A majority of the projects that we take on at Carroll Engineering (CEI) begin with a Topographic Survey. An accurate and thorough topo is an essential building block that begins the design/build process. Whether it be a small targeted survey when moving or adding public classrooms at schools, or full-site surveys of entire campuses and other large properties, having a topographic survey that accurately depicts the existing site conditions is essential. CEI also coordinates with aerial mapping agencies on large sites where design level surveying is not critical in some areas of the project, but planning-level details of the site will be helpful for future construction.