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Cadastral land surveyors are licensed by state governments. In this support group, Land Surveyors United members can share discussions, tips and tricks involved with Cadastral Surveying

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DOUBLE PROPORTION MADE COMPLEX

I found this paper on Cadastral.com by Jerry L. Wahl which addresses the complexities of double proportion in land surveying. It is very informative. DOUBLE PROPORTION MADE COMPLEX Jerry L. Wahl  Branch of Cadastral Surveys  Bureau of Land Management  California State Office  2800 Cottage Way, E-2841  Sacramento, California 95825 ABSTRACT Our ever increasing ability to accurately measure make it more critical that we understand the geodetic and legal concepts behind some common survey…

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Cadastral Surveying Support Group

 

 
 

Cadastral land surveyors are licensed by state governments. In the United States, cadastral surveys are typically conducted by the federal government, specifically through the Cadastral Surveys branch of the Bureau of Land Management (BLM), formerly the General Land Office (GLO).[10] In states that have been subdivided as per the Public Land Survey System (PLSS), the BLM Cadastral Surveys are carried out in accordance with that system. This information is required to define ownership and rights in real property (such as land, water, mineral, easements, rights-of-way), to resolve boundary disputes between neighbours, and for any subdivision of land, building development, road boundary realignment, etc.

The aim of cadastral surveys is normally to re-establish and mark the corners of original land boundaries. The first stage is to research relevant records such as land titles (deeds), easements, survey monumentation (marks on the ground) and any public or private records that provide relevant data. The job of a boundary surveyor retracing a deed or prior survey is to locate such monuments and verify their correct position. Over time, development, vandalism and acts of nature often wreak havoc on monuments, so the boundary surveyor is often forced to consider other evidence such as fence locations, woodlines, monuments on neighboring property, parole evidence and other evidence.

Monuments are marks on the ground that define location. Pegs are commonly used to mark boundary corners, and nails in bitumen, small pegs in the ground (dumpys) and steel rods are used as instrument locations and reference marks, commonly called survey control. Marks should be durable and long lasting, stable so the marks do not move over time, safe from disturbance and safe to work at. The aim is to provide sufficient marks so some marks will remain for future re-establishment of boundaries. Examples of typical man-made monuments are steel rods, pipes or bars with plastic, aluminum or brass caps containing descriptive markings and often bearing the license number of the surveyor responsible for the establishment of such. The material and marking used on monuments placed to mark boundary corners are often subject to state laws.

 

 

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  • Hello am Theophilus in Ghana, 24yrs and Land Survey (Engineering).And I love to join this group so I can learn more about Cadastral Surveying...honor

  • read my deeds! hello guys thanks for inviting.
  • Government Professional
    I Use AutocadMap 3D, it has the classic Autocad + survey features + map generation + geographical coordinates + database management, in my opinion far better than Arcgis, Arcview, Mapinfo and you can export info to most of them.You can go to the free options to view or manage the gis like Tupac says, there are some free programs for Windows too.
  • Thank You Tupac!!! Please tell me more about Civil 3D(by Autodesk).....What improvements those it have over the

    Normal Autocad?

  • What Software can be used to manage cadastral information effectively.

    I really need suggestions.

    Thanks!

  • Vendor

    i can feel it...this is going to be a great group!

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