Flood Management Feasibility Study for Msimbazi Middle Catchment Area
Flood Management Feasibility Study for Msimbazi Middle Catchment Area
Location: Dar es Salaam, TanzaniaProject type: Feasibility study and Environmental and Social Impact Assessment
Year: 2020-2021
Client: GIZ (Deutsche Gesellschaft für Internationale Zusammenarbeit)
Consortium partners: CDR international, VE-R, WEMA, Deltares
The Msimbazi River Basin (170 km2) is located in the city of Dar es Salaam, Tanzania, and for the last decade this is the city’s worst hit area by serious degrees of flooding nearly every rainy season. The floods are impacting the basin’s inhabitants and environment on different levels, like loss of lives, destroyed homes and assets, traffic interruption, siltation of areas and negative health effects of contaminated flood waters and stagnant ponding after the events. Flooding has become one of the main environmental issues in the basin and it is expected that the situation will get worse if no action will be taken. This assignment for the middle basin area follows the Msimbazi Opportunity Plan strategy and builds on the agreed principles.
After the identification and testing of efficiency of a set of prioritized measures, a flood risk management strategy was developed that was complemented with an urban strategy. These strategies were based on short-term component focussing on removing hydraulic bottlenecks and resettlement of the worst affected assets and people and a long-term component proposes a transformation of urban land use by making room for the river, urban regeneration to accommodate resettlements, and reforestation and re-greening of the catchment.
