The kinds of surveys that are conducted
The kinds of surveys that are conducted would surprise most people, and some things that you might think are surveys aren't surveys at all. Instead of the standard two-dimensional measuring from one point to another, today's surveys not only measure the land, but also the air and water above and below us.The most common and well-known surveys conducted today are boundary surveys, mortgage surveys, and topographic surveys. An ALTA survey, which is actually a shortened title for ATLA/ACSM, combines elements of all three, with a set of standards put forth jointly by the American Land Title Association and the American Congress on Surveying and Mapping.
ALTA surveys are most commonly used for commercial properties; by having a universal standard, companies can assure themselves of the level of thoroughness and be confident when the results are guaranteed by an ALTA survey.Boundary Surveys are exactly what the name describes: a survey to establish the true boundaries of a given property. Through previously recorded markers and the establishment of new landmarks, a surveyor will establish the true boundaries of a property and then mark the corners and lines of the plot, using markers such as iron rods, pipes or concrete monuments in the ground, or nails set in concrete or asphalt. In the past, piles of stones, trees or other, less permanent markers were used, which led to confusion when the markers were either destroyed or changed.Mortgage Surveys are simple surveys that, for the most part, determine land boundaries and building locations.
By the taking of three-dimensional positions on specific points on an object, then letting a period of time pass before retaking and measuring the points, a determination of whether a structure is moving can be made.Although it may seem counter-intuitive, land surveyors are also responsible for performing Hydrographic and Bathymetric Surveys. Hydrographic surveys collect data relating to any body of water, and the data collected may include the water depth, bottom contours, the direction of the current, observing and recording high water marks and water levels, as well as location of fixed objects and landmarks for navigational purposes. They can also be conducted to gather information for engineering or resource management purposes, such as hydro power plants. Bathymetric surveys deal exclusively underwater, and map the seabed profile.Geodetic surveys fall under both the land and water category, as they map out the shoreline.、
Thomas Jefferson commissioned a geodetic survey in 1807 as the Survey of the Coast. Progress on the survey moved slowly at first, as they did not even have the proper instruments to perform the survey until 1815. It still exists today as the National Geodetic Survey and its responsibilities now include the interior lands of the United States as well as its coasts.Wetlands Delineation and Location Surveys belong in a category Water Purifier Suppliers all on their own; they are performed when construction work that is being planned on or near a site containing defined wetlands. Local, state, or federal regulations vary, but wetlands are usually classified as areas that are completely inundated with water more than two weeks during the growing season. Boundaries of wetlands are determined by observing the soil colors, vegetation, erosion patterns or scour marks, hydrology, and morphology of the land in question. Data is then collected on the locations of the placed flags and a plan is drawn to reference the boundary of the wetlands and compare it to the proposed boundaries of the surrounding plots or parcels of land and the construction work proposed within.While there are many more forms of land surveys, to list them all and their attributes would result in a very long article. The options presented above are simply the most common forms of land surveys, and the ones that the general public is most likely to encounter.
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