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agp - Long Tunnel aka T4 [7 of 7]
T4 aka Tunnel Mawr - the longest tunnel at 924 ft [280m] and curved.
Looking south, so this is the northern portal. Note the substantial retaining wall and the little "layby" - another good place for a sit & a snack.
Walking through this wasn't especially pleasant if you didn't like dark holes ...
Looking south, so this is the northern portal. Note the substantial retaining wall and the little "layby" - another good place for a sit & a snack.
Walking through this wasn't especially pleasant if you didn't like dark holes ...
Marco F. Delminho, aNNa schramm, Annemarie, Xata have particularly liked this photo
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The approach to the southern end is over a speed restricted crossing and through a notoriously wet cutting. Drivers need to be sure that they can complete the tunnel passage before they begin ... there are special operating procedures if a train fails in this tunnel, to ensure no-one gets suffocated by smoke ...
HWW Sara
a beautiful image
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