The city has greenlit a multibillion-dollar plan to remove trash from two waste management plants in Brooklyn by water.

The Sanitation Department says it will use a barge to carry trash from the Hamilton Avenue and southwest Brooklyn marine transfer stations in the Gowanus Canal. 

Officials says the plan will redirect around 200 sanitation trucks and 1,600 tons of waste each day.

The $3.3 billion contract covers 20 years.

It is part of a citywide plan to cut greenhouse emissions from waste transport and reduce truck travel around the five boroughs. 

Mayor Bill de Blasio says the sanitation initiative will shift the burden away from traffic-heavy areas.