Featured Transport90% of gully erosion in Nigeria caused by road construction – NEWMAPBy Abisola THOMPSONSeptember 13, 2019September 13, 2019 by By Abisola THOMPSONSeptember 13, 2019September 13, 20190759 Over 90 per cent of gully erosions in Nigeria are caused by poor termination of drains during road construction activities, the Nigeria Erosion and Watershed