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Ontario Line
Under Construction
TransitWard Toronto Centre15.6 km rapid transit line from Exhibition Place to the Ontario Science Centre with 15 stations.
Successor to the Relief Line. Tunnelling began 2024. Current budget $19.2B, up from initial $10.9B estimate.
Original Approved
$10.9B
Current Approved
$10.9B
Budget Variance
$0(0.0%)
Budget Timeline
Project History
Jan 1, 2020
Original budget approved
$10.9B
Jan 1, 2022
Budget revised
+$6.5B (+59.6%)
Jan 1, 2024
Budget revised
+$1.8B (+10.3%)
Apr 2, 2026
Project tracked
Added to CivicLedger
Data Sources
No linked sources yet. Sources are matched automatically during data ingestion.
Last updated: 4/2/2026