Today’s INSIGHT: ‘Benchmark’ Is NOT A Mark On A Bench, It Comes From Surveying.

by Anura Guruge


Click to ENLARGE & read here. Wikipedia: en.wikipedia.org/wiki/Benchmark_(surveying)

The post shown at the top, on Facebook this morning, was what got me thinking. I had seen the marks & knew them to be surveying marks. DID NOT know that they were the ‘benchmarks‘. Wow.

Did you know? That is why I am sharing. Neat.


Related posts:
Check Categories ‘Books, ‘Brains‘ & ‘THINK‘.


by Anura Guruge


3 thoughts on “Today’s INSIGHT: ‘Benchmark’ Is NOT A Mark On A Bench, It Comes From Surveying.

  1. TasView

    I’ve noticed one of these marks on the side of the Hobart GPO, I thought it was to indicate ground level that’s where it’s located – not a very high benchmark to reach, lol. Thanks for the insight 😀

    Reply
    1. Anura Guruge Post author

      Appears that surveyors insert an angled metal bracket into the horizontal cut. That serves as a bench for a leveling bar — possibly a spirit level. They then used that as a measured/known elevation point.

      Reply

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