Hebden Bridge Town Hall Rain Garden Planters – Launch Party Friday 29th June

FRIDAY 29TH JUNE 15:30 – 18:30

Hebden Bridge Town Hall Café / Courtyard

What’s happening?
Planters will be opened by Mayor of Hebden Royd, Cllr Carol Stow

Entertainment including:
Calder Valley Youth Theatre 4pm // Hebden Bridge Junior Band 5pm

Friendly faces will answer your questions, and free information will be available about how the planters help to slow the flow of flood water, the importance of riverside biodiversity, and how you can help by building your own.
FREE light refreshments will be available.

The Town Hall Courtyard planters project is a collaborative community venture, funded by a grant from the Postcode Local Trust. It is part of a wider initiative to help us all understand how urban sustainable drainage (SuDS) can play a part in flood alleviation.

For more detail on how to Slow The Flow: At Home / At Work / At School / Public Spaces click here

Feel free to download, print and share the flyer here.

A short course for young people on local natural flood management – Week commencing 18th June

Volunteering in Hardcastle Cargs

18th May 2018


Slow the Flow Calderdale have been awarded a grant from the Community Foundation for Calderdale to execute a youth project focusing around our river level monitoring activities. As a pilot to the project, Slow The Flow are holding a short course on river flooding and Natural Flood Management which will also cover river level monitoring techniques which we are proposing to roll out across the Upper Calder catchment.

The course is suitable for 15 to 19 year olds, those who are either currently studying or interested in studying Geography, Geology/Earth science, Environmental Science or Civil Engineering at degree level and for anyone else who is interested in this ever increasingly popular area of Natural Flood Management.

The short course will take place over three days starting on Monday 18 June. It will include some classroom work, a field trip along Colden Water followed by practical experience building leaky woody dams in Hardcastle Crags. A shorter briefing of the subject material may be arranged for Saturday 23 June for those unable to attend during the week.

The purpose of the field trip is to determine the best locations to install river level monitors and the students will be actively engaged in this process. Once the monitors are installed around the catchment, these will join those already available for viewing by the general public in real time over the internet, available here

There is a technical flavour to the proposed roll-out of the course with the opportunity to build river monitors use Raspberry Pi computers and “LoRaWAN” to transfer the data using the “Internet of Things”. This is intended to broaden the appeal of associated learning opportunities to those looking to study Electronics/Electrical Engineering, the Internet of Things or IT and how these subjects fit around the natural environment.

These river level monitors will serve two purposes. Firstly, they allow the public to view the river state at times of heavy rainfall and secondly they will allow Slow The Flow to measure and demonstrate the efficacy of the natural flood management interventions that are proposed and currently being implemented in the Upper Calder Valley.

Emma Woods-Bolger Assistant Director of the Community Foundation for Calderdale said:

“Big Lottery Fund and Department of Culture, Media & Sport are each investing £20 million seed funding over four years to create the #iwill fund. Locally the Community Foundation for Calderdale, are acting as match funders and are awarding grants on behalf of the #iwill fund.

The #iwill campaign aims to increase participation in youth social action by 50% by 2020. This includes activities such as campaigning, fundraising and volunteering, all of which create a double-benefit – to communities and young people themselves.

The #iwill campaign aims to increase participation in youth social action by 50% by 2020. This includes activities such as campaigning, fundraising and volunteering, all of which create a double-benefit – to communities and young people themselves”.

Stuart Bradshaw from Slow The Flow Calderdale said:

“Here is an opportunity for young people to learn more about causes of devastating floods and how to build resilience into their communities. We are really excited to be able to facilitate this course for young people in the Calder Valley and to see the next generation of scientists & engineers develop their skills in Natural Flood Management”

Cllr Barry Collins, Calderdale Council’s Cabinet Member for Regeneration and Economic Development, said:

“This is a great opportunity for young people to learn about this fast-growing area of flood risk management and the amazing work that Slow the Flow is doing in the Calder Valley.

The Calderdale Flood Action Plan recognises the many benefits of using natural flood management alongside other methods such as engineered flood defences and we are excited to see Slow the Flow pioneering the use of data to develop NFM knowledge and improve understanding of its impacts.”

If you are a student studying for A Levels or have a general interest in the Environment or design and technology or you work with students who are studying these subjects and would like to get involved, please email secretary@slowtheflow.net to reserve your place.

