Entreprise - 420768 Fossumdalen Stage 5-6, Ledningstrase Tender

• Country: Norway
• Summary: Entreprise - 420768 Fossumdalen Stage 5-6, Ledningstrase
• NOT Ref No: 138191788
• Deadline: 04 May 2026
• Financier: Self Financed
• Purchaser Ownership: Government
• Tender Value: NOK 65000000
• Notice Type: Tender
• Document Ref. No.: 2026-105449
• Purchaser's Detail:
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• Description:
• Entreprise - 420768 Fossumdalen stage 5-6, Ledningstrase "Fossumdalen stage 5-6 - Ledningstrasé" is part of a larger VA project in Trondheim municipality that has gone, and will go, over several stages. The purpose is to reduce the amount of overflow that is supplied to Nidelva from the drainage network by establishing a separate main trunk for VA from the drainage zone Lerkendal where stormwater is led to Nidelva, and waste water is led to the Høvringen treatment plant if it falls. In "Fossumdalen stage 5-6, Ledningstrasé" the existing spillway (OP04) established in "Fossumdalen stage 4 is connected to the Høvringen drainage tunnel via a diving line under the Nidelva with a flushing reservoir. The pipeline system starts with rock drilling from the west side of Osloveien south of Stavne into the Høvringen drainage tunnel. Under Osloveien is laid drainage line through a constructed pipe, and in a dug trench to the east between properties in Sivert Dahlens road. Under Nidelva to Valøya, the line is carried out as controlled drilling. Above Valøya and up to Valøyslyngen, the cable is laid in a dug trench. In Valøyslyngen, wiring is carried out increased dimension which, together with the existing volume in the existing drainage lines upstream OP04 (new spillway), functions as a flushing reservoir for the diving line. The flushing reservoir must be emptied via a flush sump, and the facility must be arranged for the supply of water from The municipality's water mains. A new VA will also be laid from OP04 (new spillway) to the intersection between Alfred Larsens gate and Valøyslyngen. From the intersection between Alfred Larsens gate and Valøyslyngen, a new water main will be laid in sa...
• Documents:

 Tender Notice