Highway 401 and Highway 4 (Colonel Talbot Road) Interchange Reconfiguration
& Highway 4 (Colonel Talbot Road) and Glanworth Drive Bridge Replacements

Construction
The following sections will be updated weekly to reflect construction updates and traffic impacts.
Anticipated Work for the Next Month
September 14, 2025 to October 16, 2026:
Status of Work
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Interchange earth excavation, installation of clay fill, installation of granulars, sewers, culvers and underground electrical ongoing
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Colonel Talbot Road northbound lanes earth excavation, installation of clay fill, granulars, sewers and culverts, undergound electrical
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Tempo Road earth excavation and granulars, asphalt paving, pavement markings
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Topsoil and seeding ongoing while weather permits
COLONEL TALBOT ROAD IS CLOSED TO TRAFFIC FROM TEMPO ROAD TO GLANWORTH DRIVE UNTIL TUESDAY, NOVEMBER 27TH, 2026 AT 11:59 PM
Current Lane Closures - Week of September 21st, 2026
All interchange eastbound and westbound on and off ramps at Highway 401 and Colonel Talbot Road (Hwy 4) will be closed to all traffic
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Tuesday, April 7th, 2026 at 07:00 until Friday, November 27th, 2026 at 23:59
Highway 401 eastbound and westbound driving lane (L2) closure from 1.5 km west of to 1.5 km east of Colonel Talbot Road
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Monday, June 22nd, 2026 at 07:00 to Friday, November 6, 2026 at 23:59
Highway 4 (Colonel Talbot Road) will be closed to traffic from Tempo Road to Glanworth Drive
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Friday, September 11th, 2026 to Tuesday, November 10th, 2026 from 07:00 to 18:00 daily
***Please note that there will be a full closure of Highway 401 during the nighttime hours from October 17th to 18th weather permitting. More details will follow.***
The following section provides general information related to construction and does not change
SUMMARY OF CONSTRUCTION BY YEAR
2024 Construction Season:
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Construct median piers for new Highway 4 (Colonel Talbot Road) bridge
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Construct median piers abutments with approaches and install new girders for new Glanworth Drive bridge
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Construct High Mast Lighting (HML) and overhead sign (OHS) footings along Highway 401 median
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Reconstruct Highway 401 median storm sewer and sewer crossings
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Construct western realignment half of Tempo Road
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Commence realignment of Glanworth Drive and Littlewood Drive and construction of Littlewood Place
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Install HML
2025 Construction Season:
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Construct new Highway 4 (Colonel Talbot Road) bridge offline
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Construct abutments with approaches and install new girders for new Highway 4 bridge
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Construct the Tempo Road Realignment
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Construct new Glanworth Drive bridge and deck structure
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Complete construction of Littlewood Drive and Glanworth Drive realignments, Littlewood Drive and Littlewood Place
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Widen northern portion of Highway 4
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Remove existing Glanworth Drive bridge
2026 Construction Season:
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Construct new Highway 4 bridge deck and structure
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Complete widening and realignment of Highway 4 except surface course paving
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Construct new interchange ramps and speed change lanes
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Remove existing Highway 4 bridge
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Construct southbound lanes of Colonel Talbot Road
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Construct realignment of Burtwistle Lane
2027 Construction Season:
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Complete surface course paving and construction of raised median on Highway 4
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Complete surface course paving of interchange ramps
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Construct aesthetic monuments at Highway 4 Underpass
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Complete remaining portions of median tall wall barrier
