My Surveying Experience



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I have experience with the following

land surveying

Share Your Survey Experience

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My Survey Life

My Experience Level

Earned points: 1191
First Post
Feb 25, 2019
Story Teller
Mar 21, 2019
Social Surveyor
Jun 6, 2020
First Photo
Jul 3, 2021


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  • Hello Rezas,


    My Name is Hayden Howard and I'm Vice President for a surveying and mapping company called CompassData.  CompassData conducts various field surveys but we are best known for our Ground Control Point surveys (GCP archive)  We work globally and have a partner’s program network with surveyors like yourself that we work with to get our customers GCPs globally.


    I'm currently looking for surveyors that are interested in joining our partners program in your region.  I would recommend that you take a look at our website and then let me know if you are interested in working with CompassData.  If you are interested please contact me via e-mail or phone.


    I look forward to hearing from you!




    [email protected]


  • hello sir,
    i have no use scaner so i no idia.
  • Concerning High Rise, no GPS is not good enough, remember that each floor as it is stacked must be compared to lower floor, and brought into tolerance (about 0.01' per floor, but no more then 0.015) GPS is centermenter accuracy or about 0.03. Craftsmen working on a high rise will detect error and lose confidence in Surveyor, it is critical that various Crafts trust the surveyor to arbitrate differences in measurement, failure would cost the developer in lost productivity and concerns for extras or change-orders. Elevations should not differ more the 0.005 per floor and no more then 0.02 overall. I would refer you to a book, but I have not had time to write it.

    On tunnels air currents have no discernable affect on measurements. If using a gyro azimuth finder these are encloused
    and report accuracies of 1-3" of arc within minutes
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