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.
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.