The Ministry of Defence has confirmed that construction is underway on key elements of the Submarine Waterfront Infrastructure Future (SWIF) programme at Devonport, one of the largest modernisation efforts in the history of the UK’s submarine support facilities.
The update came in a series of written parliamentary answers from Defence Minister Luke Pollard to Conservative MP Ben Obese-Jecty.
Pollard stated that the programme will “provide facilities to locations such as Devonport that include a new non-tidal maintenance berth in 5 Basin, a refurbished 10 Dock, and supporting buildings and services.” He added that “significant planning has been undertaken in preparation for build, including working with the Office for Nuclear Regulation and de-risking the site for construction.”
Work on the non-tidal maintenance berth has now entered the construction phase. According to Pollard, more than 18,000 cubic metres of material have been excavated to create a 280-metre-long tunnel that will carry electrical, water, communications, and air systems essential to the nuclear safety and maintenance of berthed submarines.
The berth wall is being formed from precast reinforced concrete sections anchored into the rock to ensure long-term stability. Four trial anchors are currently being constructed as part of the engineering validation process.
The minister also outlined progress on the refurbishment of 10 Dock, which includes “trial build activity and the fabrication of a dockyard concrete batching plant to support the pace required during main dock construction.”
Earlier this year, the dockyard completed its largest single concrete pour in two decades, forming the base of the caisson that seals the dock. The next stage of caisson construction is due to begin shortly.
The SWIF programme forms part of a broader effort to ensure that the UK’s submarine infrastructure can support current and future generations of nuclear-powered vessels, including the Astute-class and Dreadnought-class submarines. In his responses, Pollard described the SWIF programme as central to maintaining “the nuclear safety and maintenance of berthed submarines” and ensuring the long-term operational resilience of the Royal Navy’s undersea capabilities.
Did the Chinese say this was ok?
“ and the fabrication of a dockyard concrete batching plant to support the pace required during main dock construction”
Surely a joke as pre fabricated concrete batching plants are put together in short days all over the world?
Of is this a special MoD spec plant?
It has to be built to nuclear safety standards and designed to resist earthquakes of up to magnitude 6 or 7.
In the USA and Australia new dry docks are costing $3-$4 billion.
Yes, I know that.
You’d know that I know that from my previous posts on here and NL.
That doesn’t change the fact that concrete batching plants are really available and usually screwed together in under a week.
And what about the 13 boats sat in no 3 basin ?
They are going to be sank to the bottom and concreated over to make a new car park
The only caveat being you can’t park there for more than an hour without iodine tablets..
Look on the bright side. You wouldn’t have much trouble finding your car at night after it was parked there for more than 3 hours.
There was a suggestion by Babcock that the Frigate Refit Complex in basin 2 should be converted to a submarine dismantling complex, once the last T23 has gone.
I’m always interested ’the latest modernization in UK history,’ seems to be everything we do now is the largest in history which always seems odd, in this case largest to support half the number of subs seems a bit excessive if it genuinely is
Well yes they are the largest in History ! Simple reason is the boats are bigger than anything built beforehand hence the maintenance facilities have to be. Same could be said for whatever replaces the present Frigate Refit Complex, non of the next generation frigates can fit inside.