The Bhumibol Bridge (Thai: สะพานภูมิพล), also known as the Industrial Ring Road Bridge (Thai: สะพานวงแหวนอุตสาหกรรม) 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. Where the two spans meet, another road rises to join them at a free-flowing interchange suspended 50 metres above the ground.
According to tradition, all the bridges over the Chao Phraya in Bangkok are named after a member of the Royal Family. In October 2009, it was announced that both bridges would be named after King Bhumibol Adulyadej, with the northern bridge officially named "Bhumibol 1 Bridge" and the southern bridge "Bhumibol 2 Bridge". The unofficial name "Mega Bridge" was also widely used.
Contractor: TNNS Jointventure, Taisei, Nishimatsu, NKK, Sino Thai (STECON)
Formwork Service: PERI-HORY Asia and PERI Formwork
Basic structure of Bhumibol Bridge consists of two main parts that are: - Bhumibol Bridge 1 is the one across the northern part of Chao Praya River connecting Yannawa district, Bangkok and Songkranong district, Samut prakarn. It is a cable-stayed bridge with 7 lanes together with 2 high pillars. The structure is reinforced concrete 50m tall from the water level to let the cargo ship be able to travel by. - Bhumibol Bridge 2 is the one across the southern part of Chao Praya River connecting Songkranong district and Bangyhaprak district. The structure is almost the same as Bhumibol Bridge 1, with 7 lanes and 2 high pillars and built using reinforced concrete 50m tall from the water level to let the cargo ship be able to travel from Chao Praya River to Klongtoey pier.