The total cost of the projects would be €652m, whereof the development bank would contribute €350m in loans and grants while the Commission is set to provide €105m in grants.
The rest of the funding would come from other partners, such as the West African Economic and Monetary Union, the countries in the region and other donors.
AfDB senior vice-president Charles Boamah said the agreements “demonstrate the strong partnership between the bank and the European Commission”.
The funding would help projects around West Africa, including the construction of a bridge between Mauritania and Senegal, road development and transport facilitation on the Bamako-San Pedro corridor between Mali and Côte d’Ivoire, and the rehabilitation of the Lomo-Cotonou road.
The agreements were part of the framework known as the Pillar Assessed Grant or Delegation Agreement between the two bodies.
Boamah added: “We are on the right path and I am convinced that our cooperation will continue to grow.
Recent AfDB loans
AfDB agreed to a €180m loan to support Cameroon’s reforms to shore up public finances earlier this week.
It also provided Tunisia with €112m for road improvements and a €71.56m loan to strengthen its public services through digitalisation.