River Worth Improvement Plan

Current projects

Practical Conservation update January 2024

Project Officer Gareth Muir gives us an update about what the volunteers have been up to last month. 

Tool maintenance

After returning from the Christmas and New Year break, the practical volunteers got stuck into a spot of tool maintenance. Volunteers joined staff at our office in Greengates to sort, clean, sharpen and oil the tools used by the volunteers to carry out practical environmental conservation tasks. Without these tools, we could not carry out the work, so they must be in top condition! Staff and volunteers had the (un)enviable task of going through the Trust's protective equipment (PPE), ensuring it was safe, working and effective. Thankfully, everything was ship shape and Bristol fashion!

Coppicing at Druid's Altar, St Ives, Bingley

Volunteers undertook some coppicing at Druid's Altar hazel coppice on St Ives Estate, Bingley. Coppicing is a traditional form of woodland management with roots going back hundreds if not thousands of years. Using hand tools including; loppers, bowsaws and the iconic billhook, volunteers cut hazel 'stools' to harvest 'rods' of various diameters for a range of uses. The main use was to produce hazel hedging stakes. These stakes were later used on sites within the catchment to lay hedges. In the process of producing these stakes, volunteers realised the perfect length for a stake was an 'Olivia' (our River Conservation Assistant) of 1.5 metres! Over the course of three work days, volunteers coppiced 21 stools and produced 112 stakes, some may say the stakes were...'high'.
Why not visit the National Coppicing association to find out more about this fascinating traditional craft?

National Coppice Federation - National Coppice Federation (ncfed.org.uk)

Two leaves sit in a graphic that divides text

Hedge maintenance at Trench Meadow, Baildon

The volunteers were busy trimming the holly hedgerow at Trench Meadow. A hedgerow, which in the past had been neglected was in need of some tender loving care. The volunteers provided this by cutting back the encroaching greenery onto the footpath, allowing footpath users to path through unmolested by errant pickily leaves! The volunteers also took the opportunity to remove encroaching bramble on the meadow, thus preventing it's natural succession into woodland. Trench Meadow is a Site of Special Scientific interest (SSSI) containing a variety of flora, which the Trust aims to safeguard for the future.
To find out about Trench Meadow, why not visit this interesting blog post by 'The Nature Guy' who contacted the Trust in summer 2023:

Meet your local SSSI (natureguy.blog)

Hedge laying at Ryeloaf Meadows, Bingley

Hedge-laying continues to be a firm favourite with the Trust's practical conservation volunteers. This month volunteers worked had to lay a predominantly hazel hedge at Ryeloaf Meadows, Bingley; a fantastically untouched site beneath the Bingley Relief Road. Accessed via Dowley Gap Waste centre, the site is managed by Bradford Council's Countryside and Rights of Way team with the Aire Rivers Trust carrying out environmental conservation tasks onsite on their behalf. The traditional countryside management craft of hedge laying is enjoying some what of a resurgence of late and as an organisation the Trust is keen to keep these traditional skills alive and use them to improve habitat in the catchment and beyond. If you'd like to find out more about hedge laying, why not visit the National Hedge laying Society website:

Home Page (hedgelaying.org.uk)

Willow Clearance at Ryeloaf Meadows, Bingley

Willow clearance on the riverside at Ryeloaf Meadows continues, with volunteers removing dense patches of willow near the water's edge. Large stands of willow deflect the flow of the river away from the site, which acts as a flood water overflow. The cut willow is stacked into dense brash piles, which will in time become a new habitat for invertebrates and potentially laying up spots for male otters in the summertime. The composition of the woodland at Ryeloaf Meadow is 'wet' woodland (predominantly common alder and crack willow), which is an under represented habitat in the Bradford area. Woodland management often includes thinning tree numbers and producing deadwood, so that multiple layers of habitat are present with a 'mosaic' of canopy, understory, shrub and herb layer.

Two leaves sit in a graphic that divides text

January was a busy month with a variety of tasks. The 'nature' (pardon the pun) of practical conservation dictates that the tasks performed by volunteers vary greatly. Moving ahead into the end of winter the volunteers will be continuing hedge laying, tree planting and gearing up to the river clean ups, once the flood waters have subsided.

Two leaves sit in a graphic that divides text

How To Get Involved

Footpath works pave the way for better becks in Bradford

Sometimes the path to healthier streams and rivers lies alongside and not in the water. Local environmental charity, the Aire Rivers Trust has been hard at work improving a Bradford footpath to reduce soil running into the stream - boosting water quality and encouraging wildlife to flourish.

The work is the first ecological improvements brought about by “Better Becks,” an exciting partnership between the Environment Agency, Yorkshire Wildlife Trust, the Wild Trout Trust and the Aire Rivers Trust. Through the project experts from the trusts walked over 60 kilometres of streams looking for ways landowners could make changes to the way streamside land in Bradford is managed to produce improvements to water quality.

“We’re delighted another important part of the Better Becks partnership project is underway, boosting water quality and enhancing habitats so that wildlife can thrive. We’re looking forward to working further with our partners in the coming months to turn opportunities identified during this project into ecological improvements in watercourses in and around Bradford.”

