In 2011 a project of the revitalization of the "Kaljavi potok" was announced. The stream is already channeled and has a concrete bed, but it also receives waters from many local cesspits. It was envisioned as the green oasis between the trolleybus terminus in Banjica and the "Tehnogas" factory in Kanarevo Brdo, just from downtown Belgrade. The section of the stream was projected as the history and nature reserve as it was to include the remnants of the paleolithic site, pedestrian and bicycle paths, trim trail, a series of small bridges over the stream, three natural springs, limestone above-the-ground formations and the habitat of 20 species of rare birds, not usually find in the urbanized areas. The entire revitalized area was projected at and should comprise the surrounding forest, rearranged forest paths, outdoor gym, children playgrounds and gazebos. The illegally built houses, fences, gardens and sewage drains along the stream were to be demolished. It was supposed to be the starting phase of the creation of the "green-blue corridors", the network of arranged forest and water sections all over the city, and the next project was already slated to be the stream of "Jelezovac potok", a tributary to the "Kaljavi potok". As of 2017, nothing from the entire project has been done.