Hamilton city council will start later this month on work along Claudelands Bridge aimed at making it safer for cars, pedestrians and cyclists.
The work was to start on July 29, but was postponed pending the arrival of some key construction materials.
While some of the works could progress, it would mean the overall project would take longer than the expected six weeks and cause further disruption.
The project will introduce a slower speed limit the length of Claudelands Rd and new road markings to encourage people on bikes to share the road safely with motorists, freeing up the footpaths for pedestrians.
City transportation unit manager Jason Harrison said: "This is a new, bold initiative for our city and is a key way we are improving connectivity.