The Riguinha Stream in Matosinhos, Portugal, faces severe environmental and urban challenges. Decades of industrial pollution and poor waste management have degraded its waters, causing contamination that affects the nearby Matosinhos Beach, where restrictions are often imposed. The stream also acts as a physical
barrier, isolating social housing neighborhoods from the urban center, fragmenting communities. In a city defined by its fishing heritage and maritime connections, the stream remains a visible scar on the urban landscape. An intervention is needed to restore its ecology and reconnect the urban fabric, unlocking its potential as a vital part of the city.