The African Development Bank (AfDB) has said Africa needs about $170 billion annually to meet its infrastructure requirement.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/africa-needs-170bn-annually-meet-infrastructure-requirement-%E2%80%93-afdb
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/premium-times-nigeria
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/habitat-and-urbanisation
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/infrastructure-development
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/africa