Liverpool Overhead Railway Southern Extension Tunnel
| Southern Extension Tunnel | |
|---|---|
Southern extension tunnel portal at Herculaneum Dock, halfway up a cliff face | |
Interactive map of Southern Extension Tunnel | |
| Overview | |
| Other name | Dingle Extension Tunnel |
| Line | Liverpool Overhead Railway |
| Location | Merseyside |
| Coordinates | 53°22′48″N 2°58′14″W / 53.3801°N 2.9705°W |
| Status | Disused |
| Start | Herculaneum Dock |
| No. of stations | Dingle railway station |
| Operation | |
| Opened | 31 December 1896 (passenger service) |
| Closed | 30 December 1956 (passenger service) |
| Operator | Liverpool Overhead Railway Company |
| Traffic | Single ended passenger rail with terminus station |
| Technical | |
| Design engineer | Charles Douglas Fox |
| Length | 0.5 miles (800 m) |
| No. of tracks | Double |
| Track gauge | 4 ft 8+1⁄2 in (1,435 mm) |
| Tunnel clearance | 19 feet (5.8 m) |
| Width | 25 feet (7.6 m) |
The Liverpool Overhead Railway Southern Extension Tunnel, also known as the Dingle Extension Tunnel or variations thereof, stretches for half a mile from Herculaneum Dock to Dingle underground railway station, which was the southern terminus of the Liverpool Overhead Railway.