Structure numbers: the London Underground system

A (one day) comprehensive listing

Last update 23 October 2021

Additional information is always gratefully received, whether entirely new records (particularly historical records) or information to fill in gaps or correct errors, via the contact link under the Miscellaneous entry in the navigation bar above. Thank you.

Please select a starting letter from the links below:

This listing gives the London Underground's equivalent to the ELR system, and is believed current to the mid-1980s. A cursory glance suggests that the codes only apply to structures in non-tunnel sections. Any missing data would be welcome.

Code Name Line Section
BC Borough Council Central White City depot to White City
BT Bakerloo Tube Bakerloo Queens Park to Stonebridge Park
C Circle Circle Aldgate to Paddington to High Street Kensington
CMR Chesham Railway Metropolitan Chalfont & Latimer to Chesham
D District District Ealing Broadway to Upminster; Acton Town to Heathrow; South Harrow to North Ealing
E Edgware line Northern Finchley Central to Mill Hill East
EL East London line East London East London Line
ES Ealing & Shepherd's Bush line Central White City to Ealing Broadway
HB High Barnet line Northern Park Junction to High Barnet
HC Hammersmith & City line Hammersmith & City Paddington to Hammersmith
JE Jubilee line Extention Jubilee Canning Town to Stratford
MLNE Metropolitan and London & North Eastern Railway joint line Metropolitan Moor Park to Watford
MR Metropolitan Railway Metropolitan Baker Street to Amersham
N Newbury Park line Central Newbury Park to Woodford
NT Northern Tube Northern South Wimbledon to Morden depot; Golders Green to Edgware
O Ongar line Central Leyton to Ongar
P Piccadilly line Piccadilly South Harrow to Rayners Lane
PT Piccadilly Tube Piccadilly Bounds Green to Cockfosters
R Ruislip line Central North Acton to West Ruislip
S Stanmore line Jubilee Wembley Park to Stanmore
T Tube line ? ?
U Uxbridge line Metropolitan Harrow-on-the-Hill to Uxbridge
VT Victoria Tube Victoria Northumberland Park depot branch