Jacarepaguá´s draining project
The city’s preparation for the 2016 Olympic Games goes far beyond the improvement of transportation infrastructure, the construction of sporting facilities and the reurbanization of areas in the center of the city (including the Port Zone). In a Western neighborhood of the city, Jacarepaguá – located next to Barra da Tijuca, the region where a [...]
The city’s preparation for the 2016 Olympic Games goes far beyond the improvement of transportation infrastructure, the construction of sporting facilities and the reurbanization of areas in the center of the city (including the Port Zone). In a Western neighborhood of the city, Jacarepaguá – located next to Barra da Tijuca, the region where a majority of competitions are set to be held – more than 10 rivers are undergoing macrodraining to increase their capacity for rainwater. Of the 14 rivers set to receive improvements, four have already been completed: Córrego da Panela (“Panela” stream) and the Itanhangá, São Francisco and Papagaio rivers – the last of which was the target of intervention to transform an area that was previously nothing more than a ditch.
“These projects are part of the burden involved in hosting the Olympics because the Olympic Park is located in the same region, with a number of sporting facilities located around Jacarepaguá lake. All of these rivers run into the lake. These projects have improved water quality and tourism, increasing the sustainability of the lakes, with the help of treatment stations build around them,” explained Mauro Duarte, CEO of RioÁguas.
One example of this type of work is the Papagaio river, which runs through an area known as Anil, in Jacarepaguá. Construction crews were able to not only widen the banks and increase the depth of the river – which was previously clogged by debris and had become an open-air landfill -, but also to completely re-urbanize the area. Today, water flows under an extensive boardwalk that has become a plaza where residents can even find a gym for the elderly.
“Of course we won’t be able to do something like this to all of the rivers. However, in this specific stretch of the Papagaio river, we found this to be the best solution; one that even added value to the region,” said Mr. Duarte. “The idea of draining does not allow us to close a river over, because this makes maintenance difficult. There are, however, some cases when you are able to adapt the project to the location’s reality, according to requirements and the hydraulic project.”
In addition to Anil, these construction projects have also benefitted residents in the Freguesia and Itanhangá neighborhoods, which are intersected by the São Francisco, Itanhangá and Panela rivers, where macrodraining has already been completed. Over 4 kilometers have been revitalized through channeling, draining and landscaping improvements. For example, workers installed concrete sections that increase the flow of water – thereby increasing drainage speed –, in addition to larger galleries.
In all, a total of 350 thousand residents in the region will benefit from this program, which is backed by an investment of R$340 million. The 14 rivers to be subject to intervention were divided into three lots. These rivers can be found around the main region for the 2016 Olympic Games, where equipment for competitions will be installed.