Abdulkadir Mohamed Hussein and Nagib Omar / Elixir Social Studies 104 (2017) 46017-46027 46017 Introduction The 2012 Human Development Report estimates per capita GDP at $284 - against a sub-Saharan Africa average of $1,300 per capita. Poverty incidence is 73% (61% in urban centers and 80% in rural areas).For several decades, development agencies have placed great emphasis on building economic and political infrastructures and, more recently, security as tools for poverty reduction and sustainable development. But they have neglected social infrastructures like education and health as a means to improve economic growth and sustainable development. It is because of this neglect of Social infrastructure development that the study aimed at providing evidence on the role of social infrastructure in sustainable of Somalia. The study was guided by the following objectives, to determine the role of education infrastructure in sustainable development of Mogadishu, Somalia, to examine the role of health care infrastructure in sustainable development of Mogadishu, Somalia, to find out the role of transport infrastructure in sustainable development of Mogadishu, Somalia. The researcher used a survey design method for the study. Survey design is a design in which data is collected using questionnaires. The study findings indicate that a large number of respondents agreed to the statement that the presence of health care facilities in the community improve on individual development. This was represented by the mean response value of 3.76. The study findings indicated that majority of the respondents agreed to the statement that transport infrastructure stimulates investment. This was represented by a mean response value of 3.89. Results from the study indicated that majority of the respondents agreed to the statement that transport links between places increases trade. This is evidenced by a mean response value of 3.86. Based on the findings from this research project, it is valid to recommend that education and healthcare are the two important variables, which policymakers should embrace when seeking to revitalize the social infrastructure in Somalia. Social infrastructure has enormous externalities. Education and health are social goods in which social marginal productivity (SMP) exceeds private marginal productivity (PMP). Therefore, private investment capital in such social infrastructure is likely to fall far short of what is needed. In that case, it is imperative for the state to provide the finance and other complementary resources for the take- off of such social infrastructural projects. The state does not necessarily have to operate or manage a social infrastructure, but it is necessary for the state to provide guidelines for and monitor its operation (Denison, 2013) Education is widely accepted as a leading instrument for promoting economic growth. For Africa, where growth is essential if the continent is to climb out of poverty, education is particularly important (N.Ssewanyana, 2007) . The main asset of the poor is human capital. ARTICLE INFO Article history: Received: 20 February 2017; Received in revised form: 21 March 2017; Accepted: 29 March 2017; Keywords Human Development, Sustainable Development, Social Infrastructure. Role of social Infrastructure in Sustainable Development of Mogadishu, Somalia Abdulkadir Mohamed Hussein and Nagib Omar Jomo Kenyatta University of Agriculture and Technology. ABSTRACT Social infrastructure has enormous externalities. Education and health are social goods in which social marginal productivity (SMP) exceeds private marginal productivity (PMP). A country‟s economic development is closely related to the levels of achievement in education, health and transport. In as much as economic infrastructure has an important role in economic development, the improvement of social infrastructure is vital for economic progress. Health conditions play a vital role in a country‟s capacity for economic development. Education is a vital means of poverty reduction in poor countries as education gives people necessary skills that would increase their capacity to produce more effectively and efficiently. Education can directly reduce poverty through enhancement of productivity and economic growth, which indirectly helps to alleviate poverty through its positive spill-over effects (externalities) on the society more broadly. Education promotes the eligibility for paid employment in the formal sector and for their advancement once the people are employed. Somalia is a country with complex political, security, and development environment, and much of its recent past has been marked by poverty, famine, and recurring violence. The country has existed in a state of armed conflict of one form or another since 1988 and without a functional central government since 1991 with poor, damaged non functional social infrastructures. After two decades of civil war and conflict Somalia has had slow progress on political stability, Somalia‟s economy has been shaped and sustained by conflict with massive destruction of social infrastructure. © 2017 Elixir All rights reserved. Elixir Social Studies 104 (2017) 46017-46027 Social Studies Available online at www.elixirpublishers.com (Elixir International Journal)