Public procurement notice: Contract Notice
Published: 2019-12-04
Buyer: Oslo kommune v/Vann- og avløpsetaten
Country: NO
Contract type: Works
Procedure: Open procedure
CPV classification: 45000000: Construction work | 45221240 | 45231300
Submission deadline: 2020-02-24
Award criteria: The most economic tender

Technical requirements: The Norwegian Food Safety Authority has instructed Oslo Municipality (The Client) to establish a reserve water supply within 2028. Holsfjorden has been selected as the water source for the new water supply in Oslo. Water will be routed in a tunnel from Holsfjorden to a new underground water treatment plant which will be located at Huseby in the western area of Oslo. From here, potable water will be routed to the existing potable water supply network in Oslo.
The project is scheduled for construction start in 2020 and completion in 2028. The detailed development plan was approved by Oslo Municipality on 13.11.2019. The project funding was approved at the same time based on the quality assurance (KS2) of the feasibility study/pre-project.
Work description: Rig area Husebyjordet is the main rig area for the contract work. The work consists of, but is not limited to the following:
— preparation for tunnel operation with construction of waste water treatment plant, cleaning station, installation of grid station, etc.,
— conversion of 47 kV overhead line to cable in trench, including design and construction of new composite end mast and remediation of existing masts and cables,
Work description: access to the rig area is via Statnett's rig area next to Smestad recycling station. The contractor must expect coordination with Statnett for access. The work consists of, but is not limited to the following:
— preparation for tunnel operation with construction of waste water treatment plant, cleaning station, installation of grid station, etc.,
Work description: a smaller rig area shall be established at Sollerud. The work consists of, but is not limited to the following:
— preparation for tunnel operation with construction of waste water treatment plant, cleaning station, installation of grid station, etc.,
— design, procurement and installation of tunnel canvas in the rock cavern for new odor reduction system,
— demolition of existing bio filter odor reduction system, with associated technical support systems,
Work description C101 and C102: Tunnels Husebyjordet consist mainly of drilling, blasting and excavation of tunnels from portal at rig area B302. Tunnels Huseby ski facility consists mainly of drilling, blasting and excavation of tunnels from portal at Rig Area B303. The work consists of, but is not limited to the following:
See part VI.3 Tilleggsinformasjon for the rest of the information on the scope of work under the contract.
Work description: The portal on area B302 can, as an option, be replaced by a combined portal and parking basements for a future operational building. The parking basement consists of 2 lower floors, with in situ casted walls, hollow deck elements and a steel support system. It must be blasted for the parking basement in connection with the cut-off for the access tunnel. The underground water and sewage and HVAC infrastructure is included in the option.
Work description: The treated water tunnel consists mainly of drilling, blasting and excavation of tunnel from Huseby towards Smedstad. The work consists of, but is not limited to the following:

Eligibility requirements: Qualification criteria: the contractor shall be a legally established company. Documentation requirements: — Norwegian companies: company certificate. The Client obtains a company certificate for Norwegian contractors from www.brreg.no — foreign companies: documentation that the company is registered in a trade register or business register as prescribed by the law of the country in which the contractor is established.