In September, NZ Transport Agency Waka Kotahi (NZTA) indicated they were considering options for a two-lane section of State Highway1, leaving Balclutha to the south.
At present, the 800m stretch of the highway up Rosebank Hill, between Hospital Rd and the Rosebank Lodge, allows vehicles to pass trucks slowed by the hill.
Only two further passing lanes exist on SH1 between the lodge and Clinton, 28km to the west.
In a report to Clutha District Council at the time, NZTA Otago senior structures network manager Michael Tannock said a lane reduction was being considered in order to save money.
However, NZTA said last week the single-laning was now unlikely to happen.
"Investigation and design work on this section of highway is continuing with a view to retaining the existing road layout," a spokesman said.
"We intend to have this completed in the second half of this year and start work in the next construction season, from October 2025 to March 2026."
Clutha Mayor Bryan Cadogan reacted with delight to the news, having spoken out against the potential change in September.
"We appreciate NZTA keeping an open mind, and we’re pleased it appears a change has been made to the planning for this critical passing lane.
"Really what this stretch of highway needs is standard maintenance.
"I know the district will appreciate the retention and improvement of this important part of our roading network," Mr Cadogan said.
During council discussions in September, concerns were raised about safety on that section of highway.
A report said the road had a history of defects.
"There is a history of the left lane developing defects and the site has been planned for repairs.
"The current passing lane would likely require extensive drainage work and pavement works to rebuild."
The report also said removing the left lane could move trucks further away from the pedestrian footpath and allow cars turning on to the highway to merge from the left safely.
