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First ever River Humber walk-under as gas pipeline tunnel completes

National Grid welcomes Hull businessman Graham Boanas to complete rare feat in recognition of previous charity efforts

Businessman and charity fundraiser Graham Boanas is the first person to walk through the completed National Grid gas pipeline tunnel beneath the River Humber.(Image: National Grid)

Construction of a 5km tunnel underneath the River Humber, described as an extraordinary feat of civil engineering, is complete.

National Grid and its specialist contractors have delivered the pipeline to support the 海角视频 gas network, with the embedded structure stretching from Paull in East Yorkshire to Goxhill in North Lincolnshire, 30m underneath the ‘Energy Estuary’.

Completion was celebrated with Humber-crossing loving fundraiser Graham Boanas being given an exclusive walkthrough, making history.

The 6ft 9in Hull businessman has raised £160,000 for charity, having walked across at low tide and swam, as well as used the bridge.

The first people walk through the completed National Grid gas pipeline tunnel beneath the River Humber, led by businessman and charity fundraiser Graham Boanas.(Image: National Grid)

He said: “I’m thrilled that National Grid’s River Humber pipeline project has given me this once in a lifetime experience. It’s fantastic that I’ve had the opportunity to experience the otherworldly environment of the tunnel, walking through it side by side with the team that built it.

“I now must also hold the world record for the number of ways I have crossed the Humber. I’ve crawled and waded across it at low tide, swam through the high tide in a special suit and walked over the Humber Bridge, but walking beneath the Humber through the tunnel was by far the most unique experience. I’d like to thank everybody involved from National Grid and its partners who made this experience possible for me - it’s been absolutely fantastic.”

He was granted the opportunity ahead of the tunnel being completely flooded with water prior to pipe insertion.

Steve Ellison, lead project manager on National Grid’s River Humber Pipeline project, said: “We’re really pleased that Graham could come and join the project team to celebrate the great engineering feat of building the first tunnel underneath the Humber. This is transformational engineering at its best and we’re really pleased that we’re able to celebrate this with such a brilliant event.
The first people walk through the completed National Grid gas pipeline tunnel beneath the River Humber, led by businessman and charity fundraiser Graham Boanas.(Image: National Grid)

“In spring 2020, we’ll push our 5km gas pipeline through the tunnel. This will be a world record breaking event, with our project being the longest hydraulically inserted gas pipeline in the world. On completion, we will have a vital pipeline which can provide up to a quarter of Britain’s gas supplies.”