Humber Bridge July 1981. With a centre span of and a total length of , the Humber Bridge was the longest single-span suspension bridge in the world for 17 years, until Japan's Akashi Kaikyō Bridge opened on 5 April 1998. The road-distance between Hull and Grimsby was reduced by nearly as a consequence of the bridge. The bridge's surface takes the form of a dual carriageway with a lower-level foot and cyclepath on both sides. There is a permanent speed limit on the full length of the bridge. Each tower consists of a pair of hollow vertical concrete columns, each tall and
Union Bridge (Tweed) Union Bridge (Tweed) The Union Bridge, also known as the Union Suspension Bridge or Union Chain Bridge, is a suspension bridge that spans the River Tweed between Horncliffe, Northumberland, England and Fishwick, Berwickshire, Scotland. In so doing it also spans the border between England and Scotland. When it opened in 1820 it was the longest wrought iron suspension bridge in the world with a span of , and the first vehicular bridge of its type in the United Kingdom. Although work started on the Menai Suspension Bridge first, the Union Bridge was completed earlier. Today it is the oldest suspension