Motorists will face months of delays along a main route – with roadworks expected to run until spring.
Drivers will be hit by disruption as resurfacing works are carried out along Wolverhampton Road in Pelsall. Kerbs and pavements will also be replaced.
The £700,000 project aims to improve the busy pothole-ridden route, which is the main link between Brownhills and Bloxwich through Pelsall.
Temporary traffic lights and overnight road closures will be in place.
Pipes were replaced by South Staffs Water around the Fingerpost junction over the summer. Walsall Council was beginning the road improvements today.
Pelsall councillor Garry Perry said there would be long-term benefits when the work was finished.