After inviting worldwide tenders in 1922, the New South Wales Government received twenty proposals from six companies and on 24 March 1924; the contract (for Australian 4,217,721 pounds 11 shillings and 10 pence!) was let to the English firm Dorman Long and Co of Middlesbrough.



The general design was prepared by Dr J.J.C Bradfield and officers of the NSW Department of Public Works, while the detailed design and crucial erection process were undertaken by the contractors consulting engineer Mr (later Sir) Ralph Freeman of Sir Douglas Fox and Partners and his associate Mr. G.C Imbault.

As Chief Engineer of Sydney Harbour Bridge and Metropolitan Railway Construction from 1912, Dr Bradfield is regarded as the "father" of the Bridge as it was his vision, enthusiasm, engineering expertise and detailed supervision of all aspects of its construction which brought Sydney's long held dream into reality.


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