A one-way system will be in operation from Townhead Street towards Glaisnock Street in Cumnock from tomorrow.
Part of the road has been shut off to cars since October 12 because of a collapsed wall.
All businesses in the area remain open, despite the disruption.
Drivers will still only have access to Townhead Street via Lugar Street, and not directly from Glaisnock Street.
READ MORE: Glaisnock Street closure continues into third week as council gives update
However, from tomorrow, drivers will be able to drive from Townhead Street up to Glaisnock Street, without the need for a diversion via Barrhill Road.
There has been no official words from East Ayrshire Council on when the repairs will be complete, but some local shop owners say they have been told that it will be the end of January before it fully reopens.
An East Ayrshire Council spokesperson said: "Earlier this month officers from East Ayrshire Council's building standards, facilities and property management (FPM) and the Ayrshire Roads Alliance met on site with consulting structural engineers to further assess the situation.
"The subsequent structural assessment suggested temporary bracing, which has allowed the road to partially reopen.
"Officers from building standards, FPM and the contractor will progress further actions to continue to ensure that public safety is maintained.
"The council will work with the owner of the building to address a longer term repair."
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