This collection consists of material created by the Clifton Suspension Bridge Trust (CSBT) and its predecessors during the course of its business. Also included are papers created by the Bridge's consulting engineers and deposited with the CSBT, these are:
Howard Humphreys & Sons and Howard Humphreys & Partners (1910 - 2006)
Flint & Neill Partnership/Cowi (2006 - )
In February 1972 Howard Humphreys & Sons, consulting engineers to the Clifton Suspension Bridge Trust, prepared these reproductions of tracings made by F. Gleadow M.I.C.E in October 1903. Mr Gleadow acted as surveyor to the Clifton Suspension Bridge Company. His tracings were, in turn, made from original tracings lent by Messrs. Cochrane & Company of Woodside Iron Works, near Dudley, Staffordshire who were contractors to the bridge at its erection. This series consists of unannotated velograph tracings and paper diazotype copies of Gleadow's 1903 tracings as well as some photocopies of original 1860s plans.
Gleadow, Frederic, (1859-1920), engineerAirey's report of the examination of the bridge on 19 and 20 September 1883, principally concerning the state of the decking and recommending that the top of the deck be replaced with English glen timber and covered with tar and asphalt.
Airey, Thomas, engineerThere is note stating that there are known errors on this drawing.