It means that drivers can continue to use the roads without fear of prosecution.
Residents in, and around Lubbecke Way, say that for two years now they have put up with the problems which have included noise, pollution and damaged vehicles.
The difficulties started when the council switched the main tip route, which also services Louds Mill industrial estate, from St George’s Road to Lubbecke Way.
Residents, supported by Dorchester town council, campaigned for HGV restrictions which eventually became law in in November 2019.
Residents and local councillors say that despite this there are still no signs banning heavy lorries from St George’s Road, or the other roads which come off it, including Eddison Avenue and Long Bridge Way.