The Metropolitan Tunnel (Glow Worm tunnel) is the 4th tunnel on the original Illawarra Line, and is a 624m single track tunnel nestled between the Helensburgh Tunnel and the Metropolitan Colliery. It is dead straight on a 1 in 55 grade (falling south). It also shared an unfortunate trait, build up of soot, smoke and steam which was dangerous for engine crew and passengers alike. It opened on the 3rd October 1888 and closed permanently on the 30th May 1915.
we went to explore these tunnels a couple months back but it had been raining and the tunnel was filled with water about halfway, we decided to come back when it dried up and it was amazing to see the history
Hope you enjoy thanks steemit !!
Follow and i will veiw your profile