Ineke Jackson, Environment Agency Project Manager

Locating water quality issues

The streamside path is Shipley Glen. A popular area with local dog walkers. Loadpit Beck flows down a narrow valley in Shipley Glen through the village of Eldwick and into the River Aire near Saltaire. It is named after the nearby small Late Bronze Age iron ore (or lode) workings which once forged the axes used to clear the land for agriculture. The project noted with concern that the increasing number of visitors since 2020 had caused a footpath that crossed the stream to widen and erode. Soil from the footpath was washed into the stream by rain and the many dogs enjoyed its cool water.

Creating volunteer-led solutions

Volunteers from the Aire Rivers Trust have built new walls to reinforce the footpath and drains to keep water from running over it. Over the past weeks, they have moved almost 70 tonnes of gravel and cobbles to resurface the footpath and create a mud-free area for dogs to wade to avoid the mud being disturbed. The work aims to reduce the amount of soil washed into the stream as it brings nutrients that reduce water quality and smothers the gravel where fish will lay their eggs. They have been helped in their work by members of Bradford Metropolitan Council’s Countryside and Rights of Way Team.

With the support of our volunteers were improving water quality in Shipley Glen and footpaths for walkers.

“Our volunteers have greatly enjoyed the challenge the work provides. It's good fun but also makes a real difference to the health of our rivers. This project is a great example of organisations coming together to achieve the shared aim of having a healthy river system full of life. We hope walkers will enjoy the new path and maybe catch a glimpse of wildlife, like kingfishers, we expect to thrive with cleaner water.”

Simon Watts, Operations Manager with the Aire Rivers Trust
Changes to our riverbank that benefit people and wildlife.

You can read a little more about Better Becks here

River Aire Care

Plastics in our rivers

Plastic pollution in rivers is a major environmental problem that affects not only the health of rivers and the ecosystems they support, but also the health and well-being of humans. In this blog, we'll explore some of the causes of plastic pollution in rivers, the impacts it has on the environment and human health, and what we can do to reduce it.
In a subsequent blog, we will look specifically at microplastics.

Slightly ironic how this trash collector (in Baltimore, US) creates a fish tail as it works...

One of the main causes of plastic pollution in rivers is the improper disposal of plastic waste. Many people simply toss their plastic trash into the streets or into nearby waterways, where it can be carried by stormwater runoff into rivers. In addition, plastic that is not properly recycled can also end up in rivers through the waste management process.

The impacts of plastic pollution in rivers are significant and wide-reaching. For one, plastic in rivers can harm and kill wildlife that mistake it for food or become entangled in it. Fish, birds, and other animals can ingest plastic particles, which can lead to malnutrition, organ damage, and even death. In addition, plastic in rivers can also absorb toxins from the water, which can be harmful to both humans and animals when ingested.

Plastic pollution in rivers can also have economic consequences. For example, plastic pollution can damage fishing gear and boats, leading to losses for fishing and tourism industries. In addition, plastic pollution can also affect water quality, making it unfit for human consumption and recreation.

What can we do about the problem?
So, what can we do to reduce plastic pollution in rivers? One effective strategy is to properly dispose of plastic waste and ensure that it is properly recycled. This includes properly disposing of plastic items such as bottles, bags, and packaging in designated recycling bins and participating in community recycling programs.

Another important strategy is to reduce our overall consumption of single-use plastic items, such as straws and plastic water bottles. By using reusable items instead, we can significantly reduce the amount of plastic waste that ends up in our rivers and other waterways.

We can also support businesses and organizations that are working to reduce plastic pollution in rivers. For example, we can choose to patronize companies that use environmentally friendly packaging and support initiatives that work to clean up plastic pollution in rivers.

Finally, it's important to educate others about the issue of plastic pollution in rivers and the steps we can all take to reduce it. By raising awareness about the problem and the actions we can take to address it, we can create a ripple effect that will help to protect our rivers and the ecosystems they support for generations to come.

In conclusion, plastic pollution in rivers is a serious environmental issue that has wide-reaching impacts on both the environment and human health. By properly disposing of plastic waste, reducing our consumption of single-use plastic items, supporting businesses and organizations that are working to reduce plastic pollution, and educating others about the issue, we can all play a role in protecting our rivers and the ecosystems they support.

If you would like to dig further into the plastics in our environment, then Earthwatch have some excellent online resources.


The Wild Trout Trust contributes to several Aire Rivers Trust projects and initiatives, such as the Better Becks programme. It helps that Prof Jonny Grey, the WTT Research & Conservation Officer, is an Airedale resident and has a good working knowledge of his local system. One of his projects (TROUT), independent from ART but with similar aspirations and goals as the Better Becks project, is producing some very encouraging data.

