Hydraulic Engineering Plan Unter Frittenbach - Phases 41-53

The watercourse corporations Rüderswil and Lauperswil have commissioned a hydraulic engineering plan for the Unter Frittenbach. The objective is to increase the discharge capacity up to a discharge HQ100 or, if sufficient to achieve the protection objectives, up to a discharge HQ30. To achieve this, the channel cross-section will be widened and the bed lowered. Additionally, where space conditions permit, the embankments will be designed with shallow slopes. The project perimeter extends over a length of approximately 3 km between the confluence of the Leengraben and the mouth of the Unter Frittenbach into the Emme. The project also includes measures in the confluence areas of the Leengraben and Badertschergraben. Implementation is planned in four phases. The subject of the commission concerns planning services for phases 41 and 51–53 and includes services for overall planning, specialist planning in hydraulic engineering, bridge construction and road construction as well as environmental site supervision and pedological site supervision.

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