Closed : 1974

Engineering code : CAN

Length: - 992yds.

This rather remote tunnel can only be reached from private property. Both ends are gated but there was damage to the south portal when I went in 2005. There isnt a hug amount of use getting in though, as the tunnel is extrwemely muddy ('sounding' using my tripod gave an estimat of about 15 inches in places, I used a plank to make a little access, but that wasnt too good). The tunnel cuts between the head of two valleys, with an aqueduct carrying a stream over the south portal. Hence, streams now occupy the trackbed approaches to the tunnel.

Originally built by the Carmarthen and Cardigan Railway (which never got further than Newcastle Emlyn) the tunnel was intended to form part of the 'Manchester and Midland' route. This too was aborted, but constuction had progressed far enough for the line to form a through route between Carmarthen and Aberrystwyth. Through services stopped in 1966 after a landslip near Aberystwyth and the last goods dervices (mainly milk and cattle) were withdrawn in 1974.