These are issued by Norfolk County Council and listed on the Highways part of their website as Public Information Notices here https://www.norfolk.gov.uk/roads-and-transport/roads/traffic-orders-notices-and-restrictions/public-information-notices
Notices with maps are posted up in the Parish notice boards for any closures affecting Burston, Shimpling, Mill Green and Audley End.
For other road information around the UK there is a useful map here Roadworks, diversions and accidents on the one.network web site; zoom in to Norfolk for more local details.
Anglia Water are updating the pipe work between Burston, Audley End and Scole during September to November 2019 – map and details here STRO2891-Burston-Scole
If you travel on the A140 there will be weekend closures at Hempnall for the new roundabout – details here https://www.norfolk.gov.uk/roads-and-transport/major-projects-and-improvement-plans/norwich/city-centre-improvements/improvement-projects/future/a140-hempnall-crossroads-improvement-scheme
There will be delays during the weekend of 19th to 21st October for inspections and work at both Burston Road and Audley End railway crossings.