Louhajang River in Tangail District
|- location||Gabsa Ain, Tangail|
Louhajang River (Bengali: লৌহজং নদী [lowɦɔdʒɔŋ nɔd̪i]) is located in central Bangladesh. It branches out from the Jamuna near Gabsain at Bhuapur, Tangail District. Thereafter it splits into two parts before the parts meet up again. It flows past Tangail city, Karotia and Jamurki before joining the Bangshi Louhajang is linked with the Dhaleshwari
The average depth is 1 metre (3 ft) and maximum depth is 3 metres (9 ft).
Until around the 1980s, launches and big boats carrying merchandise anchored at Tangail. A road at College Para in the town was named "Amghat" as mangoes from Rajshahi were unloaded there. Besides, the river linked shoals in the western part with rest of the district. The river started dying after the Water Development Board constructed a sluice gate near the confluence of Louhajang and Dhaleshwari rivers in 1992 under its Flood Action Plan-20. Boats stopped plying the route since then as the river lost navigability. In the subsequent years, encroachment of its banks and shore areas increased.
- "খাল বিল নদী". টাঙ্গাইল জেলা. Retrieved 11 December 2014.
- Mazumdar, Kedarnath, Moymonshingher Itihash O Moymonsingher Biboron, 2005, (in Bengali), p. 152, Anandadhara, 34/8 Banglabazar, Dhaka.
- Map of Rivers of Bangladesh produced by Graphosman, 55/1 Purana Paltan, Dhaka 1000.
- "No step yet to free Louhajang, Bairan rivers from grabbers". The Daily Star. 23 April 2007. Retrieved 2007-12-01.
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- Islam, Nazrul (2012). "Tangail Sadar Upazila". In Islam, Sirajul; Jamal, Ahmed A. Banglapedia: National Encyclopedia of Bangladesh (Second ed.). Asiatic Society of Bangladesh. Includes a map of the river.