Our Experts Answer:
There are two types of survey marks. The first type are for marking a boundary or easement position and are usually wooden pegs or aluminium boundary disks. Aluminium pegs, lead plugs, iron spikes and other approved survey marks can also be used. A boundary or easement mark usually does not have the survey instrument positioned above it. The second type of mark is a traverse or witness mark. These are the survey positions used to start a survey (confirm the angles and distances), they are also the locations a survey instrument will be set up over to take a measurement to a boundary mark. A traverse or witness mark is usually a metal mark either an iron tube or iron spike, however it may also be an iron rod or a plaque (as is common on street corners especially in the centre of towns). You are not allowed to remove a survey mark. Removing a mark is also an offence under Section 55 of the Cadastral Surveys Act 2002. If you accidently remove one or expect to need to remove one then contact a registered surveyor immediately.
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