Records of Humber Conservancy and the Humber Ports (Records deposited by Associated British Ports and its Predecessors) > Humber Conservancy > Representations to Parliament by the Humber Conservancy Board > Humber Bridge Bill—Session 1931 > Humber Bridge Bill, 1931: Observations of a Neap Tide by the Humber Conservancy Board in vicinity of proposed Humber Bridge