The aggregates division of natural stone producer, Cumbria-based Burlington, provided a total of 234,053 tonnes of crushed infill stone and over 8,400 tonnes of weathered walling stone for a new bypass in the Lake District National Park.
The 3.8km bypass is situated on the popular A590 trunk road that links communities in South Cumbria with the main M6 motorway. Ensuring the lowest environmental impact possible, the Burlington materials were sourced within close proximity to the new bypass, while the company’s infill and walling stone is created from quarried material that previously would have been considered a waste product.
The Burlington infill stone was used to replace some 25,000 cubic metres of peat to create a solid foundation on which the new A590 bypass has been built. Translating into 12,000 lorry loads, its peak some fifteen 40-tonne dump trucks were transporting up to 6,000 cubic metres of material along the site each day.
Additionally, the Burlington weathered walling stone was used to create a number of sections of dry stone walling that create the site boundary and for underpasses on the bypass at Oak Head, Barrow’s Green and Cartmel Lane. Some eight kilometres of the Burlington dry stone walls also help define the bypass while remaining sympathetic to the park.
Burlington joint managing director Malcolm Hatch said: “We are obviously delighted to have supplied our infill and walling stone for what is an excellent and valuable civil engineering project within our native Cumbria. It is particularly pleasing to see what used to be a waste product of our quarrying operation being used in such a beneficial and environmentally-friendly way.”