A topographic survey indicates the relative elevation of the land, and shows all significant improvements (i.e. buildings, roadways, utilities) throughout the limits of the area surveyed. A topographic survey is typically illustrated with contours lines and spot elevations. Contours can have varying accuracy based on the contour interval (the vertical distance from one contour line to another) for which the map was prepared.

When you may need this type of service.

• When designing or constructing improvements to raw land
• When designing or constructing improvements to existing facilities and buildings.
• When providing record drawings to document completed construction for future reference
• When analyzing a site for development