Bridge over icy waters
The Poughkeepsie Railroad Bridge over the Hudson River on a cold February day. The shadow of the Mid-Hudson Bridge can be seen in the foreground.
The River at Poughkeepsie is about 60 feet deep in the middle where the shipping channel is located. Ice breakers come through to keep that channel open. They create the large chunks of floating ice. The Hudson is still a tidal estuary at Poughkeepsie; every 6 hours it changes the direction of flow from north to south. That change in flow creates interesting patterns with the ice chunks.