Buffalo Grove to contribute an estimated $132,024 to Deerfield Road improvements

Buffalo Grove will reimburse Lake County an estimated $132,024 for its share of engineering and construction costs tied to planned improvements on Deerfield Road, under an agreement adopted by the Lake County Board on June 9, 2026.

The project covers Deerfield Road from Illinois Route 21, also known as Milwaukee Avenue, to Saunders Road. The planned work includes roadway and intersection improvements, along with improvements for non-motorized travel.

Sidewalk and lighting changes included

The project will also require modifications to Buffalo Grove-owned infrastructure within the work limits. The village owns street lighting and sidewalk in the area, and both are identified for modification as part of the improvement agreement.

That puts the project’s scope beyond roadway pavement and intersections. The work is also intended to address facilities used by people walking and infrastructure that provides lighting along the Deerfield Road corridor.

The county resolution describes the project’s purpose as improving safety and the welfare of the traveling public. For Buffalo Grove, the estimated $132,024 reimbursement is a direct municipal cost associated with the engineering and construction work.

Construction anticipated in 2026

The Deerfield Road project is included in Lake County’s Transportation Improvement Program, the county framework for planned transportation work. Construction was anticipated to begin in 2026.

The adopted agreement does not set a firm construction start date, lane-closure schedule or completion date. It also does not state the project’s total cost. The $132,024 figure is Buffalo Grove’s estimated share, rather than an estimate of the full Deerfield Road project.

For people who drive, walk or use other non-motorized transportation along the stretch, the planned work could affect travel through the corridor once construction begins. Roadway and intersection changes may alter how traffic moves, while sidewalk and lighting modifications will affect facilities used by pedestrians.

Lake County’s adoption of the agreement advances the project and establishes Buffalo Grove’s estimated contribution to the work. The next identified milestone is construction anticipated during 2026, although the agreement does not identify the date work will start.