HS2 Main Works S1 & S2 - WP148_Noise Barriers (precast reinforced-concrete noise barrier panels on a supply-only basis)

Descriptions

The scope for this package is the supply of 571 no. precast reinforced-concrete noise barrier panels, which will form part of the noise barrier structure to be constructed along the north and south sides of the High Speed Two (HS2) trace at the West Ruislip retained embankment and the Gatemead embankment. The noise barrier structure will also be constructed across the River Pinn Underbridge (RPU) and the Breakspear Road Underbridge (BRSU) structures. The breakdown of the required number of precast reinforced-concrete noise barrier panels is as follows: - Noise Barrier South Standard Panels: 248 no. c.5.60m-high precast reinforced-concrete noise barrier panels, with a c.30.60 deg. cranked edge commencing at roughly 2.30m high. Lengths are between 2.70m and 3.78m. - Noise Barrier South Transition Zone Panels: 16 no. precast reinforced-concrete noise barrier panels, again with a cranked edge. Heights are between 6.19m and 6.37m, with lengths between 2.95m and 2.99m. - Noise Barrier South Bridge Panels: 18 no. straight precast reinforced-concrete noise barrier panels (no cranked edge). Heights are between 5.73m and 7.00m, with lengths between 1.50m and 3.22m. - Noise Barrier North Standard Panels: 253 no. c.3.10m-high straight precast reinforced-concrete noise barrier panels (no cranked edge). Lengths are between 2.59m and 3.04m. - Noise Barrier North Transition Zone Panels: 18 no. straight precast reinforced-concrete noise barrier panels (no cranked edge). Heights are between 3.46m and 3.60m, with lengths between 2.97m and 3.00m. - Noise Barrier North Bridge Panels: 18 no. straight precast reinforced-concrete noise barrier panels (no cranked edge). Heights are between 3.23m and 4.50m, with lengths between 1.50m and 3.22m. The attached drawing provides a visual representation of the proposed noise barrier structure. The goods are to include lifting points (hooks/eyes/etc.) and tie-in points for temporary works purposes. The services are: - production of shop drawings, - design of the lifting and tie-in points, - creation of the necessary moulds, - fabrication/casting of the required precast reinforced-concrete noise barrier panels, and - delivery to SCS JV's site and SCS JV's testing subcontractor's facilities (location TBC). There may also be a requirement for storage space, depending upon the proposals for the noise barrier panels to be delivered on a just-in-time basis. Following responses to this opportunity, the supply chain will be shortlisted accordingly. Those that are successful will be invited to prequalify in order to receive a tender enquiry for the subcontract works. Prequalification will consist of 'business assurance', which will focus on the supply chain's capability, competence and capacity to work with SCS JV, as well as technical assurance which provides an opportunity to assess the supply chain's ability to carry out the subcontract works in question. It is likely that this has been classified as a 'high-risk' package (to be confirmed), whereby the 'business assurance' element of prequalification may be satisfied if the supply chain partner holds one of the Common Assessment Standard (CAS) accreditations, namely: - Achilles Building Confidence (with Site Audit), - Constructionline Platinum, or - CHAS Premier (CAS) Assured (and not CHAS H&S, for example). Further to a tender process, final selection will be based upon a balanced scorecard assessment. The criteria of this assessment will consider commercial, technical and qualitative (e.g. health and safety, quality, environment and sustainability, etc.) evidence provided by the tenderers. SCS JV is an unincorporated joint venture between Skanska Construction UK Limited ("Skanska"), Costain Limited ("Costain") and STRABAG AG ("STRABAG") working on behalf of HS2 to deliver the main civil engineering works for the S1 and S2 sectors of HS2 Phase One. The Early Contractor Involvement (ECI) stage of the contract, where SCS JV was developing a scheme design, programme and target cost to deliver the detailed design and construction phase of the project, is now complete, whereby a Notice to Proceed to Stage Two (detailed design and construction) was issued on 15th April 2020. Not only have the individual companies delivered high-speed rail, major infrastructure and some of the most iconic structures internationally, SCS JV also has a proven record of working together. Skanska and Costain have a long history of successfully delivering civil engineering projects together in the UK, dating back 30 years. In joint venture they have delivered many major infrastructure projects, including the M25 in the 1980s, High Speed 1 in the early 2000s and the current Crossrail endeavour, shortly coming to completion under the streets of London. STRABAG and Skanska have worked together for over 15 years on European projects in Switzerland, Slovakia and Norway. As a joint venture, we are bringing together our collective strength to deliver world-class engineering, contributing to the long-term economic growth of local and international markets. This is perfectly encapsulated in our mission; to draw everyone together to create a strong foundation from which to launch a transformative legacy.