Transport Scotland is set to award a £3.4M ground investigation contract to Soil Engineering Geoservices for the upgrade of the A82.
The contract for the Tarbet to Inverarnan will be formally awarded subject to completion of the mandatory standstill period.
Work on the 18 week contract is programmed to start in March and will provide detailed information for the road upgrade which aims to reduce congestion and improve traffic flows on the A82.
The route is located within the Loch Lomond and The Trossachs National Park and is a complex site, which is physically constrained, with the loch on one side, and the hillside and railway on the other.
“We remain committed to upgrading the A82 between Tarbet and Inverarnan,” said Scottish transport minister Humza Yousaf.
“These ground investigations due to get underway next month will provide the detailed information needed to help inform the development and assessment of the scheme’s design.
“We need to ensure that any future upgrade fits within the area’s outstanding landscape and environment and maintains the renowned beauty of the Loch Lomond and Trossachs National Park.
“The work we are doing along this vital route that connects the Highlands and Islands with the central belt will lead to improved road safety and journey time reliability and meet the needs of business, communities and visitors alike.”