By 
We have reached an impasse.
The problem is the silting in of Hudson River channels, harbors, marinas, coves and bays that have filled with so much silt that they cannot be navigated or used for any positive purpose but that of marshland.
We have reached an impasse.
The problem is the silting in of Hudson River channels, harbors, marinas, coves and bays that have filled with so much silt that they cannot be navigated or used for any positive purpose but that of marshland.
