<Tr> <Th> Toll </Th> <Td> 25 cents per person, 50 cents per horse - carriage, 50 cents per carriage passenger (1873) </Td> </Tr> <Tr> <Td_colspan="2"> Map of the Niagara River, showing the suspension bridges downstream from the Falls </Td> </Tr> <P> The Niagara Falls Suspension Bridge, which stood from 1855 to 1897 across the Niagara River, was the world's first working railway suspension bridge . It spanned 825 feet (251 m) and stood 2.5 miles (4.0 km) downstream of Niagara Falls, where it connected Niagara Falls, Ontario, to Niagara Falls, New York . Trains used the upper of its two decks, pedestrians and carriages the lower . The brainchild of Canadian politicians, the bridge was built by one American and one Canadian company . It was most commonly called the Suspension Bridge; other names included Niagara Railway Suspension Bridge, Niagara Suspension Bridge, and its official American name, the International Suspension Bridge . </P> <P> The bridge was part of Canadian politician William Hamilton Merritt's vision to promote trade within his country and with its neighbor the United States . Many, including bridge builders, argued that a suspension bridge could not allow the safe passage of trains . Nonetheless, the bridge companies hired Charles Ellet, Jr., who laid a line by a kite across the 800 - foot (240 m) chasm and built a temporary suspension bridge in 1848 . Ellet left the project after a financial dispute with the bridge companies, who hired John Augustus Roebling to complete the project . By 1854, his bridge was nearly complete, and the lower deck was opened for pedestrian and carriage travel . On March 18, 1855, a fully laden passenger train officially opened the completed bridge . </P>

What kind of bridge is the niagara falls bridge