mid-tunnel vents. It will still be some metres off, the position of shafts related to the tunnels can not be easily surveyed—will probably require ground-penetrating radar from street level.
Known points of intersection (incomplete)
- Northbound bore under eastern corner of All Souls' Church, New Broadcasting House, junction of Langham Street/Hallam Street at +9.5m ODM
- Southbound bore just missed eastern side of New Broadcasting House, halfway between junctions of Langham Street/Hallam Streets; Langham Street/Great Portland Street, just north of Junction of Gildea Street/Great Portland Street
- Cross-passage east-west between Hallam Street and Langham Street
- Long cross-passage under the BBC, perpendicular to the bores, roughly inline with Little Titchfield Street.
- Maziri, M.; Steen, P. (1-6 October 2008). "BBC W1 Development Case Study – Tunnel and Construction Monitoring". http://www.civil.iitb.ac.in/~dns/IACMAG08/pdfs/R03.pdf. Retrieved 31 July 2013.
- Vaziri, M.; Hartlib, T. (1-6 October 2008). "BBC W1 Development Case Study – Tunnel Movement Class and Predictions". http://www.civil.iitb.ac.in/~dns/IACMAG08/pdfs/T01.pdf. Retrieved 31 July 2013.