LGRB-BW ISONG: Excavability at 1-2 m depth

The excavability of the underground is derived from the petrographic description of the soil map 1: 50 000 (BK50) and Geological Map 1: 50 000 (GK50) derived. If then found in the first meter of solid rock or block-containing loose rock, the subsurface is rated as not or very difficult to dig. If between the first and second meters shy loose rock or sometimes solid rock or block-containing loose rock is found, the subsurface can only be digd to a limited extent. Even if the subsurface is considered to be digging, there may be local restrictions. Within settlements, however, only the geological map is not available, so the uncertainty of the data is increased.