It was George Walker and Col Landmann who planned and built the first railway line into London. The railway, nearly four miles long, was to be placed on a brick bridge 1 of 878 arches. This 2 way to build a railway had several advantages. It would get round the problem created by the 3 roads and lanes that intersected the route and would require less land. The first brick was laid on April 4, 1834. At the same time the company purchased a plot of 4near London Bridge for Ł7500. A huge army of labourers, engineers and builders moved in to begin the 5 task of building the bridge and laying the track. Across the fields little townships of huts sprang up to house the railway workers.