For a designer to bring their own personal passion into a public works project can be indulgent, or it can be fantastic. This example is the latter. Danish architect Soren Nordal Enevoldsen, who's been designing skateparks and skate shop interiors since at least the early 2000s, was tasked by the Danish municipality of Roskilde to revitalize a massive and abandoned concrete production area called Musicon. The site is exposed to a "huge amount of rainwater from the adjacent city areas," and a drainage facility was required as part of the project.

Put two and two together yet? Enevoldsen and his firm, Nordarch, designed a massive concrete area that collects and transports water into a canal. But the 24,000-square-foot drainage facility is also peppered with undulating shapes, walls curving up to near-vertical and grindable edges, meaning the resultant Rabalder Parken design doubles as a big-ass skatepark.

"The Canal itself empties rather quickly when the rain stops, and the particular water reservoir where the skatepark is placed, will only be filled approximately once every 10 years," Enevoldsen told Wired. "That means the rain will almost never have an impact on the skatepark use."

Rabalder Parken is a finalist for the 2013 INDEX Award in the Environment & Climate Adaption category. You can also check it out on Facebook.

Via Wired