The work, between Waimataitai and Pringle St, will occur largely at night to avoid significant disruptions to daytime traffic.
Waka Kotahi South Canterbury senior network manager Scott McKenzie said work would continue through to the Christmas road work close-down period, which starts on December 20.
He said provided everything went to plan, the section of Evans St would be marked up and ready for pre-Christmas holiday traffic.
"Our contractor has already attempted to get the asphalting along this stretch of Evans St done but had to stop when traffic resumed due to poor ground conditions.
‘‘This time, we are using a different technique with a deeper layer of structural pavement strengthening. This approach should reduce risks and we have included further testing.
"Using this approach will take a little longer as we build up the layers of material beneath the surface before the asphalt layers at the end.
"We will be finishing the surface using a small stone asphalt for a quieter ride and less traffic noise for surrounding residents."
Work will mostly be taking place between 8pm and 6am, with the highway reduced to a single lane in places.
The work is weather-dependent so if it is wet, the section of seal may go into the New Year.