The A490 is now open to all traffic under two-way traffic lights following a landslide near Guilsfield at the end of September.
The road closed when a substantial amount of material including soil, stone and trees covered the road near the Valley View Holiday Park, Pentre'r Bierdd, on September 30.
These traffic lights will remain in place whilst works to stabilise the upper level of the landslide are undertaken by the landowner.
Powys County Council engineers will continue to monitor the site for further movement whilst these works are undertaken.
Once the landowner has completed their works and it is confirmed the slope is stable the traffic lights will be taken down.
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