Upper Catchment Management

Debate between John McNally and Rachael Maskell

Wednesday 26th April 2017 Westminster Hall

[John Mc Nally (Falkirk) (SNP)]

It is a pleasure to serve under your chairmanship, Mr Paisley. I thank the hon. Member for York Central (Rachael Maskell) for securing this debate on a topic in which I think most of us are interested. I heard on Radio 4 this morning that climate change is only going to get worse. I do not know how far north other hon. Members go, but my north is certainly a wee bit further than theirs. I look forward to addressing a topic that is dear to everyone’s hearts.

The hon. Lady made a particularly interesting comment about the £49,000 a year that is required to fund research to help resolve a problem. By anybody’s standards, that is a pitiful amount to find. If that research would help to resolve a problem, the Government should, without any doubt whatever, be able to find that money.

[Rachael Maskell]

If the Government make that funding commitment, other people may come on board, so that figure could go down even further than £49,000 a year.

[John Mc Nally]

I appreciate the hon. Lady’s point. She is a vice-chair of the all-party parliamentary group on flood prevention, which I chair, and I am always impressed by her knowledge of and passion for her area and the wider field. I commend her for everything she does. As chair of the APPG, I had plans to visit some areas, but unfortunately a general election has come along in the middle of those plans. The hon. Member for Thirsk and Malton (Kevin Hollinrake) painted a picture of Pickering as a place of modern art, so if we are both re-elected, I will take the opportunity to visit that area, too.

Flooding is the UK’s predominant natural hazard, and a significant increase in properties at risk is projected in the years to come. As we all know, flooding is rarely good business. For small and medium-sized enterprises, it is sometimes a matter of survival. I learned that all too well as a councillor in Falkirk. When the River Carron is in spate, it is the second fastest flowing river in Scotland and, I assume, in the UK. During that time, I found myself helping people and businesses affected by flash flooding and saw first hand the disruption that was caused to traffic and the community.

Getting involved in finding a solution opened my eyes to the value of preventive measures. There is no doubt that an ounce of prevention is worth a pound of cure. Mitigation measures such as weirs, widening and increasing the height of bridges, and some hard defences are all needed, and mostly they are planned under the area’s flood risk management strategy. We also introduced fish ladders and a mini-hydro project, which are starting to bring additional benefits to the community. To emphasise what the hon. Member for York Central said, once one person is brought in, that seems to attract another. Groups follow, and are motivated by other people’s initiatives, including the one I am describing.

As chair of the all-party group on flood prevention and a member of the EAC, I took it upon myself recently to visit various areas—Tadcaster, Leeds, Ballater, Newton Stewart and Hoy—and began to put together, to present to the Minister, the evidence about small and medium-sized enterprises and how they are affected. I understand that a lot of good work has been done in Calder Valley. The community is extremely resilient, but there is still a continuing problem for small and medium-sized enterprises. I believe that insurance brokers there formed their own insurance funding, to help to cover such enterprises that could no longer afford to insure their businesses and properties, or, indeed, the excess amounts given to them.

I have heard people identify the need for better catchment level co-ordination between the bodies responsible for flood management in England and I have had an insight, from seeing and hearing things at first hand, into the willingness of communities to take part in flood risk management; but I have also heard their frustration, and I have heard about the reluctance of the Environment Agency, local authorities and other agencies to work with those local groups.

A water body’s catchment is the entire geographical area drained by that water body and its tributaries. Since the system is all connected, flood risk in a given part of the catchment area will be heavily influenced by what is happening above it in the catchment. Traditional flood management has focused on building hard defences and of course, as I have said, they are needed; but upper catchment management treats the catchment area as a single system, and it is vital to use natural flood management measures to slow the flow of water towards vulnerable areas. The approaches complement each other. Slowing the flow of water decreases pressures on hard defences and, most importantly, reduces the maintenance costs and the risk of failure of those already established flood defences.

Natural flood management has already been a lifeline for communities such as Pickering in Yorkshire that are too small for hard defences to be cost-effective. Such measures can have additional benefits, as has been said—trapping sediment and agricultural pollution and providing human amenities such as parklands and habitats for wildlife, including game.

