ConstructAfrica presents... Megaprojects Nigeria, a 15-part series on construction feats, challenges and social impact in Africa. With erosion wiping out the coastal beaches of Lagos and Lekki, a solution was proposed to build an 8.5km revetment to hold back the destructive power of the Atlantic Ocean. But the Lagos State Government wanted to do far more than that... by reclaiming land lost to 100 years of erosion, birthing Eko Atlantic City...