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t Deeper in the engine shaft, the construction of an access bridge was necessary to span a twenty foot gap across the shaft. Getting across initially with nothing to stand on presented a problem but by way of a grappling hook, A heavy line was secured and safe enough for two men to clip onto and haul themselves over. After the footings on the other side were constructed, the three - twenty five feet long main bearers were lowered down the shaft and hauled into position. With the decking in place and safety rails added, further inspection work of the shaft could take place. |