Community mapping for flood modelling 2.0

Published: 5 July 2018

Dar es Salaam’s Ramani Huria 2.0 project is one of the most comprehensive community mapping projects currently ongoing. A large use case for the collected map data is improving knowledge on flood hazard, vulnerability and exposure, all three components of the risk framework. Mapping of the type, dimensions and state of the drainage network is an important component and has the potential to establish detailed flood inundation models that can be used to simulate floods at unprecedented scales.

Flooding near Jangwani bridge on 15 April 2018

Earlier, we reported on the state of the drainage mapping after Ramani Huria 1.0. Now, all drains are being remapped with a detailed drainage model and with attention to connectivity. The first 20 wards have been mapped and in this blog we report how well underway we are.

A specialized Ramani Huria drainage mapping team has been active in surveying drainage data, cleaning and quality checking with the result that there is now accurate drainage data for Mikocheni, Msasani, Kinondoni, Mwananyamala, Sinza, Kijitonyama, Hanansifu, Ndugumbi, Makumbusho, Mzimuni, Tandale, Manzese, Buguruni, Vingunguti, Magomeni, Kigogo, Mchikichini, Ilala, Mkurumula and Mburahati. Let’s show you the results with interactive maps, and refer back to how we did it.

Continue reading this blog on the original website:

Authors: Hessel Winsemius, Hawa Adinani, Amelia Hunt, Ivan Gayton, Iddy Chazua, Amedeus Kimaro, Paul Uithol