As of: March 26, 2024, 9:00 a.m
By: Wolfgang Schörner
Comments
Press
Split
The municipality of Iffeldorf has had a concept drawn up for heavy rain management.
The Skepter study identified areas at risk and made recommendations to reduce the risk.
© Ralf Ruder
The results of a study are now available in Iffeldorf that identify streets and buildings that could be at risk of flooding in the event of heavy rain.
As expected, these include the area around Faltergatter and Alpenstrasse as well as the Hofmark.
The study also provides advice on how to reduce the risk.
Iffeldorf – A year ago, the municipality of Iffeldorf commissioned the concept for so-called heavy rain management.
Funded by the Free State, it is intended to show how the risk of flash floods and flooding can be reduced during heavy rain.
A preliminary result was now available to the Iffeldorf local council, including recommendations for the community and private owners.
Mayor Hans Lang (SPD) said at the beginning that climate change cannot be explained away, including the associated heavy rain events.
A year ago, the local council was of the opinion that they should prepare, as there were problem areas in Iffeldorf too, less with constant flooding than with sudden flooding.
The company has prepared risk analyzes for many municipalities
Florian Brodrecht from the Spekter company in Herzogenaurach, which prepares risk analyzes for many municipalities, explained the results of the study.
The order intended to examine the entire municipal area, said Brodrecht.
A digital terrain model was used, supplemented by additional data, which resulted in a heavy rain hazard map with flood areas and water depths.
The results are sometimes very detailed and you can “determine the danger situation in detail,” he explained.
Three areas in Iffeldorf highlighted
In his lecture, Brodrecht highlighted three areas in Iffeldorf.
On the one hand, he discussed the Hofmark, where there is a local low point where water from the west, south and east flows together, the main part of which flows west past the primary school.
Some precautions have already been taken there, for example by raising the main entrance, he explained.
Brodrecht also discussed Heuwinklstrasse.
There he recommended a “relatively simple measure” to relieve pressure: the installation of a drainage channel to divert water towards the north.
Precautions for the residential area of Faltergatter and Alpenstrasse
The third area he named was the topographically lower area of Faltergatter, Alpenstrasse and Benediktenwandstrasse with their “local damming points”, which is repeatedly affected by heavy rain.
The idea here is to hold back the water from the southern area, for example through a drainage ditch.
According to him, drainage to the east towards Bodenbach was also examined.
However, this would be complex because the line would have to be routed under the railway line and state road.
He advised that precautions should be dimensioned in such a way that an expansion of the building area south of the butterfly gate is taken into account.
No flash flood events like those in the Ahr Valley are expected
The good thing, said Brodrecht, is that no flash flood events like those in the Ahr Valley are to be expected in Iffeldorf because it doesn't have the steep topography and the large catchment area, but local flooding does.
My news
Sweater, park bench, daffodils: The hidden messages in Princess Kate's video reading
“That’s disrespectful”: Civil servants earn as little as citizens’ benefit recipients – and the traffic lights are watching
Seriously injured ski jumping ace with devastating bedside diagnosis
Skoda's novelty with a combustion engine impresses fans - read “It's sustainable”.
Motorcyclist from Munich has to return on foot - and takes out anger on construction yard employees
Many adults are gifted and don't know it: These characteristics speak for reading
According to Brodrecht, heavy rain management also includes recommendations about what the community and private owners can do.
According to the law, he said, every person has a duty, within reason, to protect themselves from such events.
Brodrecht explained that water can enter the house through light wells, basement drains and sewer back-ups.
Countermeasures include backflow protection, permanent protection for light wells or mobile protection systems, for example a bulkhead or sandbags.
Hazard maps for heavy rain events
According to Brodrecht, the heavy rain hazard maps will be published after the end of the project, and the details are still being examined.
For example, detailed sections of the building could be made available exclusively to the respective owner.
In any case, the local administration will receive them in full, probably in May, in order to include the results in building applications.
For example, as happened in Seeshaupt, the municipality can then approve a higher floor slab if the planned house is to be built in an endangered area.