TROUT – or Tackling Resilience on Underperforming Tributaries – is a 5-year project funded under the Yorkshire Water Biodiversity Enhancement programme. It aims to do what it says on the tin by improving habitat both instream and within the riparian zone and boosting trout fry numbers as a result. The WTT use brown trout as a sentinel species – if there is a healthy, wild, sustainable population of trout in a stream or river, it suggests that there is sufficient water of sufficient quality flowing through a mosaic of sufficient quality habitat to fulfil the various requirements of the trout life-cycle. And being in the middle of the food chain, lots of trout suggests plenty of food (mostly riverine and land-based invertebrates such as mayflies, shrimp & worms) and also plenty of food for predators of trout (otter & heron etc).

Young of year trout fry ~70mm in length

What form might habitat improvement take? Because I have been focussing mostly on headwater tributaries to boost spawning, it generally involves methods to sort and keep gravel free from silt so the trout can lay eggs and they’ll incubate safely. Adding wood, wiggling channels, providing cover and shade, and preventing fine sediment from washing in are all important, as is ensuring adult fish have free access in and out!

TROUT involves 3 sites in each of the Aire, Nidd & Wharfe catchments and I measure success against a number of control becks. I will focus on the Aire outcomes here, but it’s useful to place these in the wider context of other Dales rivers – see my summary of the overall project on the WTT pages, here.

One site is the goit in Hirst Woods at Seven-Arches and it is slightly atypical to the other sites in the project in that the focus is for ‘coarse’ species rather than trout per se. I posted a blog about early developments last year, here. In a nutshell, the work resulted in a doubling in the species count and increased the abundance of fish from 10s to 1000s! Build it and they will come…..

Haw Beck flows between Embsay and Skipton behind the Skipton Quarry and from there into Eller Beck. Tarmac Ltd and another local landowner have allowed us to exclude livestock, plant trees, introduce wood and generally diversify the habitat, as well as remove a redundant low-head weir. Indeed, ART volunteers helped me with the trees. In 2 years, we have boosted the trout fry numbers by 10x.

Pinning woody deflectors into the upper reaches of Haw Beck

The third site, Flasby Beck, flows into Eshton Beck and ultimately into the Aire below Gargrave. It just needed a good dose of wood, big wood, to kick the channel about a bit and provide refugia. So it wasn’t terrible, to begin with, but it was underperforming! There are now 6x the number of trout fry able to reside at the site.

Volunteers measuring trout fry next to a deposition bar created by introduced wood still visible in the bankside herbage

Relatively simple interventions give rise to big wins over a relatively short time frame. TROUT runs for 2 more years and I will be monitoring until the end to see if those population boosts are sustainable. More information is available, here.

Explore the River with us

An old piece that finds a new home as we reorganise the website but still hugely enjoyable. Join us as we take...

How Fish Passes Work

As we come to the end of Developing the Natural Aire, SImon Watts explains why building fish passes matters.

All fish need to move to feed, breed and shelter. Even fish who spend their whole lives in the river can travel considerable distances looking for the ideal spot. Barbel have home ranges up to fifteen miles. Many freshwater fish migrate much, much further. For migratory species, like Atlantic salmon and the European eel, access to the sea is essential. The Industrial Revolution has left us with a fragmented river. Weirs built to harness the power of water for mills, factories and for navigation, block the way. Fish trapped in their sections are vulnerable to pollution or predation. And species like Atlantic salmon trying to return to our cleaner rivers cannot reach spawning ground in the shallow headwaters.

Why Do We Need Them

Whilst trout and Atlantic salmon can sometimes be seen leaping up waterfalls, weirs present a unique challenge. They are often long and steep. Their surface is smooth with little variation in the flow of water. The deep pools found at the base of waterfalls which fish can leap from are replaced by shallow aprons of concrete and stone. Many coarse fish species cannot jump obstacles.
The Aire Rivers Trust works with partners such as the Environment Agency and landowners to overcome these obstacles. The ideal solution is weir removal which restores natural river habitat (returning the artificial ponded section upstream back to a more natural system). But in some locations this proves impossible. Weirs form part of the urban fabric of our landscape. Some are valued for their heritage or for their amenity value. Buildings are built close to them and complicate their removal.

How Do They Work

Yorkshire Water explains why we need them and how fish passes work

Mid construction footage of the new fish pass at Kirkstall Abbey Weir as part of our Developing the Natural Aire project

An explanation of how an eel pass works from a Canal and Rivers Trust project similar to our Developing the Natural Aire

Where weirs cannot be removed, the solution is engineering. Records show rough fishways built in France during the 1600s. Here bundles of branches were used to create steps in steep channels to bypass obstructions. Engineered fish pass design has come a long way since the first one was patented in 1837 in New Brunswick, Canada. All designs seek to make weirs passable to fish. The majority of modern fish passes on the River Aire are Larinier Passes. Metal baffles in the base of them slow the flow over the weir that fish can swim or leap through.

The reconnection of 60km of habitat in the River Aire by the Developing the Natural Aire project will allow the return of Atlantic salmon, sea trout and other migratory fish. Monitoring conducted alongside the project has recorded a brown trout travelling from Armley Mills to Cross Flatts in Bingley (and most likely beyond) in a huge 80-kilometre journey to search for new areas to feed, breed and shelter in. This journey would have been impossible before Developing the Natural Aire as weirs like Kirkstall Abbey were completely impassible to fish.