What are Contours?
Contour lines are lines drawn on a map that connect points of identical elevation above sea level.
Contour lines depict the elevation and form of the terrain.
Why are Contour Lines Important?
Contour lines are useful because they show the shape of the ground surface on a map.
Understanding contours enables readers to see a hill on a map, complete with depressions for streams, hills, and narrow mountain ridges, among other things.
Contour lines are important for determining the elevation profile of a terrain or a specific land formation.
What are the Different Types of Contour Lines?
There are three types of contour lines on a map:
- Intermediate: the thickest contour lines and are often labelled with a number at a single location along the line. This shows the elevation above sea level.
- Index: the thinner, more common lines that connect the index lines. They normally do not have a number label. Typically one index line occurs for every five intermediate lines.
- Supplementary: appear as dotted lines, indicating flatter terrain.
Topographical Surveys
Employing the latest technology to capture and process data, we can deliver topographical surveys on paper or digitally depending on the client’s preference.
As well as topographical surveys, we also offer:
- Measured building surveys
- GPR (Ground Penetrating Radar) surveys
- Elevation surveys
- Laser-scanning and Point Cloud surveys
- Drone surveys
Our specialist team use their knowledge of the construction sector to ensure all information that is vital to design, planning and delivery of a project is captured regardless of specification oversight.