The use of natural flood management at catchment scale is still in its infancy, and measuring the effects of a given flood management measure across something as hydrologically complex as a large catchment is difficult. I am certain that that fact is realised by those employed in the industry. There are risks as well as opportunities. As far as I know there is no conclusive evidence that natural flood management can be used at a catchment scale to reduce flood risk.

[John Mc Nally]

I could not agree more. It is a great example of how water does not know anything; it just goes where it has to go and there is no doubt that we need to think about how to manage the problem.

As I have said, there is no conclusive evidence that natural flood management can be used at catchment scale to reduce flood risk; if water storage capacity is added in the wrong place it, too, can increase rather than decrease the risk of flooding, so it must be considered very carefully. That is all the more reason for proper research and funding. There is a pressing need for research and projects—I know that there are projects under way around the country—but we must be careful that that is not used as an excuse for inaction. Natural flood management options have already been shown to be cost-effective management tools for managing localised flood risk in pilot projects such as the one carried out in Pickering, but even in the absence of catchment-scale flood risk reductions, it would make sense to identify areas where there is an opportunity to use NFM on a smaller scale, or where it might itself increase flood risk.

Catchment-level maps of natural flood management opportunities and risks are maintained in Scotland as part of the indicative flood maps provided by the Scottish Environment Protection Agency. As far as I am aware, in England, opportunities for natural flood management have been mapped only for a few catchment areas in Yorkshire and Cumbria. The Environment Agency has produced detailed maps of England showing where there is potential to restore different types of wetland, but not where that might impact on flood risk, which is an important point to remember.

[Rachael Maskell]

The hon. Gentleman makes a good point about the mapping that the Environment Agency has carried out. It is incredibly frustrated that it cannot get on with putting the schemes in place and with getting the research to show the best mechanisms for slowing the flow. Does that not make a further point about another agency that would benefit from the research by the University of York?

[John Mc Nally]

Once again, I agree with the hon. Lady. At the last APPG meeting, we could hear that there is an urgency for all people to work together. One of the points emerging, every time we go to a place, is that no one seems able to take a lead. Everyone is waiting on someone else to do it. It is not a lot of money in the scale of things, and it will cost an awful lot more not to do it than to do it—so I absolutely, totally agree.

We also hear the argument that NFM might not provide protection against the most extreme rainfall events. Those arguments do not seem to take it into account that by taking pressure off hard defences downstream, NFM could decrease the risk that those defences might fail, and reduce their maintenance costs.

The cost of installing and maintaining the measures is very low compared with traditional flood defences. Most use natural materials obtained on site and are easily implemented by landowners or volunteers. If anyone takes some time to look at work that has been carried out, they would be impressed by how little it takes to make these things happen.

For example, in Stroud, Gloucestershire, the local authority designed and implemented a NFM scheme that was credited with sparing the town from flooding in March 2016. The total cost so far has been circa £215,000. Previous flooding in 2007 affected 200 properties. A reservoir built in 2011 to enhance the protection of 350 properties in Gloucester cost £1.5 million. I think that makes the point clearly.

The Government announced in the autumn statement that they will invest £15 million in natural flood management in England, yet they are evasive about its allocation. Thanks to investigations undertaken by Friends of the Earth, we know that before the announcement was made, the Department for Environment, Food and Rural Affairs was commissioned by the EA to draw up plans for £20 million worth of NFM projects. When pressed about its allocation, the then Secretary of State would only say that the money would be used to test the methods. Given that large studies into the effectiveness of NFM are already under way, it seems to me that the Government need to give communities in flood-prone areas assurance that the money will be spent on implementing NFM, rather than on projects for consultants.

We have probably all heard of the Chinese saying that the best time to plant a tree is 25 years ago, and the second best time is today. Flood Re will run for roughly another 23 years. Either we implement a programme of action, or many of the 350,000 properties eligible for Flood Re will become uninsurable. Given the time that trees and wetlands need to become established, the implementation of upper catchment management has to be made a priority if it is to play a role in meeting that need. I urge the Minister to act urgently.