Raidāk River

The relief map shows the north opens into the Brahmaputra Raidak in Duar level

Pedestrian cantilever bridge over the Wang Chu to Thimphu

The Raidak called in Bhutan also Wang Chhu or Wong Chhu, flows as cross-border flow through Bhutan, the Indian state of West Bengal and Bangladesh.

Course

Bhutan

The Wang Chhu or Raidak in the Himalayas. Its upper course is also known as the Thimphu Chhu ( Dzongkha: "River of Thimphu " ) known. Its appearance in Bhutan is characterized by a high flow rate and a rocky river bed. Between Thimphu and the mouth of the right tributary Paro Chhu the Wang Chhu flows in a relatively wide valley, after the confluence he enters a rugged high mountain with spiral about a south-southeast direction.

Upon passing the monastery fortress Trashi Chhoe Dzong on the northern outskirts of Thimphu, the river bed is at an altitude of 2121 M above sea level, on exit from the high mountain range in the Duar plane at an altitude of 90 meters above the sea level.

West Bengal and Bangladesh

The Raidak in the river level occurs in West Bengal's Jalpaiguri district south of the Himalayas, in order then to flow through the district Koch Bihar. In Kurigram district of Rangpur division in Bangladesh it empties into the Brahmaputra. It is referred to herein as Dudhkumar.

Chukha power plant

Approximately 9 km air- line south of the confluence of the right tributary Ha Chhu Built in India 1974-1988 turnkey Chukha the power plant that generates since then with four generators a total capacity of 336 MW. The information carried by India financing consisted of 60 % of a grant and 40% from a low-interest loan, the southern neighbor receives the Bhutanese do not need electricity to alternative low prices.

Tala power plant

Plenty of 10 km in a straight line downstream of the Chukha power plant was built from 1997 to 2007, the Tala power plant, which produces a total of six 170 MW generators a total capacity of 1020 MW. It is the biggest joint project between India and Bhutan in the field of sustainable energy through hydropower.