24.2 : Types of Surveys

Surveys are essential for marking property boundaries near water bodies. Different types of surveys are defined, each with its own function. Land surveys mark the property boundaries, while route surveys determine the position of properties on nearby highways. Topographic surveys create maps by capturing the three-dimensional features of the land. Hydrographic surveys focus on the shapes of underwater areas and the movement of streams through the properties. Mine surveys determine the relative locations of geological formations beneath the surface. 

Control surveys establish horizontal and vertical controls to create a reference network over the survey area. Horizontal control, which relates to property lines, road centerlines, and other prominent features, provides a reliable framework. Vertical control, with its involvement of benchmarks, which are permanent points with precisely measured elevations above or below sea level, ensures a reliable reference. 

Construction surveys, by locating specific areas and providing elevation points, provide a reliable foundation for building construction. Each type of survey serves a unique purpose, ensuring accurate and detailed information is available for various land-related activities and developments.