"Mega-canal" proposal distributed in Government

Canal running from Pennines to London would transport goods, power and water.

Aecom, an American professional services company, has proposed construction of a "mega-canal" running from the Scottish borders to London. The canal, which would cost £14bn to create, be 24m wide and run alongside a high-voltage power cable, is intended to provide solutions to future issues with water supply, power transmission and sustainable transport.

Yesterday, Construction Manager magazine reported that the proposal was implicitly supported by DECC's scientific adviser David McKay, who distributed copies to to officials at the BIS, Defra and the Department for Transport, and describes the reasoning behind it:

The canal would help to mitigate any future drought and also supply additional irrigation to the agricultural sector, by feeding Scottish water into existing waterways.

And as well as offering a sustainable alternative to road and rail freight, facilitating the movement of biomass fuel to the south, it could also carry High Voltage Direct Current (HVDC) cables in special compartments, with the water providing natural cooling.

Aecom's associate director David Weight argues that there's real hope for the proposal:

“We think that unlike HS2, local authorities would be queuing up to have a canal going through their area. As for funding, we’d anticipate a multi-stakeholder approach. There are many organisations that could either save money by using the canal or extract a toll for others to use it — for instance Scottish Power, Scottish Water, the National Grid…

The canal would also be perfect for associated developments, such as eco-towns — the power and water are already there.

The proposal is an elegant – if rather brute-force – method of combining solutions to several problems facing Britain today. Unlike the Victorian Georgian age of canals, which were primarily built for transportation of goods, Aecom envisages a greater focus being on the transportation of water, from the pennines down to the drought-ridden South East. The transmission of goods would be only secondary – although with shipping being one of the most environmentally friendly methods of transport around, it's not inconceivable that it could have a second wind.

Adding in transport of power on top, solving three problems in one, is also a very good idea. But despite that, this remains blue-sky thinking. The joined-up nature which is its greatest strength is also the single biggest reason why it's unlikely to be implemented: as good as it is at solving a number of problems, it's not likely to be the best method to solve any individual one. DECC would rather increase generation capacity; the DfT would rather focus on rails and roads; and Defra's water strategy doesn't envisage any large scale transport of water.

Instead, it's best to look at the Aecom proposal as something between a wonderful highlight of how low we now aim with our mega-projects, and porn for infrastructure geeks. With a little bit of steampunk thrown in for good measure, too – now, how about those zeppelins?

Update: @BorisWatch points out I have got my ages of canals wrong. By the time Victoria was on the throne, the railway boom had all but killed canals.

A map of the proposed route. Photograph: Construction Manager

Alex Hern is a technology reporter for the Guardian. He was formerly staff writer at the New Statesman. You should follow Alex on Twitter.

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I believe only Yvette Cooper has the breadth of support to beat Jeremy Corbyn

All the recent polling suggests Andy Burnham is losing more votes than anyone else to Jeremy Corbyn, says Diana Johnson MP.

Tom Blenkinsop MP on the New Statesman website today says he is giving his second preference to Andy Burnham as he thinks that Andy has the best chance of beating Jeremy.

This is on the basis that if Yvette goes out first all her second preferences will swing behind Andy, whereas if Andy goes out first then his second preferences, due to the broad alliance he has created behind his campaign, will all or largely switch to the other male candidate, Jeremy.

Let's take a deep breath and try and think through what will be the effect of preferential voting in the Labour leadership.

First of all, it is very difficult to know how second preferences will switch. From my telephone canvassing there is some rather interesting voting going on, but I don't accept that Tom’s analysis is correct. I have certainly picked up growing support for Yvette in recent weeks.

In fact you can argue the reverse of Tom’s analysis is true – Andy has moved further away from the centre and, as a result, his pitch to those like Tom who are supporting Liz first is now narrower. As a result, Yvette is more likely to pick up those second preferences.

Stats from the Yvette For Labour team show Yvette picking up the majority of second preferences from all candidates – from the Progress wing supporting Liz to the softer left fans of Jeremy – and Andy's supporters too. Their figures show many undecideds opting for Yvette as their first preference, as well as others choosing to switch their first preference to Yvette from one of the other candidates. It's for this reason I still believe only Yvette has the breadth of support to beat Jeremy and then to go on to win in 2020.

It's interesting that Andy has not been willing to make it clear that second preferences should go to Yvette or Liz. Yvette has been very clear that she would encourage second preferences to be for Andy or Liz.

Having watched Andy on Sky's Murnaghan show this morning, he categorically states that Labour will not get beyond first base with the electorate at a general election if we are not economically credible and that fundamentally Jeremy's economic plans do not add up. So, I am unsure why Andy is so unwilling to be clear on second preferences.

All the recent polling suggests Andy is losing more votes than anyone else to Jeremy. He trails fourth in London – where a huge proportion of our electorate is based.

So I would urge Tom to reflect more widely on who is best placed to provide the strongest opposition to the Tories, appeal to the widest group of voters and reach out to the communities we need to win back. I believe that this has to be Yvette.

The Newsnight focus group a few days ago showed that Yvette is best placed to win back those former Labour voters we will need in 2020.

Labour will pay a massive price if we ignore this.

Diana Johnson is the Labour MP for Hull North.