High Quality Content by WIKIPEDIA articles! The Niagara Falls Suspension Bridge 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 from 1855 to 1897. Connecting Niagara Falls, Ontario to Niagara Falls, New York (the two cities assimilated the towns at the ends of the bridge by 1892), the bridge carried mixed traffic on its two decks across the Niagara River; trains crossed over the river by way of the bridge`s upper deck while pedestrians and carriages used the lower. As the bridge was the result of a collaboration of two companies from two countries, it was also known by its American name, the International Suspension Bridge. The bridge had other names including the Niagara Railway Suspension Bridge and Niagara Suspension Bridge, but the most common and definitive was simply the Suspension Bridge.