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The Schutter relief canal (SEK) was built in 1934 to divert floodwater from the Schutter directly to the Rhine and thus relieve the Schutter-Unditz lowlands. The inspection of flood protection along the Schutter has shown that the dam heights in some areas of the SEK are not high enough and stable enough to safely drain a 100-year flood. The water profile is therefore being enlarged and the dams are being built to be stable so that a 100-year flood discharge can be safely drained. To this end, part of the dams will be moved approximately 10 m to the north during the renovation. The SEK is crossed by the Mühlbach, among other things. This is channeled under the canal using a culvert. Since the Mühlbach culvert, which is over 80 years old, no longer meets today's safety requirements and also needs to be extended, a new culvert was built in the immediate vicinity. Some demanding conditions had to be taken into account: Due to its function as a flood channel, it had to be guaranteed at all times during construction that the SEK could also drain floodwater during the construction period. At the same time, the new structure is largely below the groundwater level and the cover between the top edge of the culvert and the SEK bottom is only a few decimetres. The film shows the demanding planning and construction implementation of the new Mühlbach culvert. People involved in the construction and affected citizens also have their say. This film is intended for private use only. Distribution, rental, public reproduction or broadcasting is prohibited but is possible with written permission. SALES AND FURTHER INFORMATION © Freiburg Regional Council/Braxart Photography Department of the Environment Section 53.1 First-Order Waters Flood Protection – Planning and Construction – Bissierstr. 7, 79114 Freiburg Tel. 0761/208-0 Fax 0761/208 394 200 [email protected]