Verrazzano-Narrows Bridge anchorage on the Staten Island side contains a facility for heating cinders that are used to de-ice the bridge deck during winter. At the time of opening, the Verrazzano-Narrows Bridge was the longest suspension bridge in the world; its 4,260-foot center span, between the two suspension towers, was longer than the Golden Gate Bridge's center span. Despite being only slightly longer than the Golden Gate Bridge, the Verrazzano-Narrows Bridge could carry a 75% greater load than the former could. In 1981, the Verrazzano Bridge was surpassed by the Humber Bridge in England, which has a center span of , as
Black Suspension Bridge file, 42 Havasupai tribesmen carried the one-ton, 550-foot suspension cables. Black Suspension Bridge The Black Suspension Bridge also known as the Kaibab Suspension Bridge spans the Colorado River in the inner canyon of Grand Canyon National Park. It is part of the South Kaibab Trail and is the river crossing used by mules going to Phantom Ranch. The Black Bridge and Silver Bridge, located about 700 meters downstream, are the only spans in hundreds of river miles. The Black Bridge was built in 1928. As motorized vehicles could not access the construction site, humans and mules transported the 122 tons