There
are five volumes that we believe are from the 1950's which are from a
Bridge section engineer, from the time of the removal of the existing
tramway, to then be replaced with roadway for vehicular traffic.
We believe they were the calculations, items of reference belonging once to an engineer named Stephen C Coates. Circa 1950's.
Volume 1
Sydney
Harbour Bridge, Conversion of Tramway Area to Roadway. This consists of
notes and calculations with reference to the Ramp and piers at and over
the tunnel at Argyle Street.
Another section of
this volume is in relation to conversion of the Tramway to Roadway, ramp
at Ennis Road. Further engineers calculations etc. A smaller section
that is headed Gravity Abutment, Southern End.
Included are two newspaper cuttings from The Sydney Morning Herald, July 1958.
Volume 2
Steel Truss Quantities, Standard Reinforced Concrete Slab Decks (rough calcs).
Standard Piers (Headstocks and columns) for 28 feet between Kerb, Slab.
This volume contains numerous heading and calculations, also notes mentioning other bridges.
Volume 3
Principles of Prestressed Concrete Design.
This volume contains printed notes from the New South Wales, University of Technology, School of Civil Engineering.
18
number Technical reports and Bulletin brochures from McCalls Macalloy
Ltd, Temple borough Sheffield. Dated from 1952 to 1956. Also a number of
other technical brochures and trade literature.
Volume 4
This
volume contains a large number of technical specification drawings,
issued by the Department of Main Roads, from between the 1930's through
to the 1959's. Most are from the latter period.
Volume 5
Shot firing.
This
volume contains notes for a correspondence course in aspects of Shot
firing. These are for various levels of competence for different trades
etc.
Issued by the Department of Railways, New South Wales, Railways Institute.
Also
included is a letter of thanks from Whyte Hall British Products to Mr
Stephen C Coates at the Bridge Section Dept, of Main Roads, dated 11th
April 1957.
A very interesting collection of work notes.