This pair of single track tunnels carry the Clydebank to Dalmuir (North British Railway) line under the Forth and Clyde Canal between Clydebank (to the east) and Dalmuir (to the west).
For the line's construction the Forth and Clyde Canal was deviated slightly to the south, creating two bends in the canal where there had been one before. The original course of the canal was obliterated not long afterwards.
The '23' is due to this being the 23rd structure on the line going west from Hyndland.
Nearby stations Dalmuir Riverside Dalmuir [1st] Dalmuir Singer Kilbowie Singer Workers Platforms Clydebank Clydebank East Clydebank Riverside Drumry Yoker Old Kilpatrick Kilpatrick Yoker Ferry Renfrew Wharf | Dalmuir No 25 Tunnel Singer Timber Yard Turners Asbestos Cement Works Singer Works Kilbowie Swing Bridge Dalmuir Shipyard Clydebank Central Junction Dalmuir Park Junction Dalmuir Dredger Works Clydebank Goods Junction Clyde Trust Siding Signal Box ROF Dalmuir Singer Signal Box Dalmuir Sewage Purification Works Tourist/other Newshot Island |
Location names in dark blue are on the same original line. |