Records of the Technical Services department relating to the City Engineer, including authority to set up posts to preserve foot passage, 1736; Order from the Common Council to remove projecting signs, water spouts and so on to prevent obstructions, 1764; abstract of streets, lanes, courts, alleys and so on within the City showing the position and depth of public sewers, by William Haywood, surveyor, 1847; papers regarding the scheme of Frank Forster, engineer, for the drainage of districts north of the Thames, 1850-1851; papers regarding the schemes of the Great London Drainage Company, 1852-1854; report by Joseph Bazalgette and William Haywood on the sewage and drainage north of the Thames, with related papers including plans, objections and correspondence, 1853-1855; report by Joseph Bazalgette and William Haywood on the sewage and drainage south of the Thames, 1856; plans by Joseph Bazalgette in connection with Southern high level sewers, 1861; papers regarding the construction of the Commissioners of Sewers' new offices at Basinghall Street, including reports, agreements, plans, photographs and correspondence, [1860]; papers regarding the Central London Railway including acts and bills, petitions, correspondence, memoranda, plans, progress reports, evidence and invoices, particularly for Bank, St Paul's and Chancery Lane stations, 1871 - 1909; papers relating to the Royal Commission on London Traffic, consisting of interviews and evidence presented by City officials including the mayor, engineer, surveyor, chair of Bridge House Estates Committee, Public Health Department medical officer, City Solicitor, Superintendent of Police and the Director of the Great Northern Railway Company, 1903-1904; regulations for the laying of mains and so on beneath the public streets and for opening and closing pavements in the City, 1909; annual report of the London and Home Counties Traffic Advisory Committee, 1926-1927; papers relating to the clearing and repair of war damage, 1941-1946; articles and notes relating to the history of street lighting in the City of London, 1941-1976; photograph albums recording various streets and walkways in the City, focusing on street signs, [1990]; the City Engineer Quality Commitment manual, 1993 and consultation paper The Way Ahead: traffic and the environment, 1993.
Also papers relating to the numbering and naming of City streets, including register of numbered and renamed streets, 1853-1899, lists of streets with corrections to their names, 1878-1982, London County Council orders and correspondence, 1898-1955, Greater London Council orders and correspondence, 1971-1979, orders for the renaming of specific streets, 1986-1997.
Also papers relating to the Holborn Valley Improvement works, including acts and bills, papers of the Improvement Committee, observations and reports, memorandums, correspondence, applications for jobs, publicity material, estimates and abstracts of costs, engineer's financial accounts, technical measurements and other data, contracts, notebooks, speeches, lists of properties affected by the works, sales catalogues, correspondence with gas, water and telegraph companies, photographs, papers relating to statuary on the bridge including the Prince Consort memorial and papers relating to the exhumation of St Andrew's churchyard and the removal of remains, 1863 - 1873.
Papers relating to street easements including registers of petitions and applications, 1849-1899; registers of licences for hoards and scaffolds, 1858-1897; register and rental of licences for easements, 1899-1902; counterfoil licences for easements under vaults, 1870-1899; counterfoil licences for easements under coal plates, cellar flaps and so on, 1870-1899; counterfoil licences for easements over private lamps, signboards, cranes and so on, 1870-1899; counterfoil licences for easements over sky-signs, 1891-1896; counterfoil licences for easements over and under, 1899-1907; counterfoil licences for easements over reflectors, 1899-1907; counterfoil licences for easements upon and beneath vaults, 1907-1954; counterfoil licences for easements over lamps, signboards, cranes and so on, 1907-1939; notices regarding cellar flaps, 1881-1891; notices regarding projections, issued under the Sewer Act, 1899-1932 and indexes to registers of petitions and applications, 1849-1899.