Topographic Surveys (often called topo surveys) are surveys of land to provide information about the physical and other features of land.  These surveys are required as the base information from which to plan and design new roads,  bridges,  infrastructure,  houses, buildings and subdivisions.  

 

Almost any design or construction job starts with topographic information. Progress with construction often requires a surveyor to set out the works and the project often ends with an asbuilt survey of the completed works.