Containers are 8', 8' 6", 9', 9' 6".
There may even be 10' and 10'6".
I added a video of a train going up through the tunnel onto Youtube today...
It's kinda long but I like the audio 8)
There's been a crew working at Rhyndaston over the winter. They've cleared the line and the area around the tunnel entrance of all vegetation. I am told it is in preparation for a retractable door to be installed over the tunnel’s entrance, a door which is supposed to help funnel smoke fumes away. I've been waiting for it to be finished, I'm curious to see how it works.
Any futher news about developments/improvements on the tunnel?
The Rhyndaston Tunnel is 955m. The longest tunnel in Australia is the Ski Tube at 6303m - the longest tunnel on a "traditional" railway is the Bylong tunnel (near Ulan, NSW) at 1975m. New Zealand has three tunnels longer than 8000m - Otira, Rimutaka and Kaimai, the latter at 8879m is the longest in the Southern Hemisphere. Tunelão tunnel in Brazil is 8645m, the longest tunnel in South America.I'm afraid these are not even close to the longest. Tunnel 4 of the Cuajone line in Peru is 14,700 meters long.