Please see the latest information from National Highways about the Saltash Tunnel upgrade

https://nationalhighways.co.uk/our-roads/south-west/a38-saltash-tunnel-technology-upgrade/?fbclid=IwY2xjawJ2zzVleHRuA2FlbQIxMABicmlkETBuSjRPcFFRd0IyeHdMNWd6AR74xjEuAhn4Cx3Q5-ZnQuTA1YY9FkVkktbhBql6YeD9SAj8ZLjw_VT2vz-5Cg_aem_FhxDXOquQe7BYDkxsBtftw