The Diama Dam, sometimes referred to as the Maka–Diama Dam, is a gravity dam on the Senegal River, spanning the border of Senegal and Mauritania. It is located next to the town of Diama, Senegal and about 22 km (14 mi) north of Saint-Louis, Senegal. The purpose of the dam is to prevent saltwater intrusion upstream, supply water for the irrigation of about 45,000 ha (110,000 acres) of crops and create a road crossing for the road between St. Louis and Nouakchott in Mauritania. Additionally, a ship lock built within the dam provides for navigation upstream. Plans for the dam were first drawn in 1970 when the riparian states within the Senegal River Basin Development Authority agreed to develop the Senegal River. The Diama Dam was to be constructed in conjunction with the Manantali Dam which was to be located further upstream in Mali. Construction on the Diama Dam began on 15 September 1981 and was completed on 12 August 1986. The Manantali Dam was completed in 1988. The Diama project was funded by a US$149.5 million loan from the African Development Bank.^{[citation needed]}[1] The main section of the dam with ship lock and spillway is 170 m (560 ft) long while a 440 m (1,440 ft) long embankment dam section extends north to the edge of the river. A dike further extends the dam to the north. The dam is 18 m (59 ft) tall and its spillway has a maximum discharge of 6,500 m³/s (230,000 cu ft/s).[2]

This article may be expanded with text translated from the corresponding article in French. (May 2020) Click [show] for important translation instructions. View a machine-translated version of the French article. Machine translation like DeepL or Google Translate is a useful starting point for translations, but translators must revise errors as necessary and confirm that the translation is accurate, rather than simply copy-pasting machine-translated text into the English Wikipedia. Consider adding a topic to this template: there are already 5,038 articles in the main category, and specifying|topic= will aid in categorization. Do not translate text that appears unreliable or low-quality. If possible, verify the text with references provided in the foreign-language article. You must provide copyright attribution in the edit summary accompanying your translation by providing an interlanguage link to the source of your translation. A model attribution edit summary is Content in this edit is translated from the existing French Wikipedia article at [[:fr:Barrage de Diama]]; see its history for attribution. You should also add the template {{Translated|fr|Barrage de Diama}} to the talk page. For more guidance, see Wikipedia:Translation.

Diama Dam
Ship lock on the dam
Location of Diama Dam in Senegal
Country	Senegal/Mauritania
Location	Diama-Maka
Coordinates	16°13′0.20″N 16°24′53.63″W
Purpose	Navigation, water quality, irrigation
Status	Operational
Construction began	1981
Opening date	1986; 36 years ago (1986)
Construction cost	US$149.5 million
Dam and spillways
Type of dam	Gravity
Impounds	Senegal River
Height	18 m (59 ft)
Length	610 m (2,000 ft)
Spillway capacity	6,500 m3/s (230,000 cu ft/s)
Reservoir
Total capacity	250,000,000 m3 (200,000 acre⋅ft)
Surface area	235 km2 (91 sq mi)

The small town of Diama is known as a border crossing to and from Mauritania, as the dam is the only land bridge between the two countries.[3]

See also

• Schistosomiasis
• Félou Hydroelectric Plant – upstream
• Gouina Hydroelectric Plant – upstream
• Manantali Dam – upstream

References

Wikimedia Commons has media related to Barrage de Diama.

На других языках

[de] Diama-Damm

[ru] Диама (плотина)