Parkside has been a potential development since the colliery shut and the famous towers were demolished TRAFFIC in Winwick is already at 'breaking point' and redevelopment of Parkside should only begin at the same time as a new link road. These concerns were shared by Labour councillor Cathy Mitchell during the public inquiry into plans to regenerate the former colliery in Newton-le-Willows. Proposals to redevelop former colliery, which was shut in 1993, were originally submitted in January 2018 by Parkside Regeneration LLP, a joint venture between developer Langtree and St Helens Borough Council. St Helens Borough Council granted outline planning permission in December 2019, while also giving the green light for the Parkside Link Road project, which is seen as a key element to unlocking the potential of the site.