IL 78 resurfacing brings daytime lane closures through Farmington toward Canton

Daytime lane closures are affecting Illinois Route 78 through Farmington as a state resurfacing project continues toward Canton. The closures began June 16, 2026, and traffic impacts are expected to continue for the duration of the project, with completion anticipated in late September.

What the project covers

Under Illinois Department of Transportation Contract 68J68, the project runs from Fort Street in Farmington to 0.2 mile north of Alder Street in Canton. IDOT identifies the work as a Fulton County project covering approximately 7.63 miles of Illinois Route 78.

The work includes resurfacing and cold-in-place recycling. Contract documents also identify proposed four-foot shoulders, guardrail upgrades and related roadway, pavement-marking and traffic-control work. Those components are planned parts of the project, not indications that every improvement has already been completed.

What drivers should expect

A resident-facing construction notice reported that daytime lane closures began June 16 and that traffic impacts are expected throughout the project. Conditions may change as crews move through different portions of the Farmington-to-Canton corridor, so drivers should follow posted signs and check current construction information before traveling.

The approved project information does not establish a specific delay length or indicate that every closure is active at all times. Motorists should allow additional time for daytime trips and avoid assuming that conditions will be the same from one day to the next.

Why it matters in Farmington

IL 78 connects Farmington with Canton and is used by residents, commuters, freight operators, school transportation and businesses traveling along the corridor. Recurring daytime traffic control may affect trip planning, deliveries and service calls, including when work is outside Farmington’s central area.

The project is broader than a surface overlay because it also includes cold-in-place recycling, proposed shoulder work and guardrail upgrades. For people who regularly use IL 78 toward Canton, the practical issue is the possibility of changing traffic control and delays during the construction period.

IDOT’s project timeline calls for completion in late September 2026. Until then, Farmington-area travelers should expect construction activity and possible daytime delays along IL 78 toward Canton, while checking current notices before relying on the route.

Sources

• Illinois Department of Transportation Contract 68J68 detail
• Illinois Department of Transportation Contract 68J68 special provisions
• Travel Midwest construction notice