IMMINGHAM, seaport, Lincolnshire, England, on the south shore of the Humber estuary, 9 m. S.E. of Hull and 5 m. N.W. of Grimsby. The docks belong to the L.N.E. railway company and consist of a square basin and two long arms (including a graving dock), of a total area of 45 ac., with 5,40o ft. of quayage; and 47 to 43 ft. depth of water. This port was built (1906-12) here be cause the deep water channel of the Humber leads right to the dock gates and vessels can enter and leave unaided at all states of the tide. A new town, which has grown up round the docks, is connected by electric tramway and light railway with Grimsby. Pop. (1931)