National Highways looks to a natural approach to managing flooding

National Highways has awarded more than £420,000 to 13 Natural Flood Management projects in the first round of the project covering parts of the Little Don, River Etherow and River Irwell catchments.

It comes as the international community at the UN climate change conference COP26 on Saturday (6 November) celebrated Nature Day, devoted to ensuring the importance of nature and sustainable land use are part of global action on climate change and a clean, green recovery.

Natural Flood Management (NFM) is an emerging approach to addressing flood risk. NFM measures slow or store water in the landscape by emulating or enhancing natural processes.

Examples include changing the way land is managed so soil can absorb more water, creating storage ponds, planting woodlands and hedgerows, as well as constructing “leaky dams” which are natural barriers that regulate the flow of surface water run off.

The fund is being delivered in partnership with the Don Catchment Rivers Trust and the Mersey Rivers Trust. Routes on the strategic road network due to benefit from the pilot measures include the M60, M62, M66, A58, A616, A628 and the B6194.

Head of Environment at National Highways Ivan Le Fevre said: “This pilot will explore how we can work with farmers and landowners to reduce flood risk on sections of the strategic road network known to be particularly vulnerable to flooding.

“It’s an innovative catchment-based approach to an issue that poses safety risks to road users and one that we normally tackle through engineering. By developing flood alleviation schemes throughout the catchment areas of these three rivers we are tackling the issue at source.

“We’ve been staggered by the phenomenal response to the scheme. We had so many applications, which shows there’s a real appetite for natural solutions and our successful bidders are now playing an important role in reducing flooding in downstream areas.

One of those bidders is Adrian Tantrum, who owns 46 acres of land above the A616 Stocksbridge Bypass at Penistone on the edge of the Peak District in South Yorkshire.

He’s implementing a number of measures which as well as reducing the extent of flooding on the road will also boost biodiversity and lock up carbon.

Most of his land, which is in the River Don catchment, is used for grazing sheep but there’s also 14 acres of irreplaceable ancient woodland as well as a large area of rare ancient hay meadow, which is a designated Site of Special Scientific Interest due to the presence of many rare species including orchids.

Mr Tantrum will be creating some leaky barriers in the Hollins Brook stream that runs through his woods. Further upstream he’ll be restoring three ponds. One will be used for permanent water storage at a fixed level while the other two will be “leaky ponds” with a variable water level, used to store water during periods of heavy rainfall and then release it slowly over several hours.

He’s also going to aerate the soil to reduce compaction and allow the land to store more water as it has never been farmed intensively and has rarely been ploughed.

Finally, Mr Tantrum will be creating new woodland by planting between five and six thousand saplings, mostly native broadleaf species such as hawthorn, rowan, oak and damson. These will enable the land to store more water while at the same time providing valuable biodiversity benefits and carbon sequestration.

Mr Tantrum said: “I’ve always had a keen interest in conservation. I’ve studied zoology and used to be a gamekeeper so I know the importance of managing the land for the benefit of wildlife and the wider environment. I was already planting trees and hedgerows as shelter belts for a new riding arena I’m building so the opportunity to do more to bring greater benefits was too good to miss.

“It all tied in very nicely. I use the A616 a lot and know what it’s like when it floods because the rainwater comes off the hills so fast. Being able to implement all these measures to help alleviate that while also restoring or creating new wildlife habitat is a win-win.”

Speaking during a visit to Mr Tantrum’s scheme, MP for Penistone and Stocksbridge Miriam Cates said: “It’s so encouraging to see a different, nature-based approach to an issue that has wide-reaching consequences on the strategic road network and local communities. This National Highways pilot has the potential to deliver real benefits, not just for public safety, but also for our environment. It will be interesting to see the results.”

Six other projects in the River Don catchment include cross-slope tree planting, hedgerow restoration, soil aeration, the creation of leaky dams and storage ponds and fencing off watercourses to prevent contamination by livestock, providing animals with water troughs instead.

In the River Irwell catchment, Bleakholt Animal Sanctuary will be installing leaky dams, planting trees and hedgerows and aerating compacted soils at its 55-acre site near Edenfield, Lancashire.

Mike Duddy, Senior Project Manager at the Mersey Rivers Trust said: “This is such a brilliant project with multiple benefits. Road users and local communities will see a reduction in the amount of flooding or standing water while the measures being introduced will also provide a boost for local wildlife, giving a wide range of species improved or new habitats in which to flourish. We are delighted to be part of it and look forward to seeing future bids.”

second round of bidding to increase the number of schemes in the pilot will open later this month when just under £250,000 will be available.

The cash has come from National Highways’ Designated Funds programme. It manages four designated funds, allocated by the Government, to deliver benefits above and beyond building, maintaining and operating England’s strategic roads. 

From protecting the environment and enhancing the landscape around roads, to improving safety, reducing congestion, and supporting communities, the aim is to make a positive difference to people’s lives. 


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