| Year | 2016 |
| Date | 24-Jun |
| Volume | 217 |
| Issue | 4,537 |
| Page | 49 |
| Category | An Engineer's Day Out |
| Part | |
| Title | Tower Bridge |
| Author | Roger Backhouse |
| Notes | Investigates the history and the mechanism. Construction, hydraulic power and pumping engines, hydraulic motors and controls, what the public sees, William Armstrong, references |