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Where did all the soil come from to bury the portal
Hi. The spoil came from the reclamation of the tips in Blaencwm.
The infill came from the reclamation scheme that was happening at the same time as the tunnel was being sealed in 1979.
Where did all the soil come from to bury the portal
Hi. The spoil came from the reclamation of the tips in Blaencwm.
Where did all the soil come from to bury the portal
Hi. The spoil came from the reclamation of the tips in Blaencwm.
The infill came from the reclamation scheme that was happening at the same time as the tunnel was being sealed in 1979.