The final lane that remains closed following last Tuesday's Ngauranga Gorge land slip is expected to reopen to traffic in time for today's Wellington peak.
The NZ Transport Agency said removal of all the residual rock material blocking the southbound lane of SH1 closest to the slip has been achieved, however further netting to secure the slip site will need to be attached in the coming days.
NZTA systems manager Mark Owen said the extra netting will be put up today or tomorrow outside of peak traffic hours, as weather permits.
"We're really pleased with the progress that's been made, with contractors working day and night to secure the slip site and keep people moving," Mr Owen said.
"In the next couple of days there will be some more short term full closures of the southbound lanes with rolling traffic control like we did on the weekend.
"This is a safety requirement to allow access for equipment to be dropped at the site."