Again during my walks along the route, I detected two railway bridges where you'd need to walk on the rails to avoid dropping through the floor to the level below. One is located east of Wuppertal-Langerfeld immediately west of the large bridge where the A1 motorway crosses the line. There you can drop to the street below called Dieselstraße. That location is also special because some concrete pillars are at the wrong position. northern side of the line, looking west the street below position on the line, a little bit west of the flaw The other flaw on the same line is located southwest of Ennepetal, where the line crosses a country road. on the bridge, looking northeast position It seems, in both cases you're able to drop throught the thin line between gravel and concrete.