IS19.47 DM2 - The Existential Crisis Facing Survey Reference Marks Can The Cadastre Cope Webinar

General Development
Start Date
01 July 2020
End Date
01 July 2020
Own office
Contact Name
Institution of Surveyors NSW
Contact Email

CPD Event Code: IS19.47-DM2
CPD Points: 1 Cadastral

Please only register for the recorded webinars if you haven't viewed them before. CPD points cannot be claimed twice for the same event. If in doubt, please email to check if you have previously attended.


"The Existential Crisis Facing Survey Reference Marks (Can The Cadastre Cope?)"

Presented by Fred De Belin, Registered Land Surveyor / Team Leader Surveying - Project Development, City of Ryde Council

This is a recorded webinar. Presented live on Friday, 24 April 2020

Eleven years ago, in June 2009, the survey team at the City of Ryde audited an area comprising 25 streets to ascertain the prevalence and availability of underground survey reference marks.

Two thirds of the underground marks were gone!

It was felt that the immediate need was to preserve those marks which were still existent. Metal cover boxes were trialled. This presentation firstly discusses City of Ryde’s attempts at preservation, and secondly discusses the state of marking of the cadastre for future surveyors.

Note: In keeping with the requirements of the ISNSW CPD Policy, you will be required to fill out a questionnaire from the presenter.


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