Railway Track Laying Souldrop Beds

THere are currently three railway lines running past Souldrop, two fast main lines and one used for freight. This is being expanded to four lines with an extra slow line being constructed. The main purpose of this line is to carry slow passenger traffic from stations between Bedford and Kettering (I believe that this is the case).. The work is done overnight and has been going on for many months. Last night 13/5/18 I decided to go down at about 10pm to see what was going on. It appeared that a train had used hopper trucks to release ballast onto the existing line and then a number of JCB type machines that could run on the rail lines were busy moving the ballast to the side of the track where the new line will run. A similar machine was dragging new sections of rail up to where they will be needed. I took a few pictures but the site was being lite by powerful lights and any type of photography was very difficult, so very sorry about the quality of the pictures.