Cleaners have completed a blitz of laybys along the whole of the A299 Thanet Way within the Canterbury district.
It follows work done at the A2 and is a response to mounting concern about the state of the laybys.
A dedicated nine-man crew from the Canterbury City Council’s cleaning contractor Serco carried out the work.
They worked on stretches of just over two miles a day over a two-week period in which they cleared around a ton of rubbish per day.
It cost the council £20,000 to do the work. Much of the rubbish left by roads is blamed on long distance lorry drivers and often includes bottles of urine.
Cllr Neil Baker, the authority’s communities chairman, said: “This project and the one on the A2 have have cost taxpayers a total of £40,000, but it’s money we need not have spent if people had just taken their rubbish home with them instead of chucking it out of the window.
“There are far better things for taxpayers’ money to be spent on, but the rubbish was there and it needed cleaning, so that’s what we’ve had to do.
“The patience of members of the public who have been concerned about it has been appreciated.
“They have understood that you can’t just come along and close off sections of key roads at the drop of a hat.
“It has to properly planned and with full regard to the safety of the crews.
“We will continue to work closely with Highways England for the A2 and Kent County Council for the A299 on how litter can be kept to a minimum and how future clean-ups can take place at as little cost to the taxpayer as possible.”