The Brang Biji River (Indonesian: Sungai Brang Biji; in Sumbawarese, "Brang" means "river") is a river in the island of Sumbawa, Indonesia, about 1,200 km east of the capital Jakarta.Brang Biji at Geonames.org (cc-by); Database dump downloaded 2015-11-27 It is also known as Brang Sumbawa.Brang Sumbawa at Geonames.org (cc-by); Database dump downloaded 2015-11-27
Hydrology The drainage basin of the Brang Biji covers an area of 225 km². The main river has a length of 33.20 km, with an upstream inclination of 17.14%, and the middle part inclination of 5.15%. It flows from south to north, passing Batu Lanteh at upriver and the city of Sumbawa Besar at downriver, into the Flores Sea. Fredy Benedictus Da Costa Rao, Saifoe El Unas, Pudyono. Studi Kelayakan Investasi Pembangunan Bendungan Krekeh Kabupaten Sumbawa Berdasarkan Aspek Ekonomi - Jurnal Mahasiswa Teknik Sipil Fakultas Teknik Universitas Brawijaya - Vol 1, No 3 (2015).
For years, the Brang Biji River suffers from rapid sedimentation, which reduces its water capacity, and decreasing width due to uncontrolled house building along the river banks. Benahi Infrastruktur, "Jinakkan" Banjir - SUARANTB.com - 20 Februari 2017. These factors contribute to annual flood, submerging houses along the banks in the districts of Bugis, Brang Bara, Pekat, Samapuin, Lempeh and Brang Biji, as happened in February 2017. 10 Bencana Alam Landa Indonesia dalam Sepekan - Republika - 12 Februari 2017.
The Brang Biji River is also heavily polluted by high concentrations of E-coli and mercury, reaching unsafe levels for people to use for drinking or washing. Enam Sungai di NTB Tercemar Limbah Berat - Aktual.com - Desember 14, 2015. The pollution is attributed to the unhygienic lifestyle of the community, such as throwing thrash and using the river as a restroom. Perilaku Hidup Bersih Masih Rendah, Sungai-sungai Besar di NTB Tercemar Tinja - Global FM - 16 Desember 2015.
Geography The river flows along the northwestern area of Sumbawa with predominantly tropical savanna climate (designated as As in the Köppen-Geiger climate classification). The annual average temperature in the area is 26 °C. The warmest month is October, when the average temperature is around 30 °C, and the coldest is February, at 24 °C. The average annual rainfall is 1539 mm. The wettest month is January, with an average of 321 mm rainfall, and the driest is August, with 3 mm rainfall.
See also List of drainage basins of Indonesia List of rivers of Indonesia List of rivers of Lesser Sunda Islands
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