The Ardglen Tunnel is at the summit of ruling grades, and because of its narrow profile, it created fume problems during steam days.
Larger locomotives, such as the 60-class Garratt, were either prohibited or limited in load.
Fortunately most heavy trains went through the tunnel in the downhill direction, towards Sydney and Newcastle.
The Ardglen Tunnel is at the summit of ruling grades, and because of its narrow profile, it created fume problems during steam days. Larger locomotives, such as the 60-class Garratt, were either prohibited or limited in load. Fortunately most heavy trains went through the tunnel in the downhill direction, towards Sydney and Newcastle.
Ardglen Tunnel