From first service Saturday, 29 August to last service Sunday, 30 August 2026, the Belair will be partially closed be temporarily closed between Adelaide Railway Station and Mitcham Railway Station to allow for works to be undertaken for the New Women's and Children's Hospital Project.
During the closure substitute buses will replace train services between Adelaide Railway Station and Mitcham Railway Station, with train services continuing to operate between Mitcham Railway Station and Belair Railway Station.
The following railway stations will not be serviced by train services, and passengers can access substitute bus services at the bus stop locations in the table below:
| Railway station | Substitute bus stop: Mitcham Railway Station to Adelaide Railway Station | Substitute bus stop: Adelaide Railway Station to Mitcham Station |
| Adelaide Railway Station | Stop D North Terrace - north side | |
| Mile End | Not serviced | |
| Adelaide Showground | Stop 2 Goodwood Rd - West side | Stop 2 Goodwood Rd - East side |
| Goodwood | Stop 4 Goodwood Rd - West side | Stop 4 Goodwood Rd - East side |
| Millswood | Stop 7 Goodwood Rd - West side | Stop 7 Goodwood Rd - East side |
| Unley Park | Stop 173 Cross Rd - north side | Stop 173 Cross Rd - south side |
| Mitcham | Stop 14 Belair Rd - west side | |
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Transfer between train services and substitute buses at Mitcham Station.
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Plan ahead, as rail substitute bus services may take longer than the regular train services and travel time will be increased.
Full line services will resume Monday, 31 August 2026.