rehabilitation of dikes in Niamey after floods

Nigerian President Mohamed Bazoum will go to the rehabilitation work on the banks of the Niger River in Niamey in the approaching days. The heavy rains in August and September 2020 had precipitated historic floods and destroyed a few of the dikes alongside the river.

Because the wet season approaches, keen residents eagerly await the rehabilitation of the dikes. The work carried out by the Nationwide Workplace for Hydro-Agriculture Improvement began a number of days in the past. The dikes are reconstructed with compressed laterite. A answer that doesn’t fulfill Abdou Adamou, president of the Delegates for the Displaced Individuals Camp by the river at Niamey Railway.

“It is the plug they do,” he laments. There are elements the place the water has washed away the embankment. We needed to put tree trunks and on these tree trunks we nonetheless put clay [de la terre crue, NDLR]. So all that, we must always take away it and convey it up once more. Usually the answer is that we must always not less than pour concrete on the river facet and put clay and there actually will probably be no issues. ”

Fixed upkeep

For Dr. Bachirou Seyni Bodo, from the Institute for Improvement Analysis and specialist in pedology, ie soil science. Laterite dikes are a stable and cheap answer. Nevertheless, they require fixed upkeep: “Yearly,” explains this specialist, “earlier than the primary rains, we must always assess the capability of the ditches and give you the chance to work in the event that they are bolstered. A well-made laterite ditch is superb as a result of it is totally waterproof and fully inflexible. Nevertheless, put on and tear associated to erosion might be decreased by making important cementation on all sides of the embankment. However for that you may have to pay the worth, precisely. “

Right this moment 700 displaced households nonetheless ready, at racecourse camp, to give you the chance to return to his neighborhood by the river or to be relocated.

► Learn additionally: Floods in Niger, 65 useless and greater than 300,000 victims

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