|Distance:||1 miles (1.6 km)|
|Route outline (key)|
The A6099 is a short single-carriageway route that doesn't do very much other than provide a short cut between the A666 and the A58 in the Bolton suburb of Halliwell. It could probably get away with being a B-road; indeed it used to be unclassified.
It starts off at the Kay Street gyratory on the A66, where the B6206 and B6207 also congregate. From here, the route heads north-westwards to end at a signalised crossroads on the A58 Bolton Ring Road.