Water construction project: Sarneraa in Alpnach

Project overview

The Sarneraa river has substantial ecological and flood protection deficits in the section from the Wichelsee weir to the point where it enters Lake Alpnach. Two water construction projects are designed to make the Sarneraa river flood-safe and to give it an ecological makeover. In addition, the bed-load balance of the Sarneraa river is to be restored by adjusting the sediment traps in Schlierenrüti.


Building and Regional Development Department of the Canton of Obwalden

Our services

Overall project management during the development of the concept of measures for Sarneraa Alpnach, overall project management during the construction and detailed planning project, including the approval procedure for the water construction project Sarneraa Alpnach I, management and coordination of the expert planners and specialists, involvement in the land acquisition negotiations and assistance with the further involvement of parties involved and with PR work.

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