Improper disposal of waste has been an exigent problem in the developing world. This research work is a case study of Gambia. The plan of this project is to curb the environmental and social effects caused due to the Bakoteh Dumpsite in the Gambia region. To achieve this, we worked out a design plan for the closure of the Bakoteh Dumpsite and to determine the use for this large piece of land. Along with that, we found an alternative site to landfill the waste and gave the detailed design for the development of the new site. Objectives were the closure of Bakoteh Dumpsite, to prevent fire hazards, slope stability, and create a safe environment for the community, and the development of new site which would follow the three Cs (Control – Contain – Cover). Control unregulated dumping and organized waste collection, contained disposal at a localized location in the site and then move to the next once that is filled, and covering the landfilled waste to control odor, pests, and prevent illegal activities. Design of the technically engineered scientific landfill was carried out. The overall design ensures good public health, a better environment to live in, and savings of resources.