The Kanchanaphisek Bridge in Samut Prakan Province was opened to traffic on 15 November 2007. It is named after Highway 9, which is also called Thanon Kanchanaphisek and commemorates the Golden Jubilee of king Rama IX.

It consists of a two pylons, from which the suspension cables extend to the road surface, lifting the 500 meter long main span, the longest of its kind in the nation.