Ilabekken - a rehabilitied urban watercourse

Ilabekken - a rehabilitied urban watercourse

Water FeaturePark/Recreation AreaEco-Tour/Nature WalkAquatic HabitatNatural Corridor/GreenwayEco-Design/Planning FeatureCleaned-Up/Rebuilt Site


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Until 2008 the Ila stream had run underground in pipes and was heavily polluted. Wastewater from houses and factories was discharged directly into the stream. Before the twentieth century the stream had been home for sea trout and many other species, but this habitat was destroyed by poor water quality and the burial of the watercourse. Now the Ilabekken is rehabilitated and opened again. The water quality is restored and sea trout have returned.

The rehabilited and revitalized Ila valley is now a unique urban wilderness area. It is a popular site for walking and recreation, with the lower stretch of the stream running through parkland. The rehabilitated watercourse has been engineered to withstand severe flooding, securing the area against the extreme precipitation predicted by climate-change modelling.


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image added by Trondheim Norge


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