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Updated Humanitarian Mapping For Climate Resilience Responding To Flo…
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…ods In Porto Alegre
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[email protected] authored and Siteleaf committed Nov 30, 2024
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- Rio Grande do Sul, Brazil Floods Response
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[Versión en español](https://www.hotosm.org/updates/recuperacion-de-la-infraestructura-social-en-porto-alegre-mapeo-para-la-resiliencia/) / [Versão em português](https://www.hotosm.org/updates/recuperacao-da-infraestrutura-social-em-porto-alegre-mapeamento-para-a-resiliencia/)

On April 27, 2024, following two weeks of intense rainfall in Rio Grande do Sul, the southernmost state of Brazil, the collapse of the 14 de Julio hydroelectric dam exacerbated the already critical situation in Porto Alegre. This disaster impacted over 160,000 people, with nearly 94,000 homes affected, about 420 public facilities partially or completely destroyed and more than 1,000 kilometers of public roads out of service. Porto Alegre's airport was and is still closed. The Guaíba River reached record levels, flooding the city’s historic center. However, this was not an isolated event: in September 2023 a cyclone claimed at least 30 lives in Rio Grande do Sul. Climate change and the El Niño phenomenon have exacerbated extreme weather conditions in the region.

Before the floods, the [Inter-American Development Bank](https://www.iadb.org/en) (IDB) and the Municipality of Porto Alegre had already been working together to improve the quality and resilience of social infrastructure, including schools, health centers, and social service facilities. In response to the new challenges posed by the disaster, the IDB partnered with Humanitarian OpenStreetMap (HOT), an organization with extensive experience in humanitarian action and community development through open mapping for disaster management. In this new context, the IDB and HOT set out to support the Municipality of Porto Alegre in collecting high-quality geographic data, paving the way for a swift recovery of essential social infrastructure.
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