Humber Bridge single-span suspension bridge for 16 years from its opening in July 1981, until the opening of the Great Belt Bridge in June 1997, and was relegated to third place with the opening of the Akashi Kaikyō Bridge in April 1998. It is now the eighth longest single-span suspension bridge. The central span, at 1410 m (4640 ft), is the UK's longest. It remains the longest single-span suspension bridge in the world that one can cross on foot or by bicycle. The bridge is crossed twice during the annual Humber Bridge half marathon. In July 2013, work began on introducing a
Kalemouth Suspension Bridge its confluence with the Kale Water, near Eckford. There is another nearby bridge called the Kalemouth Bridge, which carries the A698 over the Kale Water. The bridge works on the principle of suspension, and uses chains with long iron links for the suspension cables. Iron rods are used for suspenders to connect the chain to the deck of the bridge, and additional suspenders have been added in the middle of the chain links. A red painted wooden truss supports the wooden deck, which is covered with a layer of asphalt. The four ashlar pylons at the ends of the bridge