The Kings of Ayuthhaya period ordered khlongs to be dug to reduce travelling time because there were many bends on the Chao Phraya causing difficulties for communication by water.

Around 1498, King Ramathibodi II ordered Khlong Samrong, on the eastern bank of the Chao Phraya towards the river mouth, to be dredged and maintained with also to be expanded to allow the passage of large boats.

[3][4] It could be said that the fact that dredging was ordered by the King means that Khlong Samrong was a natural waterway that had existed before the Ayutthaya period.

That is Khlong Samrong was dug as route for moving the army from the capital, Nakhon Thom, to the Chao Phraya River basin.

[3] [4] Rap Bua or Lotus Receiving Festival (ประเพณีรับบัว), a unique tradition that has occurred in this khlong only, which usually falls on the 14th day of the waxing moon of the 11th Thai lunar month of the locals lining the banks of Khlong Samrong and throwing lotus flowers onto a boat carrying the much revered Luang Pho To Buddha image (replica) from Wat Bang Phli Yai Nai temple.

The tradition originated from Bang Phli people picked lotus blossoms for the Mons from Phra Pradaeng to receive them for use in worshipping the Buddha at the end of Buddhist Lent, the day of the full moon in the 11th Thai lunar month (Wan Ok Phansa).