Road Closures in Niagara

Check below for a list of road closures in Niagara or see a full list of public notices.

The information below is also available in a map on Municipal511, Google Maps and Waze.


Location Type of closure Start date Estimated end date Description
Montrose Road from Grassy Brook Road to Lyons Creek Road Construction April 1, 2023 at 12 a.m. July 31, 2024 at 12 a.m. Road Widening and Reconstruction of RR 98 (Montrose) and RR 47 (Lyons Creek)/Biggar Rd
St Paul Street West from Leeper Street to Great Western Street Construction December 31, 2026 at 12 a.m. St. Catharines - Bridge Replacement - Detour is Regional Road 72 (Louth Street) > RR69 (Pelham Road)
Ontario Street from Linwell Road to Chapleau Gate Construction November 6, 2023 at 7 a.m. May 5, 2024 at 7 a.m. St. Catharines - Construct the new storm sewer outfalls and retaining wall - Detour is Linwell Road > Lakeport Road
Ontario Street from Greenlane to King Street Construction February 5, 2024 at 7 a.m. June 25, 2025 at 12 a.m. Lincoln - Ontario Street Sanitary and Watermain Replacement between Greenlane and King Street
Regional Road 45 from Diltz Road to Diltz Road Bridge Closure January 24, 2022 at 4 p.m. Bridge Closure - Town of Wainfleet - Oswego Bridge on Regional Road 45 (Creek Rd) is closed for further notifications.
Highway 405 from Stanley Avenue to Queen Elizabeth Way Emergency Detour Route April 23, 2024 at 3:13 p.m. June 30, 2024 at 12 a.m.
Lake Street from Welland Avenue Construction May 2, 2024 at 7 a.m. May 2, 2024 at 5 p.m. St. Catharines - Intersection Milling - Detour is Regional Road 42 (Ontario Street) > Regional Road 91 (Westchester Crescent) > Regional Road 46 (Geneva Street)
Riverside Drive from Lincoln Street to Prince Charles Drive North Load Restriction 5 tonnes per axle
Smithville Road from Bismark Road to South Chippawa Road Load Restriction 5 tonnes per axle
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