The Railcorp and Wollongong City Council upgrade is designed to improve safety and traffic flow for motorists and pedestrians.
One lane of Railway Street will be closed at the level crossing until Sunday April 29, and traffic control will be in place.
RailCorp is working with Council to complete the upgrade and ensure the level crossing meets modern safety standards.
RailCorp General Manager Customer Service Pat Duffield said residents should avoid the area to minimise disruption. Pedestrian and cycle access will be maintained throughout the construction period.
The upgrade will include new automatic gates and a range of safety improvements such as flashing lights, warning bells, safety signage and improved lighting for pedestrians.
Wollongong City Council Director Infrastructure and Works Peter Kofod said Council have also carried out work in the area.
“Coinciding with RailCorp’s work earlier this year, Council has upgraded the footpath and pram ramp which provides access to the station and improved the kerb and gutters around the Railway Street station entrance,” Mr Kofod said.
“During this next stage, Council will install new fencing to improve pedestrian safety on all footpaths approaching the level crossing. We will also upgrade the adjacent footpaths on the northern side of Railway Street and undertake some road re- surfacing works near the level-crossing.”
Members of the community with any feedback or enquiries should call Transport Info on 131 500, or the Rail Greenline (24 hour hotline) on 1300 656 999.