The B6536 Manchester Road in Bolton was formerly a part of the A666.
The road starts at a gyratory on the Bolton ring road, where traffic heading west along the A6058 Lower Bridgeman Street reaches Manchester Road at traffic lights. To the north that road is numbered A579 or A575 whilst our road heads south. We follow a wide single-carriageway road through a retail park and cross several sets of traffic lights. A short line of houses on the right leads to another set of lights, from where a spur of the B6536 heads left to reach the A666 at a spread-out GSJ; the southbound onslip is missing. The bridge the northbound onslip uses is wider than it needs to be; this was built to take the southern half of the Bolton ring road (only the northern half was built and is now the A58).
Returning to the mainline we continue along Manchester Road and enter an industrial estate which lasts until the road splits at traffic lights. The two carriageways separate and merge into the north-facing slip roads off the A666 which become the A575 and so the B6536 ends. Southbound B6536 traffic may also join the A666 here as it was not able to at the GSJ in the previous paragraph.
