Also known as the Industrial Ring Road Bridge, Bhumibol is part of the 13 km long Industrial Ring Road connecting southern Bangkok with Samut Prakan Province. The bridge crosses the Chao Phraya River twice, with two striking cable-stayed spans of lengths of 702 m and 582 m supported by two diamond-shaped pylons 173 m and 164 m high. In 2009, it was named after King Bhumidol Adulyadej because according to tradition, all bridges that run on the Chao Phraya in Bangkhok are named after members of the Royal Family.