2025 London's Top 10 projects
Each year, the City undertakes construction projects to address the needs and lifecycle of London's infrastructure as part of Renew London.
Building a thriving, sustainable city for the future
London is on the move – growing and evolving rapidly and this year’s projects will continue laying the foundation for safer, more connected, and resilient infrastructure.
These infrastructure investments are more than just roads and pipes – they’re about creating opportunities for new residential and commercial developments, helping people move safely and efficiently, no matter how they choose to travel.
From new roads and bike lanes to enhanced transit facilities and underground infrastructure, London’s Renew Construction Program is helping shape the way we move while encouraging cleaner, emissions-free travel and making our city more sustainable for the generations to come.
2025 Projects
In 2025, work will continue to focus on essential investments to upgrade aging underground and surface infrastructure and add better connections for all through new transit lanes, bike and multi-use pathways, and roads.
By the numbers
Road improvements:
- 61 lane-kilometres of road to be reconstructed
- 25 intersections will be improved for safer connections
- 11 kilometres of new bike lanes will be installed
- 10 kilometres of new sidewalk will be added
Underground:
- 11+ kilometres of sanitary and storm sewers will be replaced or added
- 9+ kilometres of watermain will be replaced or added
About the City's top 10 Projects
Each year, the City identifies ten construction projects that have the largest benefits, impacts and scope of work.
The top 10 projects are selected based on the following criteria:
- Scope of work
- Construction duration
- Location in relation to other nearby projects and the expected future benefits
- Road classification
- Road user impact
- Transit impact
- Active transportation impacts
- Impact to neighbours
- Proximity to events, schools, community centres, parks, cycle routes
- Economic impact and government funding
Explore the 2025 Top 10 Projects
This year’s investments will bring major improvements across the city.
- Clark’s Bridge Widening
- East London Link Phase 3B: Highbury Bridge
- East London Link Phase 4: Oxford Street East
- Wellington Gateway Phases 3 & 4
- York Street Infrastructure Renewal
- London Downtown Sewer Capacity Expansion Project
- Sunningdale Road and Richmond Street Intersection Improvement
- Adelaide Street North Bridge Rehabilitation
- Colonel Talbot Two Lane Upgrades
- Bradley Avenue Road Extension
Clark's Bridge Widening (Wellington Gateway)
The Clark’s Bridge crosses the Thames River along Wellington Street/Road between South Street and Watson Street, and you may know it as the “Wellington Bridge.”
As part of the Wellington Gateway, this project is widening Clark’s Bridge to accommodate travel demand and future rapid transit operations, while improving walking and biking connections, and enhancing other transit and streetscape elements.
The new bridge will accommodate two general traffic lanes in each direction, two new transit-only lanes, and a multi-use pathway for people biking and walking on both sides of the bridge.
The enhancements to the bridge will also extend the service life of the structure and improve the safety and functionality of the bridge by 50 years before it has to be replaced.
Construction is underway and will continue through 2025, with some finishing work in 2026.
The benefits:
- Improved mobility and connectivity to transit
- Enhanced sidewalks and pedestrian crossings at intersections
- Centre-running bus lanes with priority signals to improve traffic capacity and safety
- New sewers and watermains to accommodate future growth
East London Link Phase 3B: Highbury Bridge
Improvements to the Highbury Avenue Bridge will be completed as part of the East London Link Phase 3.
The project includes the reconstruction and widening of Highbury Avenue from Dundas Street to the north limit of the Highbury Bridge / CPKC overpass to accommodate future rapid transit operations and road capacity.
Construction is underway and will continue through 2025 and 2026.
The benefits:
- The road widening will transform Highbury Avenue North from a 4-lane cross-section to a 6-lane cross-section, with a dedicated centre-running rapid transit lane in each direction (northbound and southbound)
- Sewer and watermain replacements
- New streetlighting and landscaping elements
East London Link Phase 4: Oxford Street East
The City of London will reconstruct Oxford Street from Highbury Avenue to a few metres east of Second Street as part of the East London Link Phase 4 project.
The project will add dedicated transit lanes and other rapid transit infrastructure on Oxford Street while addressing underground needs.
Construction of Phase 4 is anticipated to begin in spring 2025 and continue through 2025, with some finishing work in 2026.
The benefits:
- New centre-running bus lanes
- New rapid transit stops and upgrades to the local transit terminal at Fanshawe College
- New or upgraded active transportation facilities to enhance biking and walking connections on both sides of Oxford Street
- New trees and other landscaping and urban design elements
- Upgrade or repair aging underground infrastructure
Wellington Gateway Phase 3 & 4
The Wellington Gateway is the third rapid transit project to be constructed in London.
The project will add new streetscape elements as well as transportation and transit improvements above ground while repairing and replacing aging sewers, watermains and other underground infrastructure.
Construction of phases 3 and 4 is underway and continue through 2025, with some finishing work in 2026.
These phases of the Wellington Gateway project extend along Wellington Road from Wilkins Street to Harlech Gate (Phase 3) and between Harlech Gate and Greenfield Drive (Phase 4).
