Work continued overnight to address damage in the Acton tunnel following yesterday's incident.
Westbound lanes on Parkes Way, leaving the city, remain closed between Clunies Ross Street and Edinburgh Avenue.
The eastbound lanes of Parkes Way through Acton tunnel have a 40 kilometre per hour speed limit in place. Motorists are urged to drive with extra care in the area. Delays are expected.
Motorists are urged to start planning their journey in anticipation of delays.
Westbound traffic leaving the city is being diverted right onto Coranderrk Street, left onto Cooyong Street, straight onto Barry Drive, left onto Clunies Ross Street, Lady Denman Drive and onto the Tuggeranong Parkway.
Traffic travelling westbound from Commonwealth Avenue, onto Parkes Way, is being directed straight through to London Circuit and Northbourne Avenue, left onto Barry Drive, left onto Clunies Ross Street, Lady Denman Drive and onto the Tuggeranong Parkway.
Disruptions are also expected to continue for ACTION services, although school services are not impacted.
ACTION's Route 81 which services the National Zoo and Aquarium, National Arboretum, Black Mountain Tower and the Australian National Botanic Gardens will be diverted via Clunies Ross Street instead of Parkes Way.
The bus stop at Edinburgh Avenue/Rydges Canberra (#4633) will not be serviced during this time by Routes 81, 718 and 719. The alternative bus stop for Route 81 is at the City bus station, Platform 9. The alternative bus stop for Routes 718 and 719 is at the City West bus station, Platform 1.
For up-to-date information on bus services call the ACTION bus information line on 13 17 10 or monitor ACTION's Twitter account @ACTIONbuses.