Tuesday, 27 June 2017

Botanic Gardens, survey pillar

This survey pillar is located in the Botanic Gardens overlooking Sydney Harbour between Bennelong Point and Mrs Macquaries Point. The plaque reads: "This Survey Observation Pillar has been established to monitor Opera House Deflection movements and provide local control station for Sydney Integration Surveys. May 1976." Also known as triangulation stations or triangulation pillars, these are used for long term monitoring and observations.
at

13 comments:

  1. Taken For GrantedTuesday, 27 June 2017 at 04:27:00 GMT+10

    Interesting looking survey marker. Bet there is a story about how it is used.

    ReplyDelete
  2. William KendallTuesday, 27 June 2017 at 07:33:00 GMT+10

    Quite a spot!

    ReplyDelete
  3. RajeshTuesday, 27 June 2017 at 14:33:00 GMT+10

    Interesting shot.

    ReplyDelete
  4. JoTuesday, 27 June 2017 at 17:36:00 GMT+10

    What a neat looking working object nestled in the greenery.

    ReplyDelete
  5. TomTuesday, 27 June 2017 at 19:42:00 GMT+10

    ...Jim, what a nice view from this point. Surveying has surely changed over the years, GPS has been a gane changer! Thanks for stopping by, enjoy your week and please come again.

    ReplyDelete
  6. Reader WilTuesday, 27 June 2017 at 21:22:00 GMT+10

    Thanks for visiting my blog. It is always good to read some interesting facts of Australia! Thank you!

    ReplyDelete
  7. magiceyeTuesday, 27 June 2017 at 21:23:00 GMT+10

    Lovely colours captured!

    ReplyDelete
  8. Photo CacheWednesday, 28 June 2017 at 01:11:00 GMT+10

    Who knew? So many things in this world that I don't know about.

    Worth a Thousand Words

    ReplyDelete
    Replies
    1. JimWednesday, 28 June 2017 at 10:22:00 GMT+10

      It's amazing what can be around you but sometimes you don't notice.

      Delete
  9. betty-NZThursday, 29 June 2017 at 10:55:00 GMT+10

    I love tripping across things like this. But I do wonder what Opera House Deflections are and how they are measured!

    ReplyDelete
  10. NCSueThursday, 29 June 2017 at 21:46:00 GMT+10

    Deflection movements? Oh my - not sure I like the sound of that! What does that MEAN!
    Thanks for sharing at http://image-in-ing.blogspot.com/2017/06/shades-of-purple.html

    ReplyDelete
  11. SharonFriday, 30 June 2017 at 01:34:00 GMT+10

    This is new to me! I'd love to see the botanical gardens.

    ReplyDelete
  12. DinaSaturday, 1 July 2017 at 05:59:00 GMT+10

    That's so cool!

    ReplyDelete

Thanks for visiting my blog. Please leave me a message. Jim.