Three new short railway lines were sanctioned and constructed to connect to the dock from the west, east and south: these were the Humber Commercial Railway with a connection 5 miles away at Ulceby, on the former Great Grimsby and Sheffield Junction Railway (GG&SJR); the Barton and Immingham Light Railway ran from a junction near Goxhill (GG&SJR) connecting to the Humber Commercial line at a junction on the west side of the dock estate; and the Grimsby District Light Railway to Grimsby connecting via a junction onto the Humber Commercial line, on the east side of the dock estate.