Engineers feed fibre over iconic Forth Bridge to speed up internet for town

Scotland’s iconic Forth Road Bridge is having two miles of fibre installed across it to carry ultrafast internet traffic for the historic town which lies in its shadow. 

Engineers are using a giant air compressor to blow a continuous stretch of glass fibre right across the Bridge at speeds of up to 60 metres per minute.  It’s the peak of a two-week project which has seen engineers work in enclosed steel tunnels under the Bridge’s footpaths to prepare ducts for the new fibre link. 

Openreach call this a “unique engineering challenge” which has been six months in the planning. The new 16mm fibre cable – containing 432 tiny glass fibres each a tenth the size of a human hair – will deliver gigabit-capable internet services to thousands of residents and businesses on the south side of the estuary. 

Work on the new, ultra-reliable network has already started in South Queensferry – one of more than 260 communities across Scotland set to benefit from Openreach’s nationwide five-year, full fibre upgrade. 

Katie Milligan, Chair of Openreach’s Scotland Board, said: “This is a unique moment for civil engineering in Scotland as two huge infrastructure projects come together. We’re building a new ultrafast digital highway – and going across the Forth Road Bridge is the fastest, most direct way to get it done. 

“It’s impossible to join up spans of fibre on the Bridge, so it has to be done in one long piece. It’s amazing to think that these tiny fibres will future-proof the internet for thousands of homes and businesses on the south side of the Bridge for decades to come. 

“This is a once-in-a-generation engineering task to make broadband fit for the future, and we’re proud to be literally bridging the digital divide across this iconic landmark.”

In addition to the work on the Bridge itself, engineers have built another one and a quarter miles of fibre to the north approach, with the new network linking back to a main fibre hub in Inverkeithing, Fife.

Katie added: “As we saw during lockdown, good connectivity reduces pressures on our road network, and can cut emissions, by giving many Scots the ability to work where they live. It’s great to see the iconic Forth Road Bridge play a part in a new, digital era which, like the Bridge itself, will serve Scotland for generations.”

Chris Tracey, Unit Bridges Manager for BEAR Scotland, which is responsible for the road bridges and has worked closely with Openreach to plan the project, said: “We were pleased to facilitate safe access on the Forth Road Bridge for Openreach to carry out this major upgrade, and we look forward to the benefits it will bring to local residents and businesses.”

(Picture – Openreach)

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