50 tonnes of locomotive at 30 mph and a drop of 50 m into a water filled catch pit only 1 m deep! It better be some mighty strong plastic liner to withstand that impact if they hope to contain 'any oil released from the machinery'.
But it will beat the British record for the fewest number of trains in its lifetime - previously held by the branch to Llangurig (meant to be part of the mainline) of the
Manchester and Milford Railway which also only had one revenue train, but it ran both ways!