River into the Sea

Our marina is located at the mouth of the Charles river.  The Gridley dam, with three individual locks for boat traffic, controls the surface level of the river basin, and  prevents too much sea water from flowing into the Charles river during high tide.
In these pictures you can see water on the fresh river side has been accumulating  ice,  while the deeper and saltier harbor side, just a few feet away, does not.
But don't worry, we'll have some sea ice before long.
-- Chris
River side of the Charles River (Gridley) dam
Ocean side of the Charles River (Gridley) dam

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