How big is it?

The client needed to know how much coal ash had built up over the decades at a plant that no longer used coal for steam generation.  Heavy vegetation made parts of it difficult for land surveying.  Drone mapping determined that this stockpile would need over 9000 dumptruck loads to move it.


An as-built comparison

The Project Manager needed to know how well the finished project meet the architect's drawings for this public sorting center for the county landfill.   About 200 nadir (straight down) photos were stitched into an orthomosaic from which the site dimensions and contours were overlaid on the architect drawing.  

Interactive Example of Drone Mapping

Click the blue arrowhead below to collapse the information panel, and use the +/- control to zoom  into the site.  Click/drag the image back to the left as you zoom to center the construction site in your view.   Notice that you can zoom in tight enough to count the concrete block in the foundation wall where it isn't covered with plastic sheet.  

This orthomosaic map is one of the lower cost and more useful examples of drone mapping.  It can be used for stockpile and cut/fill calculations, length, height and volume measures, safety inspection and documentation, field notes for follow up, team coordination and planning, and much more.  All from a desktop or iPad for walkaround sharing.