Trench forming excavator attachment - GIF

[Altair]

Trench forming excavator attachment.



Previously:

V-trenching excavator - GIF
Excavator-mounted trench cutter - GIF
Irrigation trench cutter - GIF
Tractor trench former - GIF
Chain trencher - video

[hemmjo]

Where do you ever find a site like that with perfect conditions of material density, moisture content, lack of rocks to be able to perform an operation like that?

Looks like it is perhaps intended to catch run-off coming from the right to protect a town of greenhouses down hill on the left.