Places are completely free thanks to the grant from the Community Foundation for Calderdale but spaces are limited so applications will be received on a first come, first served basis.

For more information on Slow The Flow Calderdale, contact us here 



A generic Privacy Notice, explaining GDPR and its implications, has been created as follows.  

From 25th May 2018, Slow The Flow Calderdale will be complying with the General Data Protection Regulation to ensure that the personal data you have supplied us with remains secure and is handled properly.

As technology develops and data sharing becomes more common, data protection is becoming more and more important. That’s why new legislation known as GDPR (General Data Protection Regulation) is being enforced on the 25th May. This will replace the existing Data Protection Act.

We want to ensure that you are fully aware of the changes that GDPR will bring, and to update you regarding how Slow The Flow Calderdale will use any data you provide us with.

What is GDPR and why do we need it?

There are two key reasons why GDPR is being introduced – to bring all EU member states under one common regulation, and to update regulations to reflect our new digital age.

In the UK, companies are still following the 1998 Data Protection Act to ensure the safety of people’s data. But technology and data sharing has developed a lot since 1998. This means that the current regulation may not be entirely suitable for the needs of consumers and the types of technology we’re seeing today. GDPR will replace the Data Protection Act to better protect our data from breaches and hacks.

What data does it protect?

GDPR aims to protect any personal data a company holds about you – including your name, address, email address and images.

How will it affect UK businesses?

Essentially, GDPR will affect everyone in all 28 EU member states, from businesses big and small, to customers and consumers. It will still apply after Brexit.

When it comes to implementing GDPR, the biggest changes will be seen by businesses rather than consumers, since they’re the ones who will have to adjust the way they handle data to align with the new legislation.

How will GDPR affect me?

While businesses will have to make changes to their data policies in preparation for the new regulations, consumers don’t have to do anything in particular to prepare.

However, GDPR also gives you a number of ‘rights’ when it comes to your data, including:

The right to be informed – you have a right to know how your data will be used by a company.

The right to access your personal data – you can ask any company to share with you the data they have about you!

The right to rectification – this just means you can update your data if it’s inaccurate or if something is missing.

The right to erasure – this means that you have the right to request that a company deletes any personal data they have about you. There are some exceptions, for example, some information can be held by employers and ex-employers for legal reasons.

The right to restrict processing – if you think there’s something wrong with the data being held about you, or you aren’t sure a company is complying to rules, you can restrict any further use of your data until the problem is resolved.

The right to data portability – this means that if you ask, companies will have to share your data with you in a way that can be read digitally – such as a pdf.

The right to object – you can object to the ways your data is being used. This should make it easier to avoid unwanted marketing communications and spam from third parties.

Consent – Sometimes we need your consent to use your personal information (for example, to send you e mails about Slow The Flow Calderdale developments and events). We won’t always need consent to use personal information – for example if we need it to meet regulatory requirements or perform a contract with you such as becoming a member. Where you have given consent, you have the right to withdraw at any time.

Your rights

You have the right to object to how we process your personal information. You also have the right to access, correct, sometimes delete and restrict the personal information we use. In addition, you have a right to complain to us and to the data protection regulator.

If you have any queries on GDPR and how data will be handled, please don’t hesitate to contact us by e-mail at secretary@slowtheflow.net

Annual General Meeting and Film Showing of “High Water Common Ground” – 12th April

The Annual General Meeting and film showing of “High Water Common Ground” on Thursday 12th April at 7.00pm at The Waterfront Hall, Hebden Bridge Town Hall, Hebden Bridge. Directions here.

On Thursday 12th April, Slow The Flow: Calderdale will be holding its first public meeting of 2018 which will consist of its AGM followed by a showing of “High Water Common Ground”, a film about flooding and what we can do now to reduce the risk of flooding here and throughout the UK… made by filmmaker Andy Clark.

To book your FREE tickets, follow the link here

Slow The Flow: Calderdale have had an amazing year. Well over 100 volunteers have installed nearly 150 leaky woody dams at Hardcastle Crags and have also raised over £15,000 including donations from the Yorkshire Tough Mudder event in July.

Slow The Flow: Calderdale have also won 2 major awards:

The SWIG Award for the “Best Project in 2017” and the Calderdale Community Foundation “Great & Green” Award.

