where does the first river originate?
Long Island Sound
Introduction
Because of its connection to Long Island Sound, it was once also known as the Sound River. 
how much is robert f kennedy bridge toll drivers pay $9.50 per car or $4.00 per motorcycle for tolls by mail. Customer Service Center pay $6.12 per car or $2.66 per motorcycle. which locations are connected by this bridge? The bridges link the boroughs of Manhattan, Queens, and the Bronx. does it traverse a river? Yes -  East River, Harlem River, Bronx Kill
Long Island Sound to Hell Gate Upper New York Bay The Battery
East River East River East River
Formation and description Introduction Formation and description
The upper portion (from Long Island Sound to Hell Gate), running largely perpendicular to the glacial motion, is wide, meandering, The waterway, which is actually not a river despite its name, connects Upper New York Bay on its south end to Long Island Sound on its north end. The river is navigable for its entire length of . In 1939 it was reported that the stretch from The Battery to the former Brooklyn Navy Yard near Wallabout Bay, a run of about , was deep, the long section from there, running to the west of Roosevelt Island, through Hell Gate and to Throg's Neck was at least deep, and then eastward from there the river was, at mean low tide, deep.
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East River [SEP] Introduction
The East River is a salt water tidal estuary in New York City. The waterway, which is actually not a river despite its name, connects Upper New York Bay on its south end to Long Island Sound on its north end. It separates the borough of Queens on Long Island from the Bronx on the North American mainland, and also divides Manhattan from Queens and Brooklyn, which is also on Long Island. Because of its connection to Long Island Sound, it was once also known as the Sound River. The tidal strait changes its direction of flow frequently, and is subject to strong fluctuations in its current, which are accentuated by its narrowness and variety of depths.