Cleaning the Hudson
What: Contamination of the Hudson River with PCBs led to its designation as a Superfund site
When: 1970s to the present
Where: The Hudson River from Hudson Falls down to the harbor
Sandhogs, Fresh Air and the Holland Tunnel
What: First direct connection for automobiles between Manhattan and New Jersey. A National Historic Landmark.
When: 1922 to 1927
Where: Under the Hudson River, close to Soho, Manhattan
An Aqueduct for Gotham
What: New York City’s first aqueduct brought Manhattan 75 million gallons of water a day.
When: 1842
Where: It ran 41.5 miles, from Dutchess County to what is now the Great Lawn in Central Park