Sarnia’s residential streets have become an unofficial truck bypass as commercial vehicles flee lengthy backups on Highway 402, prompting a massive enforcement crackdown by local police. Nearly 350 violations have been issued this year as frustrated truckers abandon designated routes in an attempt to reach the Blue Water Bridge crossing to the U.S.
“They’ll divert through city streets and partially along east-west Exmouth Street,” said Sarnia Mayor Mike Bradley, who witnessed backups extending 20 kilometers along the highway this past weekend. “And I hear from truckers that they’re not happy when their peer group does that.”
Sarnia police report a 600% increase in sign disobedience violations compared to 2024’s first seven months. Officers have also issued nearly 150 charges for trucks operating without permits or using non-designated routes.
Multiple factors appear to be fueling the crisis. Highway construction has reduced 402 to a single lane in some sections. Officials also suspect tighter American border enforcement and a toll increase at the Ambassador Bridge between Windsor and Detroit may be redirecting traffic.
Local businesses are feeling the strain. “It’s creating operational challenges for some of our local businesses,” explained Carrie McCracken, CEO of the Sarnia-Lambton Chamber of Commerce. “We’ve got delayed shipments, missed delivery windows, reduced customer traffic.”
Staff Sgt. Jim McCabe of Sarnia Police describes the situation as “more than we can keep up with.” The problem is particularly acute on residential streets, where trucks attempting to avoid construction on Michigan Avenue get lost in neighborhoods.
Bradley has formally petitioned the Ministry of Transportation to intervene. Adding to the frustration, highway monitoring cameras have been offline for months, and temporary signs indicating backup times “never seem to reflect what the reality is,” according to the mayor.
The MTO responded that recent sign adjustments have been made and they’re working to “accelerate construction to minimize the overall timing and impact of the lane closures.”
As the backlog continues, the OPP is asking truckers to “be patient, plan ahead and factor in construction delays” before considering any shortcuts through residential Sarnia.