# Khlong Chong Nonsi

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Canal in Bangkok, Thailand

Khlong Chong Nonsi and the (replica) windmill, a symbol of [Silom](/source/Silom) road, at the Bang Rak–Naradhiwas intersection.

**Khlong Chong Nonsi** ([Thai](/source/Thai_language): คลองช่องนนทรี, pronounced [\[kʰlɔ̄ːŋ t͡ɕʰɔ̂ŋ nōn.sīː\]](https://en.wikipedia.org/wiki/Help:IPA/Thai)) is a *[khlong](/source/Khlong)* (canal) in one of the busiest and the most crowded business districts of Bangkok, as well as the nearby [Khlong Sathon](/source/Khlong_Sathon).

Khlong Chong Nonsi runs from [Surawong](/source/Surawong_Road) road all the way to the [Chao Phraya river](/source/Chao_Phraya_river), covering a distance of approximately 4.5 km (2.8 mi) through the districts of [Bang Rak](/source/Bang_Rak), [Sathon](/source/Sathon), and [Yan Nawa](/source/Yan_Nawa). The canal also gives its name to [Chong Nonsi](/source/Chong_Nonsi), one of the two subdistricts (*[khwaengs](/source/Khwaeng)*) in Yan Nawa district, where it empties into the Chao Phraya river. At present, the canal runs parallel to the entire length of [Naradhiwas Rajanagarindra](/source/Naradhiwas_Rajanagarindra_Road) road. Along its course, it intersects with several roads, including [Chan](/source/Chan_Road) road and [Rama III](/source/Rama_III_Road) road. The [BTS Skytrain](/source/BTS_Skytrain) [Silom Line](/source/Silom_Line) is located at its northern end, while the [BRT](/source/Bangkok_BRT) bus system operates along much of the canal. The width of the canal at its mouth is about 20 m (65.6 ft), while the section running along Naradhiwas Rajanagarindra road is approximately 6–8 m (19.7–26.2 ft) wide. 6 m (19.7 ft)–8 m (26.2 ft) wide.[1]

Its name "Chong Nonsi" is believed to be distorted from the word "Chong Nang Ni" (ช่องนางหนี) which means "a channel that lady escaped". It comes from a [folklore](/source/Thai_folklore) *"Legend of Lord U Thong"*, the story about an Ayutthaya mythical king named U Thong,[a] who escaped cholera to various places and gave rise to the names of different places later on.[2][3]

A 2018 survey found that Khlong Chong Nonsi, especially the intersection of [Silom](/source/Silom_Road) and Surawong roads, was the dirtiest in Bangkok.[4]

## Chong Nonsi Canal Park

Main article: [Chong Nonsi Canal Park](/source/Chong_Nonsi_Canal_Park)

On December 25, 2021, the [Chong Nonsi Canal Park](/source/Chong_Nonsi_Canal_Park) was opened by [Bangkok Metropolitan Administration](/source/Bangkok_Metropolitan_Administration) (BMA). It is the first phase of the Khlong Chong Nonsi restoration project with a distance of 200 m (656.2 ft) from the total project distance of 4.5 km (2.8 mi). The construction period is divided into four phases.

## Notes

1. **[^](#cite_ref-2)** Not [U Thong](/source/U_Thong) or Ramathibodi I, the founder of [Ayutthaya kingdom](/source/Ayutthaya_kingdom).

## References

1. **[^](#cite_ref-1)** BMA by PR Department (2020-11-20). ["🌟"คลองช่องนนทรี" คลองกลางกรุงที่ถูกลืม🌟"](https://www.facebook.com/prbangkok/posts/3048753071890960/) [🌟”Khlong Chong Nonsi” the forgotten downtown canal🌟]. *Facebook* (in Thai). Retrieved 2022-07-29.

1. **[^](#cite_ref-3)** Benjakul, Prapop (2021-07-16). ["#ตำนานท้าวอู่ทองในกรุงเทพมหานคร"](https://www.facebook.com/culturebma/posts/d41d8cd9/3949652438494849/) [#The legend of Lord U Thong in Bangkok]. *Facebook* (in Thai). Retrieved 2022-07-29.

1. **[^](#cite_ref-4)** ["ตำนานพระเจ้าอู่ทองฆ่ามังกร "ปราบโรคระบาด" สร้างอยุธยา?"](https://www.silpa-mag.com/history/article_15539) [Legend of King U Thong the dragon slayer “eliminate the epidemic” and establish Ayutthaya?]. *Art & Culture* (in Thai). 2021-12-30. Retrieved 2022-07-29.

1. **[^](#cite_ref-5)** ["คลองช่องนนทรีคลองเหม็นเน่าสุดในกรุง"](https://d.dailynews.co.th/bangkok/660818/) [Khlong Chong Nonsi, the most rotten canal in the city]. *Daily News* (in Thai). 2018-08-16. Retrieved 2022-07-29.

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[13°41′42″N 100°32′55″E / 13.694997364°N 100.548534759°E / 13.694997364; 100.548534759](https://geohack.toolforge.org/geohack.php?pagename=Khlong_Chong_Nonsi&params=13.694997364_N_100.548534759_E_type:isle)

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Adapted from the Wikipedia article [Khlong Chong Nonsi](https://en.wikipedia.org/wiki/Khlong_Chong_Nonsi) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Khlong_Chong_Nonsi?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.