Topographic surveys are an essential part of the design, build and construction process. They are required by many municipalities at the design phase, prior to construction to determine the existing elevation changes, grades, slopes, sight lines, and other site conditions. Topographic surveys are normally done in conjunction with or to supplement boundary surveys and are used by design professionals (civil engineers, architects, planners) to generate a site plan that meets the client’s needs and is cost effective. These surveys are critical to providing a realistic account of the existing site conditions with respect to terrain, elevation, and other improvements, to developers, architects and engineers.
- Terrain (vertical relief)
- Bodies of Water/Water Courses
- Buildings and Physical Improvements
- Visible utilities and related mark-out
A topographic survey shows the location, size, and height of these types of improvements, as well as changes in elevation. In addition to new buildings and structures, topographic surveys are also commonly used in for building expansions and redevelopment projects where the site was previously demolished.