Đồng Nai river

The Đồng Nai River (sông Đồng Nai listen) is a river in Vietnam that originates in the Central Highlands region of the southern portion of the country. It is approximately 586 km in length,[1] making it the longest river to be entirely located in Vietnam. It gives its name to Đồng Nai Province.

Dong Nai River
Phước Long River
EtymologyNông-nại (Shallow salt-marsh)
Native nameSông Đồng Nai
Physical characteristics
MouthSouth China Sea
 • location
Cần Giờ Mangrove Forest
 • elevation
0 m
Length568 km
Basin size38.600 km
Width 
 • maximum2.6 km
Basin features
Tributaries 
 • leftBé River, Saigon River, Vàm Cỏ
WaterbodiesTri An Lake
BridgesSaigon Bridge
Inland portsSaigon Port

The original Vietnamese name translated from Khmer language was 'Nông-nại', meaning shallow salt-marsh.

Geography

The Dong Nai River flows through the provinces of Lam Dong, Dak Nong, Binh Phuoc, Dong Nai, Binh Duong and Ho Chi Minh City with a length of over 437 km and a basin of 38,600 km², if calculated from the source of the Đa Dâng River, it is 586 km long. From the confluence with the Đa Nhim River below the Pongour waterfall, it measures 487 km. The Dong Nai River flows into the East Sea in Cần Giờ District.

The main stream of Dong Nai river in the upstream is also known as the Đa Đang river. The river originates from Lam Vien plateau , meandering along the northeast-southwest direction from the mountains to the plateau in Ta Lai (Tan Phu district, Dong Nai province). The river forms the natural boundary between Đăk R'Lấp District (Dak Nong) and Bảo Lâm District, Lâm Đồng Province, Cát Tiên District, between Cát Tiên and Bù Đăng District, Tan Phu District, Dong Nai and between Tan Phu and Đạ Tẻh District.

After meeting the Bé River, the Dong Nai River forms a natural boundary between Dong Nai on the east and Bình Dương Province on the west bank. >

The river flows through Bien Hoa City, then flows along the boundary between Dong Nai and Ho Chi Minh City, between Ba Ria - Vung Tau and Ho Chi Minh City.

Hydropower

Major hydropower dams in the Dong Nai river basin:

  • On the main Dong Nai river: Trị An Dam, Dong Nai 2, Dong Nai 3, Dong Nai 4, Dong Nai 5, Dong Nai 6 (in development) and Dong Nai 6A (in development).[2] The Dong Nai 6 and 6A projects are controversial as they are likely to have a significant impact on the biodiversity of Cat Tien National Park.[3]
  • Bé River: Thac Mo dam, Cần Đơn dam
  • Saigon River: Dau Tieng Lake
  • Da Nhim River: Da Nhim dam
  • Dai Ninh dam

La Nga River: Hàm Thuận – Đa Mi hydroelectric power stations

References
  1. Saigon: A History Nghia M. Vo - 2011 - Page 1 "The Đồng Nai River and the much larger Mekong River had been for centuries thriving waterways that allowed easy communication and commerce with Cambodia and Laos, and the seaports of Thailand, Malaysia, Indonesia and China."
  2. http://www.dalat.gov.vn/web/T%C6%B0li%E1%BB%87u/tabid/99/MaterialItemID/984/MaterialCategoryID/0/CurrentPage/1/Default.aspx
  3. http://thethaovanhoa.vn/132N20110808070247010T0/thuy-dien-de-doa-song-dong-nai.htm

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