Usability of data from the Geoportal (NRW)

Hello everyone,

during my information search, I came across the "Geoportal NRW." Since our soil survey is still a long way off at the moment, I was surprised to also find an overview of "diggability" and the soil water conditions there. Of course, these maps do not replace the soil survey and, scaled to the size of a plot, they are probably not very accurate either, but as an initial assessment or overview, they could be quite useful.

Here is an excerpt from the data provided on the topic of "diggability." As an overview, selected areas are initially divided into different categories from "easily diggable" to "extremely difficult to not diggable." In addition, the following data are provided (if available):

[*]Groundwater
[*]Stagnant water
[*]Soil valuation numbers
[*]Soil protection priority
[*]Erodibility in the topsoil
[*]Water supply for cultivated plants
[*]Rooting depth
[*]Usable field capacity
[*]Field capacity
[*]Cation exchange capacity
[*]Saturated hydraulic conductivity
[*]Capillary rise rate
[*]Boundary distance to adjacent fields
[*]Infiltration tendency in the 2-meter zone
[*]Ecological moisture level
[*]Total filtering capacity in the 2-meter zone
[*]Diggability in the 2-meter zone

How usable do you consider the data for us builders? Could the diggability, in particular, provide an initial indication of possible costs for earthworks?

Thanks for your assessment!

The geoportal can be quite useful. For example, to find out whether a property serves as a floodplain for a river or even just a stream (at least if such planning exists for that stream). Besides the natural environmental aspects, information about human noise, such as railway lines, highways, federal and state roads and their noise development, as well as flight routes, are also good there.

You can also find the location of measuring points, well drillings, or wind turbines (and other ecological installations).

Some things are useful, but it does not even remotely replace a soil/building ground survey. At best, it can be used to write the one-sided introduction of a 30-page report.