The other day I went on an excellent tour of the Queensway road tunnel in Liverpool that runs under the river Mersey to Birkenhead.
It's quite cheap and well recommended and goes to show there is more to a road tunnel than just a hole in the ground!
The tour takes you around the George's Dock building where the massive ventilation plant is located and also the control room. The tour also takes you briefly onto the road deck (no photography here for H&S) and under the road deck in the air drifts. The centre section under the road deck was designed to be used as a tramway but the plans never came to fruition. The space is only used for ventilation and also house the emergency shelters.
Got a bit of video but not much. Captured some footage of the more interesting bits. Was quite dark so the ISO was cranked up to high heaven! (Should have brought along my 35mm f/1.4)
Bit of info on the tunnel:
Construction: 1925–1934.
Opened: 18 July 1934.
Length: 3.24 kilometres (2.01 mi).
Diameter: 44ft (13.4m)
Road deck width: 36ft (10.97m)
Lanes: 4 (two per direction)
