The bamboo bridge between Kampong Cham town and Koh Pen in the Mekong River is built annually in the dry season and washed away when the river level rises in the wet season.
Before 2017 the bamboo bridge was built larger and strong enough to accommodate cars, and was the only road link between the island and the mainland. In the dry season the water level drops meaning that ferry travel wasn’t practical so building the annual bridge was the best option. In 2017 a new permanent road bridge opened south of the bamboo bridge and since then a smaller pedestrian only bridge has been constructed – more for nostalgic reasons than practical need. The smaller bridge retains much of the same charm and construction methods and is still an iconic landmark of Kampong Cham. The bridge draws many visitors to cross over to relax at the beach area on Koh Pen.
You cannot visit year round since the bridge is built and washed away each year. The bridge starts construction after the rains when the water levels drop in November-December. You can expect the bamboo bridge to be completed and open by January each year but the construction schedule obviously varies depending on the weather.