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Devonport Dockyard: Repairs and Maintenance

Answer

The Submarine Waterfront Infrastructure Future (SWIF) programme will provide facilities to locations such as Devenport that include a new non-tidal maintenance berth in 5 Basin, a refurbished 10 Dock, and supporting buildings and services. Significant planning has been undertaken in preparation for build, including working with the Office for Nuclear Regulation (ONR) and de-risking the site for construction.

The construction phase of the berth has commenced, with the excavation of more than 18,000 cubic metres of material, which will form the 280-metre-long tunnel that will carry electrical, water, communications and air services vital to the nuclear safety and maintenance of berthed submarines. The berth wall will be formed from a series of precast concrete reinforced sections secured by rock anchor to provide the required stability; as a precursor to this work four trial anchors are currently under construction.

Progress against 10 dock refurbishment includes trial build activity and the fabrication of a dockyard concrete batching plant, which will support the pace required during main dock construction. Significant volumes of concrete were also poured in the Spring this year, the biggest single pour in 20 years at the dockyard, to form the base of the caisson which seals the dock. The next phase of caisson construction activity is due to commence in the coming days.

Secondary information

Type

Written question

Reference

79709

Session

2024-26

Grouped for answer

Yes

Subjects

Devonport Dockyard Submarines Repairs and maintenance

Link

View this Written question on www.parliament.uk