| Township of White River Asset Management Project | Approved | — | — | $4K |
| Township of Wilmot Asset Management Project | Approved | — | — | $6K |
| Township of Woolwich Asset Management Project | Approved | — | — | $6K |
| Township of Zorra Asset Management Project | Approved | — | — | $5K |
| TR Léger Public Secondary Alternative School | Complete | State of Good Repair C03 | CW | $0 |
| Trail Construction and Rehabilitation | Approved | — | — | $17K |
| Transfer Station Efficiencies | Solid Waste Management Services | Service Improvement and Enhancement C04 | CW | $53 |
| Transform Yonge (Sheppard Avenue to Finch Avenue) | active | roads | — | $30K |
| Transformation of three Solid Waste Disposal Sites into Waste Transfer Stations | Approved | — | — | $637K |
| TRANSFORMERS AND SWITCHGEAR | Wastewater Program | Growth Related C05 | CW | $5K |
| Transit Priority Measures (Infrastructure) for Priority (Express) Bus Corridors | Planning | — | — | $12.6M |
| Transit Terminal Upgrades | Under construction | Legislated C02 | CW | $700K |
| Tremblay Station - O-Train Line | Complete | Service Improvement and Enhancement C04 | CW | — |
| Trent Child Care Bridgenorth | Complete | State of Good Repair C03 | CW | $200K |
| Trent River Public Elementary School | Complete | State of Good Repair C03 | CW | $12.1M |
| Trethewey Drive Cycling Connections & Intersection Safety Improvements | active | cycling | — | — |
| Tribune Drive Public Elementary School | Complete | State of Good Repair C03 | CW | $13.4M |
| TRL Renovation (SOGR) | Toronto Public Library | State of Good Repair C03 | 11 | $1K |
| TRUNK SEWER REHAB - CON | Wastewater Program | State of Good Repair C03 | CW | $11K |
| TSAM GENERAL | Solid Waste Management Services | State of Good Repair C03 | CW | $11K |
| TW - Fleet Replacement - 2034 | Fleet Services | State of Good Repair C03 | CW | $11K |
| TW - Fleet Replacement - 2034 | Fleet Services | State of Good Repair C03 | CW | $11K |
| Tweedsmuir Public Elementary School | Complete | State of Good Repair C03 | CW | $3.9M |
| Twenty Valley Public Elementary School | Complete | Legislated C02 | CW | $9.9M |
| Twp of North Dundas-Asset Management Project | Approved | — | — | $5K |
| Under the Rainbow Child Care Services | Complete | Service Improvement and Enhancement C04 | CW | $1.5M |
| Unified Communications: Calling in the Cloud | Technology Services | State of Good Repair C03 | CW | $6K |
| Union Station | Complete | State of Good Repair C03 | 10 | $0 |
| Union Station Revitalization | Active | Transportation | Toronto Centre | $640.0M |
| United Counties of Stormont, Dundas & Glengarry Asset Management Project | Approved | — | — | $13K |
| United Native Friendship | Complete | — | — | $2.8M |
| Université de l’Ontario français | Complete | — | — | $126.0M |
| University of Guelph - Investing in the Future of Health & Veterinary Science projects | Complete | Legislated C02 | CW | $37.6M |
| University of Ontario Institute of Technology (UOIT) - Software and Informatics Research Centre | Complete | Service Improvement and Enhancement C04 | CW | $0 |
| University of Ottawa - Learning Centre | Complete | Service Improvement and Enhancement C04 | 22 | $0 |
| University of Ottawa - Science, Technology, Engineering and Mathematics (STEM) complex | Complete | Legislated C02 | CW | $115.0M |
| University of Toronto - Centre for Engineering Innovation & Entrepreneurship | Complete | State of Good Repair C03 | CW | $99.9M |
| University of Toronto - Lab Innovation for Toronto (LIFT) Project | Complete | Service Improvement and Enhancement C04 | CW | $189.8M |
| University of Toronto at Mississauga - North Building Reconstruction | Complete | State of Good Repair C03 | 21 | $52.5M |
| University of Waterloo - Engineering 7 Building | Complete | Legislated C02 | CW | $0 |
| University of Windsor - Campus Redevelopment | Complete | Growth Related C05 | 03 | $83.6M |
| University of Windsor - Science Research And Innovation Facility | Complete | Service Improvement and Enhancement C04 | CW | $30.3M |
| Unnamed Coughlan PS | Under construction | — | — | $22.4M |
| Unnamed Village Parkway Elementary School | Planning | — | — | $28.1M |
| Upgrade and New Construction of Water Treatment Plant in West Elgin | Approved | — | — | $9.8M |
| Upgrade Local Road and Replace Culverts and Watermain Valves | Approved | — | — | $267K |
| Upgrade of Ansonia/Hopper Loop | Approved | — | — | $362K |
| Upgrade of Belle River Maidstone Water Pollution Control Plant | Approved | — | — | $2.1M |
| Upgrade of the Amherstview and Odessa Wastewater Systems | Approved | — | — | $4.1M |
| Upgrade of the Batawa Wastewater Treatment System | Approved | — | — | $596K |