Khlong Chedi Bucha
[file:Phra Prathom Chedi, Mueang Nakhon Pathom District, Nakhon Pathom 73000, Thailand - panoramio (6).jpg|thumb|250px|Khlong Chedi Bucha in 2015]
Khlong Chedi Bucha is a khlong in central Thailand, sharing a similar origin with Khlong Maha Sawat. Both were dug during the reign of King Mongkut to shorten travel time for the monarch and pilgrims traveling from Bangkok to pay homage to Phra Pathom Chedi, the country's largest and oldest pagoda and one of its most revered.
After the restoration of Phra Pathom Chedi was completed in 1853 by Somdet Chao Phraya Borom Maha Prayurawongse, King Mongkut ordered the excavation of a canal linking the Nakhon Chai Si River in Nakhon Chai Si District directly to Phra Pathom Chedi in Mueang Nakhon Pathom District, covering a distance of about. However, the project stalled after Prayurawongse's death and was later completed by his son, Chao Phraya Thiphakorawong, who employed Chinese laborers. The king personally financed the work, which was finished in 1862, and the canal was royally named "Khlong Chedi Bucha," meaning "Canal to Worship the Pagoda."
In the past, Khlong Chedi Bucha was the principal route between Bangkok and Nakhon Pathom, before the arrival of the railway. At its entrance stood a bustling market and community known as "Talat Tonson", once a vibrant trading hub where goods from various regions were exchanged. Among the most renowned products was indigo-dyed black fabric, highly popular among farmers of the time. The creation of the canal helped make Nakhon Pathom more prosperous.
King Mongkut also built Pathomnakhon Palace beside the pagoda, with steps leading down to the canal for his visits. Today, only the ruins remain on an open ground next to the chedi. In addition, other markets such as "Talat Lang" and "Talat Bon" emerged near the pagoda, with Talat Bon being the first reached when traveling along the canal. These markets are now under the care of the Crown Property Bureau.
Before 1918, the bridge linking Nakhon Pathom railway station to Phra Pathom Chedi was likely made of wood. It was later rebuilt in reinforced concrete as "Charoen Sattha Bridge" designed by Prince Narisara Nuwattiwong during the reign of King Vajiravudh.
At present, Khlong Chedi Bucha is no longer a main transportation route, and Talat Tonson has also faded into a quiet, almost forgotten state.