Accessory for excavation of a ditch and related methods

An accessory for excavation of a ditch along a road, the accessory being mountable on a mobile device and comprising:

• a grating assembly comprising:
• a rotor having a rotation axis;
• and
• a plurality of grating members projecting outwardly from an external surface of the rotor and configured for expelling rubble from the ditch;
• and
• an arm assembly connected to the grating assembly, the arm assembly comprising:
• a base movably connectable to the mobile device, movement of the base with respect to the mobile device allowing the connected grating assembly to contact the road;
• an elongated arm having a proximal end and a distal end;
• an arm pivot assembly, the proximal end of the arm being connected to the base by the arm pivot assembly for enabling pivoting of the arm with respect to the base, so as to align the rotation axis of the rotor of the grating assembly with a ditch axis;
• and
• rotating means cooperating with the distal end of the arm and further engaging the rotor of the grating assembly to enable rotation thereof with respect to the arm assembly, so as to excavate the ditch upon displacement of the mobile device along the ditch axis.