Stormwater drainage techniques for unpaved roads in Mali

Le drainage des eaux pluviales des routes non revetues au Mali

Mali is a huge landlocked country. Its vast land area, covering 1,241,000 km², severely complicates the task of providing road infrastructure. Moreover, Mali features a variety of relief, from tall mountains in the North to grassy savanna in the central part and Southern Mali even contains a Sudanese climate zone. Unpaved roads are highly sensitive to the deleterious effects of runoff water. Efficient management of the drainage system is essential to protect earthworks and pavement layers against aggression due to precipitation-induced runoff. The various techniques employed rely on a multidisciplinary approach, involving meteorology, cartography-topography, hydrology, hydrography, as well as statistics, to enhance environmental protection through optimal management of earthworks, which requires the creation of longitudinal ditches, crest ditches, diversion channels and other infrastructure.


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  • Accession Number: 01532403
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jul 28 2014 1:44PM