Trans-West African Coastal Highway

The Trans–West African Coastal Highway is a transnational highway project to link 12 West African coastal nations, from Mauritania in the north-west of the region to Nigeria in the east, with feeder roads already existing to two landlocked countries, Mali and Burkina Faso.

The eastern end of the highway terminates at Lagos, Nigeria. Some organizations such as the Economic Community of West African States (ECOWAS) consider its western end to be Nouakchott, Mauritania, and others such as the United Nations Economic Commission for Africa consider it to be Dakar, Senegal, giving rise to these alternative names for the road:

The length of the route is 4,560 kilometres (2,833 mi) of which 83% or 3,777 km (2,347 mi) has been paved according to African Union (AU) documents, or 4,010 km (2,492 mi) with 3,260 km (2,026 mi) paved, according to African Development Bank (ADB) reports (which do not include the Nouakchott-Dakar section of about 570 km (354 mi)). There are about 9 unpaved sections, but some paved sections require reconstruction. All are two-lane highways with the exception of short four-lane highways in the eastern third of the route. The ADB reports published in 2003 say that 32% of the highway is in poor condition, 9% is good and 59% is fair. Reconstruction of the segment in Lagos, Nigeria began in 2010, and when it is complete that section will be ten lanes wide.

The highway is a project of ECOWAS and the New Partnership for Africa’s Development (NEPAD) of the AU, with funding from the African Development Bank. The route is Trans Africa Highway No. 7 (TAH7) in the International Road Federation's list of nine highways which it regards as priorities for a Trans-Africa Highway network.

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