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Topographic Land Surveys: A Guide

The land survey that almost all individuals are aware of, a survey marking the boundaries of a little piece land is just one of a variety of types of land surveys. A topographic area study can be utilized by homeowners or those in the development industry or environmental sector. The purpose of the topographic land survey is to identify all the natural and artificial features of the land. These can sometimes include hills, ravines, structures, woods, walls, buildings, and also other changes on the natural state of the land. This survey also identifies the place, dimension, and vertical height of these features and the gradual changes in altitude. Topographic surveys are occasionally known as contour studies, and they are usually performed before land ownership changes or may be when the property owner wants to do some developments.

Unlike boundary survey, a topographic property study focuses more on altitude than on horizontal measurements. In this survey, most measurements are carried out using a surveying quality GPS unit or an electronic EDM device. The outcomes of the study are not designated using levels or other attractions as in other ordinary surveys. Alternatively, this survey makes use of contour lines on maps of a location. Today, sophisticated computer packages enable electronic designs of these maps, as well as interactive elevation view of the land. The data may be used in AutoCAD programs, where it could be controlled by designers or engineers to show the way the topography will transform through the planned changes.

Topographic land studies have several uses. In some cases, they might be required from the government. Technicians and designers use such surveys to design buildings or other changes to be done on land, as current features may affect their design or decisions on where you should locate a building on a property. It is necessary to commence all construction works with a topographical survey so that you can determine the starting point and future improvements.
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Topographic surveys may also be used when deciding the proper policy for drainage ditches, grading, or other features, utilizing the natural topology as the basis of such changes. From the survey, you will determine any slopes within the land which can influence any construction plans and usually 8-degree slope is suitable for construction while a slope that exceeds that will have high requires during construction thus being expensive. A topographic survey is, therefore, essential before the commencement of any building works.
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Aside from undeveloped land or land with structures, this kind of land study can also be beneficial to a place which had been used and now needs to undergo redevelopment. For instance, a topographic survey is necessary where a building has been demolished, a quarry land, landfill or another place where activities on land may lead to topographical changes. In such cases, this survey will provide an accurate view of the way the land has been changing with its use, enabling greater planning and potential use.