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This is a list of bridges over the Niagara River in order from Lake Erie downstream to Lake Ontario.
Bridges marked
★ cross branches of the river within the United States. All others cross the full river and connect the U.S. and Canada. The endpoints of each bridge are shown in order from right to left facing downstream.

Crossing	Carries	Location	Coordinates
Peace Bridge	Queen Elizabeth Way	Buffalo, NY – Fort Erie, ON
International Railway Bridge	Canadian National Railway freight trains
★ South Grand Island Bridge	I-190	Tonawanda – Grand Island, NY
★ North Grand Island Bridge	I-190	Niagara Falls – Grand Island, NY
★ American Rapids Bridge	Road	Mainland – Goat Island (Niagara Falls, NY)
★ Three Sisters Island footbridge	Footpath	Goat Island – Three Sisters Island (Niagara Falls, NY)
★ (name?)	Road for Niagara Scenic Trolley (not open to cars)	Mainland – Goat Island (Niagara Falls, NY)
★ Luna Island footbridge	Footpath	Luna Island – Goat Island (Niagara Falls, NY)
Rainbow Bridge	Road (not open to commercial trucks)	Niagara Falls, NY – Niagara Falls, ON
Whirlpool Rapids Bridge	Road and Canadian National Railways (''Maple Leaf'' Amtrak/VIA passenger train)
Michigan Central Railway Bridge	Disused (was Canadian Pacific Railway)
Lewiston-Queenston Bridge	Highway 405 I-190	Lewiston, NY – Queenston, ON

Two bridges over the east branch of the river — the South Grand Island Bridge and North Grand Island Bridge, forming part of I-190 (the Niagara Thruway) on the American side — provide a through road link across Grand Island, New York between Niagara Falls, New York and Buffalo, New York.