The analysis of the Socio-Economic system sets the engineering problems in a broader perspective. It answers why a technical problem should be solved and in what kind of socio- economic environment. An insight in recent history shows that Angoche once was an important port and town for the Nampula province. Agro-Industry was the main economic driver, producing cashew, sisal hemp, cotton, sugar and prawns. Civil strife, tragic World Bank policy and the development of the natural deep port of Nacala brought down the town and District of Angoche. A deteriorated road and port put it on an 'infrastructural island', which holds back all economic activity, essential to solve everyday problems as immense unemployment, public health and education. AgroIndustry (namely cashew, cassava and fresh fish/prawns) , tourism and exploitation of heavy sands (containing titanium) are defined as possible new economic drivers. All three can profit from an operational industrial port that opens a gateway to the international port if Nacala. The District Administration is chosen as the problem owner since it is responsible for the infrastructure in the District and its jurisdiction overlaps more or less the future possible hinterland of the port. Due to the Administration's budget, private investment is necessary to improve feasibility. An actor and network analysis reveals that higher-level government is focussed on further development of Nacala (infrastructure) and Ilha de Mos:ambique (tourism). Getting them involved to formulate a consistent policy for Angoche in all relevant fields might be the biggest challenge. Three scenarios, using the three opportunities for the region, show that serious port development is only desirable when a large private investor can function as a driver for the whole region. In the two other scenarios focussing on the development of the road to Nampula seems more useful. The North of Mozambique, and Angoche in particular, have an interesting natural environment. The tropical climate and the influence of the Indian ocean provide for an ecological system with a great biodiversity. Many people in Angoche work in the fishing industry and profit from the protection of the ecological system and a working port with a good connection to the open sea. In this reseach we have tried to solve the problem concerning navigability of the entrance of the channel, which leads to Porto de Angoche. In the parapgraphs one to four, discriptions of North East Africa, the coastal region of Angoche, the estuary and its morphological system in particular give a clear image of the field of research. We are dealing with an estuary with a tide dominated (low) outer delta and a short tidal basin, vegitated by many mangrove forests. After analyzing the flow area we come to possible interventions which could provide a better entry to the port. On the basis the Multi Criteria Analyses, costs and the policy of the District of Angoche, these interventions are narrowed down to three best, most suitable solutions, which are: guiding of the ebbstream in combination of decrease of sediment in suspension (route II), submerged water wall (route I) and dredging. Because there are still a lot of uncertainties concerning the effects of the interventions, it is recommended to do more research when actual aplication is considered.