The investigations include both boreholes and soundings. These will take place on Heinrich-Böll-Ring between Ellerstraße and Ennemoserstraße and on the other side of the railroad line at Immenburgstraße. The drillings will be completed within a week.

The test drillings will be carried out parallel to the railroad line. There will be no need to close the cycle and pedestrian path. There will only be a narrowing of the railway-side footpath and cycle path over a length of ten meters in the area of the Bonn West light rail stop.

The investigations are part of the planning for the construction of a cycle and footpath bridge over the railroad tracks between Heinrich-Böll-Ring/Thomastraße and Immenburgstraße. The planned bridge will connect Nordstadt and Weststadt exclusively for pedestrians and cyclists.