Combatting climate change on Castlefield Viaduct

The view along Castlefield Viaduct

Climate change is the single biggest threat to our precious natural and historic landscapes – including those in urban settings like Castlefield Viaduct. With this in mind, we’re working hard to make sure that this project has environmental sustainability at its heart.

Phase one of this project is limited to a year-long ‘test and learn’ pilot, but it has been designed to produce minimal waste and ensure a net-positive impact on the local environment. The number of temporary elements has been kept to a minimum, and in most cases we’ll be able to remove and reuse these elsewhere if needed.

Sustainable planning

In order to secure planning permission for the project we produced an Environmental Standards Statement, which carefully considered elements such as how to make the project energy efficient and ensuring weather resilience.

We also have plans in place for sustainable waste management, and the development of the viaduct will be carried out using sustainable material wherever possible.

Sustainable solutions on the viaduct

We’ve also integrated sustainable solutions into the daily running of the Castlefield Viaduct project.

We'll harvest rainwater using water-butts on the deck, which will be used for watering the plants. The National Trust has been sourcing plants and compost peat free for over 20 years. All compost on the viaduct is peat free and the plants have all been grown peat free too.

Visitors will be encouraged to use active travel methods such as walking and cycling to access the viaduct, and we’ll monitor the air quality around the site.

Biodiversity is another important factor in the project, which we’re planning to support by creating new wildlife habitats within the ‘sky park’ that sits on the viaduct deck. We’ll be carrying out regular biodiversity monitoring to keep track of the project’s impact in this area.