I understand there was a culvert, which ran under the Bedlington - Choppington railway line, under the gardens, under the pit railway embankment and finally into Willow Burn (Barnton burn). The culvert was open, but in 1889 was piped into a 18" drain. In 1900 the culvert became blocked and Blacksmith, Middle Row and Chaple Row was flooded. The flooding lasted for some days, until the engineer freed the blockage by blowing up the pipe where the blockage was. There are two stories how this was done, 1) Explosions placed on top of the pipe, which was under water 2) A miner crawler into the pipe from the pit side to where the blockage was and placed the charge. The picture shows where the pipe was blown up. A great photo.