These are the ventilation facilities of the former mine. The area taken over around the shaft is considerably smaller at around one hectare.
Project profile
The most important information at a glance.
Location
Polsum near Marl
Size
approx. 10,000 sqm
History
former mine
Depth of the shaft
725m
Commissioning
1979
Closure
2008
Acquisition year
2019
About the project
The site contained impressive superstructures—large concrete blocks and cylinders, which were also demolished by RAG. The surrounding area is wooded, partly with a beautiful, older hardwood stand (mainly beech).
Project planning
The forest located at the edge of the site will remain untouched. The formerly developed area will be a clearing in the surrounding forest and will create ecologically valuable forest edge areas.
Again, the details of the approach (choice of plantings or seeding, biotope creation) will still be decided gradually taking into account the findings during demolition.
Long-term approach
As with Polsum I, in the future we will first observe the development of the emerging biotopes and plan further measures based on these observations. A reforestation with a mixed deciduous forest is likely over the course of the next 100-150 years.