Klong Phasi Charoen

Klong Phasi Charoen
Name	Klong Phasi Charoen
Native name	คลองภาษีเจริญ
Country	Thailand
Province	Bangkok
Length km	28
Start	Thonburi
End	Chao Phraya River
Completed	1872

Klong Phasi Charoen is a historic canal in western Bangkok linking Thonburi districts to the Chao Phraya River and the inland network of waterways in Thailand. Constructed in the 19th century during the reign of King Chulalongkorn and influenced by policies of King Mongkut, the canal has served roles in transportation, irrigation, commerce, and urban development across Bangkok Noi, Bangkok Yai, and Phasi Charoen District. It remains integral to water management policies shaped by authorities such as the Royal Irrigation Department, the Bangkok Metropolitan Administration, and the Ministry of Interior.

History

The canal’s construction in 1872 was commissioned amid reforms associated with King Chulalongkorn and earlier infrastructure initiatives under King Mongkut, intersecting with broader modernization efforts involving figures like Prince Damrong Rajanubhab and advisors connected to the Siamese modernization era. Its route and function were influenced by earlier waterways such as the Khlong Saen Saep and projects linked to the Rattanakosin Kingdom urban expansion. Throughout the Bowring Treaty period and the rise of trade with British Empire, French Empire, and Netherlands interests in Southeast Asia, the canal supported transport for merchants linked to houses similar to Borneo Company Limited and trading networks involving Chinese diaspora in Thailand communities. During the 20th century, administrations including the Field Marshal Plaek Phibunsongkhram government and later Srinagarindra era planning reshaped banks and bridges; post-war reconstruction involved agencies analogous to the Office of the National Economic and Social Development Council.

Geography and Course

Klong Phasi Charoen flows through western Bangkok neighborhoods, connecting with tributaries and canals like Khlong Bangkok Yai, Khlong Bangkok Noi, and linking hydrologically toward the Tha Chin River basin and the Pasak River catchment via manmade and natural channels. Its banks border districts including Phasi Charoen District, Bang Khae District, and Taling Chan District. Nearby landmarks include Wat Kalayanamit, Wat Paknam Bhasicharoen, Wat Nang Chi, and markets such as Talat Phlu and Khlong Lat Mayom Floating Market. The canal’s alignment intersects arterial roads like Charoen Krung Road, Phetkasem Road, and transport nodes near Bang Khae Market and the Bang Wa area, integrating with the BTS Skytrain and MRT Blue Line corridors.

Hydrology and Water Management

Hydrological regime of the canal is managed within frameworks used by the Royal Irrigation Department, Department of Water Resources, and Bangkok Metropolitan Administration flood control programs. Water levels respond to seasonal monsoon patterns influenced by the Mekong River basin climate, interactions with the Chao Phraya River tide, and urban runoff from catchments like Bang Kapi and Phra Nakhon districts. Flood mitigation schemes include gates and pumping stations conceptually similar to structures on the Tha Chin River and canalized systems employed in Rotterdam-style engineering consultations referenced by Thai planners. Management plans coordinate with agencies such as the Royal Irrigation Department and the Hydro-Informatics Institute to balance irrigation, navigation, and sewage conveyance.

Infrastructure and Transportation

Bridges spanning the canal include historic and modern crossings near Wat Paknam, pedestrian links to Talad Phlu, and road bridges connected to Phetkasem Road and local arterial streets. Services for water taxis, longtail boats, and cultural tourist boats operate alongside municipal waterbus concepts championed by Bangkok Metropolitan Administration planners and influenced by mass transit integration like the BTS Skytrain and Bangkok Metro (MRT). Canal-side infrastructure hosts floating markets, community piers, and facilities reminiscent of riverfront redevelopment projects in cities such as Singapore and Venice. Utilities along the banks involve drainage networks maintained by the Metropolitan Waterworks Authority and electrical and telecommunication lines regulated by the National Broadcasting and Telecommunications Commission.

Ecology and Biodiversity

The riparian habitats of the canal support flora including species analogous to Nipa palm, Bamboo, and aquatic plants found in Bangkok waterways, while fauna historically includes fish taxa similar to Giant snakehead and crustaceans similar to native prawns. Urban biodiversity is shaped by pressures from pollution, invasive species comparable to those recorded in Chao Phraya River surveys, and habitat modification associated with densification seen across Thailand urban centers. Conservation assessments reference methodologies used by institutions like the Kasetsart University Faculty of Fisheries and studies by the Chulalongkorn University Faculty of Science to monitor water quality, benthic communities, and avifauna along canals.

Cultural and Economic Significance

The canal has been central to local economies centered on floating markets, boat-based commerce, and temple patronage at sites including Wat Paknam Bhasicharoen, Wat Nang Chi, and Wat Arun by association with riverine pilgrimage routes. Communities along the banks maintain crafts, fruit orchards and markets similar to those at Bang Nam Pheung, while tourism draws visitors to cultural performances and festivals coordinated with institutions like the Tourism Authority of Thailand. Social life around the canal reflects histories of the Thai-Chinese community, agricultural supply chains tied to Ratchaburi and Samut Sakhon, and urban livelihoods documented in studies by the Thailand Development Research Institute.

Conservation and Restoration Efforts

Restoration initiatives involve municipal programs under the Bangkok Metropolitan Administration, technical support from the Royal Irrigation Department and academic partnerships with Chulalongkorn University and Kasetsart University. Projects address sedimentation, bank stabilization, water quality, and heritage preservation resembling efforts on Khlong Saen Saep and other historic canals. Community-led stewardship initiatives draw on models promoted by NGOs and foundations similar to the Sathirakoses Nagapradipa Foundation and international cooperation frameworks such as exchanges with UNESCO-linked urban heritage programs. Ongoing challenges include coordinating multisectoral governance among agencies like the Ministry of Natural Resources and Environment and integrating climate adaptation plans featured in national policies.

Category:Canals in Bangkok Category:Waterways of Thailand