2017 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 2017 (data is from September 2016)
Category Infrastructure - see all reports for this category
Description: The Thames Tideway Tunnel project will protect the River Thames in London from sewage discharges arising from an old and at-capacity sewerage network. Bazalgette Tunnel Limited (also known as Tideway) is the Infrastructure Provider appointed to deliver and finance the project, along with enabling and interface works that are being led by Thames Water Utilities Limited. The project has now entered the construction phase. Defra is the lead department that monitors the potential risks to the taxpayer that may arise from the project, including potential calls on the contingent financial support package provided by Government for the project to cover certain remote but high impact risks.
DCA (RAG) Amber/Green
DCA text: The construction phase has commenced. The project is on track (construction began ahead of schedule) and on budget. Project monitoring and governance arrangements are in place and maturing as construction gets underway. Internal assurance mechanisms for the project are being put in place for when the project exits the Government Major Projects Portfolio during 2017, including ongoing delivery and reporting support from the Infrastructure & Projects Authority.
Start date 2010-09-07
End date 2023-12-31
Schedule text Project is on track to deliver to current timelines.
Baseline £1.50m
Forecast £1.50m
Variance 0.00%
Variance text: Budget variance less than 5%
Whole Life Cost £4,159.80m
WLCost text: The whole life cost is made up of two elements: the whole life capital cost of tunnel construction of £4.14bn to be funded by ‘Tideway’ and Thames Water Utilities Limited, which relates to the private sector project; and the Government costs, estimated in October 2016 at £23.7m. The Government costs relate exclusively to monitoring the risks to a call on the Government Support Package 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_2017.csv

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