Kristy Ann and Ruth Reinauer end the week at the anchorages in the North River, with the Dean Reinauer also sitting north of the bridge. But the Coast Guard icebreaker Sturgeon Bay, which anchored Thursday night off 72nd Street, got underway at daybreak, travelled up the river to the Newburgh-Beacon Bridge, and now has returned to its base in Bayonne. Its sister ship, the Penobscot Bay, its upriver, near Castleton-on-Hudson.

Donjon Marine kept up with the flow of municipal paper waste, hauling another load from Pier 99 to the Pratt Industries recycling mill in Staten Island.

Buchanan 5 came through pulling a string of hopper barges and barely making headway against the ebb tide. Buchanan services the massive Tilcon Clinton Point quarry, hauling barges full of crushed stone south for the construction industry.

Late in the day, a pair of Marine Cobra/Viper attack helicopters flew up the river at a few hundred feet altitude. They were too low to get picked up by FlightRadar24 but McGuire Air Force Base in Lakehurst NJ hosts a Marine Reserve Helicopter Light Attack Squadron and this could be a training mission from there.