Transport Scotland has confirmed that ground investigation is set to start on two further sections of the A9 from Monday next week.
The work will focus on the southern stretch between Tay Crossing and Ballinluig and on the northern section between Tomatin and Moy.
Both contracts are expected to take eight weeks to complete on site with up to a further 18 weeks of testing and reporting.
Soil Engineering Geoservices has confirmed that it undertaking the Tomatin to Moy work while Transport Scotland has said that Fugro Geoservices will undertake the Tay Crossing and Ballinluig work as a supplementary task order under another A9 contract awarded in August last year.
According to Soil Engineering, the Tomatin to Moy investigation will include exploratory boreholes in soil and rock, trial pitting, in situ testing, sampling, installation of instrumentation, laboratory geotechnical and geoenvironmental testing. The contract, which covers almost 10km of the A9 upgrade route, has been valued at £1.4M.
The ground investigation being undertaken by Fugro between Tay Crossing and Ballinluig has been valued at £1.3M.
A spokesperson for Transport Scotland said: “This further ground investigation work is needed to get important information on the existing ground conditions in the vicinity of the A9 carriageway for two stretches of the route to be dualled between Tay Crossing and Ballinluig and further north between Tomatin and Moy.
“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.”