Source: https://tendernation.io/opportunities/01a13b92-6b3f-73df-9c2a-167cc6e94854/scope-of-project-has-not-changed-extension-of-tender-period-allowed closed GB open procedure # Scope of Project has not changed, extension of tender period allowed [City of London Corporation](https://tendernation.io/buyers/city-of-london-corporation) Incumbent usually keeps it Estimated value £9,400,000 Published 23 Sept 2022 Deadline Closed 1 Sept 2022 ## Who can bid - Open procedure Anyone can submit a full tender; there is no shortlisting stage. ## About this tender The City invites contractors to submit a formal tender submission for the provision of Decommissioning of Cooling Water Tunnels at Barking Power Station Site. The Barking Power Station is a 16.9ha site located in Dagenham, East London, which is being decommissioned to redevelop the site. The City of London is considering the site as an alternative location for two or more of the three City of London markets. The project entails decommissioning of the two cooling water tunnels: the intake and outfall with associated headworks. The proposed works consider that the tunnels under the land are to be backfilled. The objective of the backfilling is to meet the requirement of existing deeds for the tunnels. Filling the tunnels ensures that in the event of tunnel collapse due to lining degradation, there will not be significant settlement in the ground above the tunnel. The pump station is to be partially demolished and backfilled to allow the redevelopment of the site. The outfall structure in the River Thames is to be demolished to remove a navigation hazard. ## CPV classification Construction work for bridges and tunnels, shafts and subways Site preparation work Construction work for tunnels Source Find a Tender (UK) · Notice ocds-h6vhtk-03496b-2022-09-23T15:38:02+01:00 [View official notice](https://www.find-tender.service.gov.uk/Notice/ocds-h6vhtk-03496b-2022-09-23T15:38:02+01:00) 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 City of London Corporation: past awards and live tenders](https://tendernation.io/buyers/city-of-london-corporation) [Sector More Construction work tenders](https://tendernation.io/sectors/construction-work) ## More tenders like this [Bannister Sports Centre Athletic Track Soft Market Testing Exercise · Harrow Council · 38 days left · 26 Nov 2026](https://tendernation.io/opportunities/01a1540d-d9e4-71cb-ad57-1603e9042fec/bannister-sports-centre-athletic-track-soft-market-testing-exercise) [Building construction work – Budowa budynku mieszkalnego wielorodzinnego wraz z infrastrukturą techniczną w miejscowości Szczucin · KZN SIM Tarnów Sp. z o.o. · 7 days left · 26 Oct 2026](https://tendernation.io/opportunities/01a156a9-d859-7328-9ee6-a304ce645326/poland-building-construction-work-budowa-budynku-mieszkalnego-wielorodzinneg) [Plastering work – Modernisierung und Erweiterung Matthias-Claudius-Heim Würzburg · Diakonisches Werk Würzburg e.V. · 1 day left · 20 Oct 2026](https://tendernation.io/opportunities/01a156a9-e605-706f-8937-7f0ba18339c0/germany-plastering-work-modernisierung-und-erweiterung-matthias-claudius-hei) [Floor-covering work – Universität Leipzig, Leuschnerplatz, Global Hub, Forschungsneubau · Staatsbetrieb Sächsisches Immobilien- und Baumanagement, Zentrale, Zentralstelle Vergabe- und Vertragsmanagement · 3 days left · 22 Oct 2026](https://tendernation.io/opportunities/01a156a9-acfc-73ee-baab-9e699f88521a/germany-floor-covering-work-universitat-leipzig-leuschnerplatz-global-hub) [Heating plant construction work – Petrašiūnų elektrinės elektrifikacija, įrengiant elektros energijos kaupimo įrenginius, dyzelinį generatorių ir rekonstruojant 6 kV skirstyklą (projektavimas ir rangos darbai) · Akcinė bendrovė „Kauno energija“ (PV) · 7 days left · 26 Oct 2026](https://tendernation.io/opportunities/01a156a9-6f1d-727f-a077-bc25dec93b92/lithuania-heating-plant-construction-work-petrasiunu-elektrines-elektrifikac) [Demolition work – Rück- und Neubau Lichthochmaste · Hamburg Verkehrsanlagen GmbH · 7 days left · 26 Oct 2026](https://tendernation.io/opportunities/01a156a9-6ef0-7276-94e2-d5fa0cb2d6c7/germany-demolition-work-ruck-und-neubau-lichthochmaste)