2016 Report details for project: Thames Tideway Tunnel

Project name Thames Tideway Tunnel - there are 4 reports for this project: 2014, 2015, 2016, 2017
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Organisation DEFRA (D7) - see all reports for this organisation
Report year 2016 (data is from September 2015)
Category Infrastructure - see all reports for this category
Description: The planned Thames Tideway Tunnel is the most cost effective, comprehensive and timely solution to address the problem of combined sewer overflows into the Thames in London, and is due for completion in 2023. Following the procurement and licence award the duty to build the Thames Tideway Tunnel falls to ‘Bazalgette Tunnel Limited’ (also known as ‘Tideway’), with some work being done by Thames Water Utilities Limited. Oversight of customer interests falls to Ofwat. As lead Department, Defra is responsible for the regulatory regime for the water sector. Defra is also the lead department in managing risks to the taxpayer that arise from the requirement for contingent government support that enhances the credit of the project and enables the capital markets to finance the Tunnel. During the construction phase Defra will work closely with Tideway, Thames Water, and Ofwat, through the Liaison Committee to track progress and ensure customer and taxpayer interests continue to be protected.
DCA (RAG) Amber/Green
DCA text: With licence award and signing of the Government Support Package, the development, planning and procurement phase of the project has been delivered. The construction phase has only just started and there are no indications to suggest that this is not on track or that there is an increased risk to Government. Wider project governance has been developed and is being tested.
Start date 2010-09-07
End date 2023-12-31
Schedule text Project is on track to deliver to current timelines.
Baseline £2.38m
Forecast £3.00m
Variance 26.05%
Variance text: The 2015/16 variance relates to a higher then anticipated requirement for external advice in the development and approval of the Government Support Package to ensure Government’s interests are fully protected.
Whole Life Cost £4,221.10m
WLCost text: The whole life cost is made up of two elements: the whole life capital cost of tunnel construction of £4.2bn to be funded by ‘Tideway’ and Thames Water Utilities Limited, which relates to the private sector project; and the Government costs, estimated in September 2015 at ?21.1m. The Government costs relate exclusively to the Enabling Project and include staff costs for the Thames Tideway Tunnel Project Team in Defra and their external advisers. Information on the overall capital costs can be found in Defra’s publication “Costs and benefits of the Thames Tideway Tunnel - 2015 update”
Sourcefile IPA_2016.csv

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Acknowledgement: GMPP data has been re-used under the Open Government Licence.