A curious contraption has been keeping the river in Baltimore clean since 2014. Dubbed “Mr. Trash Wheel,” the machine is found in the city’s Inner Harbor, and it works just like a water wheel, using the current of the river to move and pick up trash from the water. The trash is then placed in a dumpster barge, which is replaced by a new one once it’s full. If the current isn’t strong enough, solar energy is used to power Mr. Trash Wheel.
Mr. Trash Wheel got a new colleague in December last year: Professor Trash Wheel, located at the end of Harris Creek.
Photo from the Waterfront Partnership of Baltimore website.