The Inner Harbor Water Wheel, or “Mr. Trash Wheel” to locals in Baltimore, combines old and new technology to harness the power of water and sunlight to collect litter and debris flowing down the Jones Falls River.
Since May 9, 2014, it’s removed 331 tons of waste, collecting as much as 38,000 lbs. in a single day.
The river’s current provides power to turn the water wheel, which lifts trash and debris from the water and deposits it into a dumpster barge. When there isn’t enough water current, a solar panel array provides additional power to keep the machine running. When the dumpster is full, it’s towed away by boat, and a new dumpster is put in place.