Highways (Financing) Bill (Second sitting)
<strong>Q</strong><strong><QNum HRSContentId="{FCF144AB-C860-4D20-9287-2F09768FB4A6}"> </QNum></strong> I will bring in Sam in a second. How much more will banning diesel in the plant to construct the lower Thames crossing add to the construction cost, which will ultimately come out in the toll people are charged to use it? Are there any other things you have identified that will put the cost up? <em><strong>Ben Hopkinson:</strong></em> I do not have a specific number for it, but it is a regulation that might lead to a different form of construction than they would have chosen were they going purely for value for money. Across the piece, the lower Thames crossing has been racked by planning delays, which I am sure we are all aware of. It was designated a national priority project in 2011 and it took 14 years, 360,000 pages and £300 million to get planning approval. That all adds cost. When the project started going through, it was projected to cost about £4 billion. Then international events got in the way and it is now projected to be over £10 billion. Moving quickly saves costs. Our slow planning system has been a real driver of added cost here. <em><strong>Sam Dumitriu:</strong></em> Cost control is one of the most important issues here. If you look at road building generally, the big problem in the UK is that we have a very large construction cost premium. Britain Remade has looked at 345 infrastructure projects across the world, of which 121 were road projects. On average, the UK pays about 65% more to build a given mile of road or railway. It is a bit less for road on average, but when you look at more complicated projects like the lower Thames crossing, it tends to creep back up. Many people often dismiss our problems around infrastructure as a problem of too little money going in, but over the past five years or so—a period that includes covid, but also years either side of it—we spent about £308 per head on Government public infrastructure investment. In France it is more like £271 and in Germany about £251. When you account for that cost premium, we end up getting about £180 of what the French or the Germans would get. For me, that is the No.1 problem. About £300 million has been spent on the planning process for the lower Thames crossing. If you add together the world’s longest road tunnel, which was built in Norway, and a tunnel built 282 metres under the <span id="29" class="column-number" data-column-number="29"></span>sea, you just about reach that. They are building much more complicated projects for much less. You can talk about how it is more difficult to build due to UK geographical or geological issues, but fundamentally, just those front-loaded costs make it very difficult to build anything cost-effectively. Because of that, there is a risk that this model is adopted as a way of taking some of those costs off the books without the right level of scrutiny.