Slow The Flow: Calderdale are currently in negotiation to secure further funding to develop more sites in Calderdale to install leaky woody dams and other attenuation schemes.

Please come and help Slow The Flow: Calderdale celebrate their achievements and also see an exclusive screening of the amazing film “High Water Common Ground”.


7.00 pm – Welcomes and introductions. Financial report and election of officers.

7.30 pm – Overview of Slow The Flow projects carried out in 2017 and plans & projects for 2018.

8.00 pm – Showing of film “High Water Common Ground” introduced by film maker Mr. Andy Clark. “High Water Common Ground” was filmed over two years and features inspirational speakers with a national perspective! More info here

9.15 pm – Questions & AOB.

9.30 pm – Finish and retire to the pub.

Refreshments will be provided. We look forward to seeing you at 7pm on Thursday 12th April at Hebden Bridge Town Hall.

Please register here to reserve your FREE place.

Award winners!

We are very proud to announce that we have won two awards

We are a 2017 winner of the  the Sustainable Water Industry Group Awards for our Sustainable Drainage System project. Huge congratulations is due to our own Amanda McDermott, who has developed this work.

Community Foundation Great & Green Award 2017 WINNERS 

End of 2017 update

After nearly a year working with The National Trust at Hardcastle Crags, we have now built 117 leaky woody dams using over 100 volunteers. Our volunteers have worked incredibly hard in 2017 and we simply would not have achieved what we have without all this incredible help. A massive Thank you if you have helped in any way on this project.

Early indications are that these leaky woody dams in Hardcastle Crags are  working to slow the flow and reducing the impact of flood water finding its way down the Calder Valley. Formal results of how much water has been slowed will be published in the New Year!

Certain in the knowledge that what we are doing works to reduce the impact of amount of water finding its way to our towns and villages, we will continue into 2018. However, we still need volunteers to continue with this important work. If you can help in any way whatsoever, please do get in touch or come to one of our volunteer days at Hardcastle Crags.

Click here for volunteer days for 2018.

There is still lots to do, not just in Hardcastle Crags, but across the Calder Valley and we are working with our partners to identify other areas which would benefit from the installation of these leaky dams. If you know of such an area, please do get in touch so we can arrange a survey and see how we can Slow The Flow near you.

After over a year in the planning, and with the recent grant made from The Calder Flood Partnership to The National Trust for work at Hardcastle Crags to ‘Slow The Flow’, volunteers have started work in the gullies leading into the river which flows into the River Calder.

New equipment has been bought, natural materials have been sourced and managed and volunteers have been recruited and trained to build leaky dams and for gully stuffing throughout the Crags.

To date, around 100 new volunteers have worked in this beautiful part of the Calder Valley and significant progress has been made in a number of gullies leading into the main channel in the Crags.

Volunteers ranging in age from 10 to over 70 have taken part. Work ranges from sawing timber, trimming brush, digging, and moving trunks into place to form leaky dams and to stuff gullies to encourage rain water onto the banks during heavy rainfall. The channels still work in normal flow but to try and reduce the amount of water making it into the main channels, the gully stuffing and leaky dams force the rain water over the banks and onto the slops.

This programme will continue throughout the summer in the Crags so if you want to get involved, contact us here to book your place. We usually start at 9.30 am and finish by lunchtime, currently over weekends.

Work parties are also being arranged during the week so if your company or organisation would like to get involved, please contact is here register with us. We already have 3 large organisations who will be working with us throughout the summer.

You will need to fairly fit although you will not be expected to carry heavy weights or work beyond your own limitations.  All we ask is that you have a desire to help ‘Slow The Flow’. There are a range of tasks suitable for all ages as we have already demonstrated with our amazing volunteers who have helped to date.

IMPORTANT INFORMATION ON CHILDREN WHO WANT TO VOLUNTEER  –  children under 18 are VERY welcome to volunteer but they must be supervised by you at all times. Please be aware that there are chain saws in use (solely by fully trained personnel) and dangers associated with: mechanical and manual movement of very heavy logs; unsupervised saws and other blades laid on the ground; and axes and saws in full swing. It is possible to work in areas where some of these dangers are not present but they may be adjacent to areas where they are present.