The Karra River (Karra Khola or Karrakhola in Nepali) is a river in

Makawanpur district Makwanpur District( ne, मकवानपुर जिल्ला; , a part of Bagmati Province, earlier a part of Narayani Zone, is one of the seventy-seven districts of Nepal. The district, with Hetauda as its district headquarter, as well a ...

Bagmati Province Bagmati Province ( ne, बाग्मती प्रदेश, ''Bagmati Pradesh'') is one of the seven provinces of Nepal established by the constitution of Nepal. The province is Nepal's second-most populous province and fifth largest provinc ...

in Nepal. A

right tributary A tributary, or affluent, is a stream or river that flows into a larger stream or main stem (or parent) river or a lake. A tributary does not flow directly into a sea or ocean. Tributaries and the main stem river drain the surrounding drainage ...

of the

East Rapti River The East Rapti River flows from east to west through the Chitwan Valley in Nepal, forming the northern border of the Chitwan National Park. It joins the Narayani River inside the protected area.Bhuju, U. R., Shakya, P. R., Basnet, T. B., Shresth ...

, it originates in the north-eastern

Siwalik The Sivalik Hills, also known as the Shivalik Hills and Churia Hills, are a mountain range of the outer Himalayas that stretches over about from the Indus River eastwards close to the Brahmaputra River, spanning the northern parts of the Indi ...

hills. It has numerous tributary

rivulet A stream is a continuous body of surface water flowing within the bed and banks of a channel. Depending on its location or certain characteristics, a stream may be referred to by a variety of local or regional names. Long large streams ar ...

s. It flows from east to west direction. It is one of the main tributaries of the East Rapti. It flows through the middle of

Hetauda Hetauda ( ne, हेटौडा, ) is a sub-metropolitan city in the Makwanpur District of Bagmati Province in central Nepal. It is the administrative headquarters of the Makwanpur District and the capital of Bagmati Province as declared by m ...

sub-metropolitan city, before draining into East Rapti along with Kukhreni, another (minor) right tributary of East Rapti, in the outskirts of the city, forming a holy

Triveni Sangam In Hindu tradition, Triveni Sangam is the confluence (Sanskrit: ''sangama'') of three rivers that is also a sacred place, with a bath here said to flush away all of one's sins and free one from the cycle of rebirth. Triveni Sangam in Allaha ...

. The confluence is the site of

Kusmanda Sarowar Triveni Dham Kushmanda Sarowar Triveni Dham ( ne, कुष्माण्ड सराेवर त्रिवेणी धाम) is a sacred Hindu pilgrimage site dedicated to the Goddess Kushmanda Bhagwati. The name ''Kushmanda'' is formed by amalgam ...

, one of the major Triveni pilgrimages for Hindus in Nepal. The flow of Karra was found to be about 0.84 cubic meters per second in the dry seasons, and the minimum flow right before monsoon was measured to be between 0.65 and 0.75 cubic meters per second. It floods in the

monsoon A monsoon () is traditionally a seasonal reversing wind accompanied by corresponding changes in precipitation but is now used to describe seasonal changes in atmospheric circulation and precipitation associated with annual latitudinal oscil ...

, occasionally causing damage. On 24 July 2019, a severe flooding caused by heavy monsoon rains caused the river to gush into human settlement, submerging dozens of houses in Shantinagar and Gardoi localities of Hetauda. Several civilians needed rescuing and a truck was swept away. Because it passes right through the city, and Hetauda Industrial district has been built in its banks, it is significantly polluted near the confluence compared to other rivers in the region, although it is as clean as other rivers upstream from the industrial sites in Hetauda. This is despite a wastewater treatment plant being operated to filter the sewage and waste from the industrial district before it's dumped into the river. According to a government report, waste from less than half of all industries in the industrial district were processed by the plant, with other industries dumping their sewage directly into the river.

References

Rivers of Bagmati Province {{Nepal-river-stub