Editing Waterloo & City line (section)

====Permanent way====
The ordinary LSWR permanent way was used, with {{convert|87|lb/yd|adj=on}} rails, but in the tubes longitudinal timbers were used instead of cross-sleepers. The sharp curves had [[guard rail (rail)|check rails]]. Cross-bonds paralleling the running rails electrically were provided every {{convert|100|ft}} and between tracks at the cross passages. The track gauge was the standard {{Track gauge|56.5 in}}.

The conductor rail was a steel inverted channel placed centrally, with its upper surface at the same level as the upper surface of the running rails. At pointwork a hardwood ramp was provided to raise the collector shoes {{convert|1+1/2|in}} above running rail level.