The benefits:
- Improved mobility and connectivity to transit
- Enhanced sidewalks and pedestrian crossings at intersections
- Centre-running bus lanes with priority signals to improve traffic capacity and safety
- Upgrades to underground infrastructure to accommodate future growth
- New multi-use pathway on the east side of Wellington Road
- Upgrades to signalized intersections
York Street Infrastructure Renewal
The project is replacing aging underground infrastructure while removing existing combined sewers.
Construction is underway and will continue through 2025, with some finishing work in spring 2026.
The benefits:
- New watermain and sanitary sewers
- New storm sewer installation
- Utility upgrades
- New sidewalks and the rehabilitation of the elevated sidewalks under the railway overpass
- Streetscape improvements
- New asphalt road surface
London Downtown Sewer Capacity Expansion Project
The City of London is planning to reconstruct the sanitary sewer siphon at the forks of the Thames River, which was constructed in 1935 and has reached the end of its useful life.
The project will replace the existing siphon with a new parallel siphon and connection to the upstream and downstream sanitary sewer systems.
Construction is planned to begin in spring/summer 2025 until approximately fall 2025, with some minor clean-up work in spring 2026.
The benefits:
- Provide a key opportunity to increase the capacity of the sanitary sewer system
- Accommodate upstream development and intensification, supporting the creation of future housing units
- Integrate a new connection with the high-level sanitary sewer system on King Street
- The sanitary siphon will be tunneled under the Thames River and will be the largest tunneling project completed to date in London
Sunningdale Road and Richmond Street Intersection Improvement
The project will improve and widen the Sunningdale Road and Richmond Street intersection to accommodate existing and future travel demand.
Construction is planned to begin in spring 2025 until approximately fall 2025, with some minor clean-up work in spring 2026.
The benefits:
- Improved mobility and safety for all road users
- Enhanced active transportation connections
- Improved safety and accessibility
- Upgrades to underground infrastructure to accommodate future growth
- New street lighting, traffic signals and streetscape
Adelaide Street North Bridge Rehabilitation
The project will rehabilitate the Adelaide Street North Bridge over the Thames River to extend the bridge service life by 30 years.
Active transportation facilities will be added to enhance biking and walking connections in the area as identified in the approved Thames Valley Parkway North Branch Connection Environmental Assessment Study.
A new multi-use pathway will be added along Windermere Road and Adelaide Street North connecting to the Thames Valley Parkway.
The new pathway is funded in part by the Federal Active Transportation Fund.
Construction is planned to begin in spring 2025 until approximately fall 2025.
The benefits:
- Extend the existing bridge life another three decades
- Improve active transportation connections by adding a new multi-use pathway across the bridge on the west side of Adelaide Street North
- The new Stoney Creek pathway will provide a new multi-use active transportation facility along Windermere Road and Adelaide Street North connecting to the Thames Valley Parkway
Colonel Talbot Two Lane Upgrades
The project is upgrading Colonel Talbot Road between Southdale Road West to James Street from the current 2-lane rural road with ditches and gravel shoulders to a 2-lane urban road with concrete curbs and gutter as identified in the City's 2019 Development Charges Study and later in the 2021 Development Charges Background Study Update.
Construction is underway and is anticipated to last until approximately fall 2025, with some minor clean-up work and asphalt paving in spring 2026.
The benefits:
- Improved mobility and comfort for all road users
- Complete sidewalks through the corridor to enhance pedestrian connections
- Improved safety and accessibility
- New sewers and watermains to accommodate future growth
- New street lighting, traffic signals and streetscape
- New turning lanes and localized medians
This project will also evaluate the Kilbourne Road intersection for future improvements.
Bradley Avenue Road Extension
The City of London is planning to extend Bradley Avenue from Wharncliffe Road South to the west leg of Jalna Boulevard.
The project will create a 4-lane ‘complete street’ with sidewalks, in-boulevard bike lanes, streetlighting and landscaping to support all modes of transportation and development in the area.
Construction is anticipated to begin in the summer 2025 until approximately fall 2026.
The benefits:
- New road construction of a new 4-lane road between Wharncliffe Road South and White Oak Road
- Road upgrade of existing Bradley Avenue from 2 to 4 lanes between White Oak Road and the west side of Jalna Boulevard
- Provide dedicated infrastructure to support multi-modal mobility and development in the area
- Upgrades to the stormwater management pond to increase new water volume and flow
- New dedicated bike paths and sidewalks
Impacts and mitigation
Construction can be challenging due to the significant work that is required to complete major infrastructure upgrades and improvements across the city.
The City of London is committed to supporting residents and businesses through this continued season of building and renewal.
On behalf of our project teams, thank you for your patience and cooperation while all this work is underway.
Tips for navigating construction in 2025:
- Plan ahead! Use navigation tools to plan your route in advance, especially during peak times.
- Give yourself some extra time and when possible, consider carpooling or travelling during off-peak times.
- Zipper merge when approaching reduced lanes instead of merging early. To zipper merge, fill both lanes, drive up to the end, and alternate safely.
- When taking the bus, check the LTC website for service updates and detours.
- If you’re biking or walking, keep an eye out for signage around construction zones – sometimes you may be required to dismount and walk, or there could be uneven surfaces.
- Follow the City of London on social media (@cityoflondonont) to stay up to date on road impacts and construction updates.
