I have been removing around 30 cubic meters of dirt and broken rock that I have excavated manually from our backyard using a jackhammer. The access to the backyard is limited through a narrow corridor of only 1.2 meters wide and I have to carry the rubble down a steep driveway (about 30 degrees) to dump in the front yard around 60 meters away. I have removed almost half of the rubble using a garden cart but it is taking forever and I am exhausted.
What equipment/machine would you suggest me to use to make the job easier and faster considering the narrow access and steep slope?