Pier 5 Pop Up Wetland and Plants Cleans the Water that Runs off the Highway This extraordinarily creative “best management practice” captures stormwater runoff from the elevated Major Deegan Expressway with a “pop-up wetland”. The wetland is filled with ordinary native plants which remove pollutants, allowing clean water to drain to the river.  Rain passes … Continue reading Pier 5 Pop Up Wetland Plants Clean the Harlem River