One of the most notable portions of the entire railway line is Bridge 277 which was built over a stretch of a river that was then known as part of the Mae Klong River .
Bridge 277 is the so - called Bridge on the River Kwai .
One of the most notable portions of the entire railway line is Bridge 277 , the so - called Bridge on the River Kwai , which was built over a stretch of a river that was then known as part of the Mae Klong River .