Drainage and Irrigation Mapping Service
Sample map of an actual green.  An irrigation line can be seen along the outside edge of the green, passing by the sprinkler heads.  Two
drainage 'trees' are clearly mapped inside the green.  The gray hashing indicates the area covered by radar.  Surface features were also
located (sprinkler heads, sprinkler valves and the edge of inner fringe).
Photograph of the green in the sample map.
This detailed blow-up shows both the
drainage lines and irrigation line (in black)
along with the depth from surface at intervals
along their paths.  The edge of the inner
fringe is also shown (in green).  The gray
hatching indicates the radar-surveyed area.
Virtual Underground uses state-of-the-art array ground penetrating radar to accurately map the precise location and depth of underground
features.  A series of passes with the system is used to create a full coverage image of the underground with data every 4-5 inches across the
entire green.  The located lines and features are then placed on a map and printed out, or saved in electronic format such as CAD or pdf.  

This technology is far superior to previous generation single-antenna systems that typically take data every 2-3 feet and only provide
"spot-locating" which can easily miss connections, fail to identify multiple networks or see details such as crushed pipes or cleanouts.