The prior information notice (PIN) for the construction contract for the 9.5km section between Luncarty to Pass of Birnam was published yesterday and the contract notice is expected to follow in the next few weeks.
Design work also continues across the rest of the route between Perth and Inverness with a series of public exhibitions for consultation on preferred routes for the 24km Dalraddy to Slochd and the 16km Crubenmore to Kincraig schemes.
Transport Scotland is also looking for contractors to carry out a series of advanced works across the entire route in preparation for future construction.
Economy secretary Keith Brown said: “The range of activity and work underway to deliver the A9 dualling programme is tangible evidence of our commitment to upgrade this important road linking central Scotland to the Highlands and Islands.
“We remain on schedule to open the 7.5km stretch of upgraded road between Kincraig and Dalraddy this summer, bringing huge benefits to motorists using the A9.
“We are making significant strides and remain on target to deliver our ambitious A9 dualling programme by 2025.”
Details of the A9 dualling programme can be found at: www.transport.gov.scot/project/a9-dualling-perth-inverness