Cabinet Secretary for Infrastructure, Investment and Cities Keith Brown will outline plans for a new junction giving access to the Highland village.
A high definition video of the proposed junction will be made available to the public.
Mr Brown has described the dualling project as “mammoth”.
He will be at the village hall to see at first hand the early work to develop options for access and junctions for the A9 at Dalwhinnie, including high definition fly-throughs.
There are 15 options for the stretch of road.
Mr Brown will also be launching the first edition of an A9 Dualling newsletter that will be published on a regular basis and sent to stakeholders and those with an interest in the dualling programme.
Plans to make the A9 a dual carriageway on all remaining single carriageway sections between Perth and Inverness are ahead of schedule with new sections of the road set to be ready for dualling by 2017.
The work is the biggest transport project undertaken so far in Scotland and will cost £3bn by its completion in 2025.
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