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The HOFOR WASTEWATER COPENHAGEN A/S has issued a Tender notice for the procurement of a Sst04 - Tunnel & Constructions in the Denmark. This Tender notice was published on 16 Dec 2025 and is scheduled to close on 30 Jan 2026, with an estimated Tender value of DKK 2000000000. Interested bidders can access detailed Tender information, eligibility criteria, and complete bidding documents by referencing TOT Ref No. 132133612, while the tender notice number is 836460-2025 and Registering on the platform.
Procurement Summary
Country: Denmark
Summary: Sst04 - Tunnel & Constructions
Deadline: 30 Jan 2026
Posting Date: 16 Dec 2025
Other Information
Notice Type: Tender
TOT Ref.No.: 132133612
Document Ref. No.: 836460-2025
Financier: Self Financed
Purchaser Ownership: Public
Tender Value: DKK 2000000000
Purchaser's Detail
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Login to see detailsTender Details
The tunnel project SST04 is part of the protection of Copenhagen, Gentofte and Gladsaxe against flooding in connection with cloudburst events. The Skybrud Tunnel works by the fact that when the water level in the waste water system is high, as a result of rainfall events in Copenhagen, Gentofte, Gladsaxe and Frederiksberg, water is led from the waste water system directly to the tunnel. In cases where the admitted water volume does not exceed the tunnel's capacity, the water will be stored in the tunnel. When there is capacity again the waste water system and at the treatment plant, the stored water will be pumped via discharge pumps at the bottom of the shaft at FSK for treatment at the treatment plant Lynette, through a newly established discharge line. If the rainfall event exceeds the tunnel's capacity, the water is led to Øresund via the outlet construction at FSK (Fiskerihavnen/Skudehavnen). The existing rainwater network is connected to the cloudburst tunnel via constructions below ground, the so-called connecting structures. One or more connection structures are established at most of the shafts. At Fiskerihavnen, an outlet structure and a pumping station will be established, as well as a connection to the existing waste water system at the beach wing. The pumping station consists of an underground engineering facility with a smaller building above ground. There will be 15 different workplaces. Shafts are connected by 12 tunnel sections. Overall, 13 shafts must be constructed, which must be connected with approx. 3.2 km segment tunnel and approx. 7 km pipejacking tunnel. To the shafts...
Document Type: Prior Information Notice Reference Number: SST04 Contract Type: works Estimated Value: 2000000000 - DKK Authority Type: body-pl Doc Title: SST04 – Tunnel & Konstruktioner Dispatch Date: 2025-12-12 Publish Date: 2025-12-16 Submission Date: 2026-01-30
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