The latest in a series of ground investigations for the A9 Dualling programme are to get underway next week.
The work is set to start on Monday 22 October and will focus on the 16km stretch between Crubenmore and Kincraig.
It was annouced that Fugro Geoservices had been awarded the £2.7M ground investigation contract earlier this month.
A Transport Scotland spokesperson said: “With the first scheme open to traffic and construction work to commence in the coming months on the second scheme, design work on the A9 Dualling programme continues at pace with eight of the nine remaining dualling schemes being designed now at draft Order stage.
“As part of the ongoing design work we need to carry out further ground investigations to get important information on the existing ground conditions on the sections to be dualled.
“The latest of these vital investigations starting next Monday are for the section between Crubenmore and Kincraig.
“We apologise for any inconvenience these works will cause and would thank road users and local communities in advance for their patience during the works. The contractor will closely monitor the operation of the traffic management measures to ensure that delays are kept to a minimum.”
The work is expected to last around 12 weeks.