Tenders Are Invited For Construction Work – Riet Ii Sea Waterworks, Lot 3: Sea Water Intakes, Including Flushing Holes

Construction Work – Riet Ii Sea Waterworks, Lot 3: Sea Water Intakes, Including Flushing Holes. The Rwsg Supplies Around 150,000 People And Numerous Companies In The Lake Constance Region To St. Gallen. Due To Increasing Water Demand, A Lack Of Redundancies And Existing Studies, The Rwsg Is Planning To Build A New Seawater Plant Next To The Riet High-Pressure Pumping Station In Goldach To Ensure The Long-Term Regional Water Supply. The Construction Of The New Building Was Divided Into Several Lots. The Subject Of This Tender Is The Lot Of Sea Water Intakes, Including Flushing Boreholes. The Contract Includes The Construction Of Three Complete Sea Pipelines Including The Associated Extraction And Return Structures. Flushing Holes Are Created In A Section. The Pe Lines Are Pulled Through The Borehole In This Section And Laid On The Lake Bed In The Other Section. Also Part Of The Tender Is The Creation Of The Watertight Penetration Of The Sheet Pile Wall. There Are Numerous Interfaces Between Lot Seawater Catchments And Lot 1 (Civil Engineering). Close Coordination Between The Entrepreneurs Involved Is Therefore Necessary. Work For The Flushing Drilling Work Will Begin On October 1, 2026. The Partial Excavation Pit For The Flushing Drilling Will Be Created By Lot 1 (Civil Engineering). The Flushing Boreholes And Sea Pipelines Must Be Completed By March 19, 2027 (Due To The Grace Period For Lake Constance).