Source: https://tendernation.io/opportunities/01a13d14-770d-7123-97b8-c0139e89e8d3/bbv-attenuation-tank-pre-cast closed GB open procedure Suitable for SMEs # BBV Attenuation Tank Pre-Cast [Balfour Beatty VINCI JV HS2](https://tendernation.io/buyers/balfour-beatty-vinci-jv-hs2) Estimated value £500,000 to £1,000,000 Published 8 Sept 2025 Deadline Closed 19 Sept 2025 ## Who can bid - Buyer says suitable for SMEs The buyer ticked “suitable for SMEs” on the notice. Anyone can still bid. - Open procedure Anyone can submit a full tender; there is no shortlisting stage. [More contracts for small businesses and VCSEs](https://tendernation.io/opportunities/for-small-businesses) ## About this tender The scope of work includes design and supply of a precast Attenuation Tank for Duddeston Mill Road North, Birmingham. The tank will be made from precast concrete elements and will have an overall internal length of 31m and an internal width of 8.35m with a clear height of 1.70m. The structure will consist of a two-span box structure. A minimum of 2 no. access points to the tank are proposed close to the inlet and outlet locations, 750x750mm openings . The whole attenuation tank will be a fully precast concrete structure. The tank segments are fully integral twin-cell box structures without joints. Precast tank units shall be joined longitudinally by a concrete spigot and socket joint. ### Minimum design working life for each element The precast concrete elements of the tanks should have a design working life of not less than 120 years (Category 5). Concrete cover has been specified to achieve this lifespan. Other sub-elements will have the following design working lives: • Waterproofing: 30 years. • Sealants to joints of precast units: 20 years to first maintenance. ### General notes - Design, supply and delivery only - Future waterproofing proofing rebate to be proposed and agreed at design stage - Lifting points to be included in the design - Anticipate delivery of units with bituminous waterproofing system applied - Integrated joint waterproofing with compressible strip and - Assumptions and exclusions to be included Additional information: Suppliers should be aware of the scale of this project and should assess their internal capabilities to be able to carry out the intended scope of work, prior to completing this expression of interest (EOI). Read full description ## CPV classification Reinforced-concrete structures Source Contracts Finder (UK) [View official notice](https://www.contractsfinder.service.gov.uk/notice/f44e98b7-b903-4534-8cd2-dd102c965a59) Never miss a tender like this again Get AI summaries, deadline alerts and a bid pipeline for tenders matched to your business. Free to start. [Track tenders free](https://tendernation.io/register) [Buyer profile Balfour Beatty VINCI JV HS2: past awards and live tenders](https://tendernation.io/buyers/balfour-beatty-vinci-jv-hs2) [Sector More Construction work tenders](https://tendernation.io/sectors/construction-work) ## More tenders like this [Boiler chemical and Softener Services · Maidstone and Tunbridge Wells NHS Trust · 29 days left · 16 Nov 2026](https://tendernation.io/opportunities/01a1539a-d092-736b-88d2-6bdc251cddb6/boiler-chemical-and-softener-services) [Motorway construction works – A02 Süd Autobahn, INSB V03 - V04.2, AB-Km 339,70 - AB-Km 342,58 - Instandsetzung Straße und Brücke · Autobahnen- und Schnellstraßen-Finanzierungs-Aktiengesellschaft · 3 days left · 22 Oct 2026](https://tendernation.io/opportunities/01a15183-585a-70dc-aba4-2c3f03da9015/austria-motorway-construction-works-a02-sud-autobahn-insb-v03-v042-ab-k) [Firefighting equipment installation work – Schaumlöschanlage (VE067), CVK, DHZC · Charité - Universitätsmedizin Berlin · 2 days left · 21 Oct 2026](https://tendernation.io/opportunities/01a15183-b929-71a2-940b-7b81046361a8/germany-firefighting-equipment-installation-work-schaumloschanlage-ve067) [Metalworking – SFA REKiZ - Metallbau Außentüren · St. Franziskus-Hospital Ahlen GmbH · 2 days left · 21 Oct 2026](https://tendernation.io/opportunities/01a15183-2dfb-7368-8071-ee198ab4b3d3/germany-metalworking-sfa-rekiz-metallbau-aussenturen) [Underground work other than tunnels, shafts and subways – Neubau Psychotraumazentrum Tiefbauarbeiten - Herstellung Baugrube und vorbereitende Tiefbauarbeiten - BWK Berlin · Staatl. Hochbauamt Ulm · 3 days left · 21 Oct 2026](https://tendernation.io/opportunities/01a15183-bfe8-7230-9405-2a95f84ab885/germany-underground-work-other-than-tunnels-shafts-and-subways-neubau-psych) [Demolition work – Baumeister - Sanierung der ehem. Bleikristallfabrik Beyer & Co. · Gemeinde Altenstadt/WN · 2 days left · 21 Oct 2026](https://tendernation.io/opportunities/01a15183-d024-7097-85da-e978a119d95d/germany-demolition-work-baumeister-sanierung-der-ehem-bleikristallfabrik)