What is the main purpose of a topographic survey?

The main purpose of a topographic survey is to represent land contours and elevations. This type of survey captures the detailed features of the terrain, including hills, valleys, and other physical characteristics of the landscape. It produces a map that shows not just the horizontal positions of land features but also their vertical dimensions, which is crucial for various applications such as land development, civil engineering, and environmental studies.

Topographic surveys are vital for projects that require an understanding of how the land’s shape will affect construction or land use, allowing for informed decision-making about design, drainage, and any necessary changes to the land. The focus on both contours and elevations distinguishes it from other types of surveys, which might center on land value, existing structures, or property boundaries, but do not provide the detailed terrain information that topographic surveys do.