by Sarah DeMaranville
Geneseo Current
Drivers, pedestrians and businesses along West Main Street can expect a significant amount of construction in 2027 as the Illinois Department of Transportation prepares for a major improvement project through Geneseo.
The approximately $8.05 million project will cover US 6, or West Main Street, beginning about one-tenth of a mile west of Dilenbeck Drive and continuing east to South Oakwood Avenue.
Work will go well beyond simply putting down a new layer of asphalt. Plans include pavement repairs and resurfacing, ADA sidewalk improvements, traffic signal upgrades, parking improvements and adjustments to city utilities.
IDOT is the lead agency and will be responsible for surveying, necessary land acquisition, engineering design, bidding and construction inspection.
What will actually be done?
The roadway itself will undergo pavement patching, cold milling — removing a portion of the existing pavement surface — followed by a new hot-mix asphalt surface.
Sidewalk work will bring portions of the corridor into compliance with Americans with Disabilities Act standards, including improvements to pedestrian ramps.
Traffic signals will also be upgraded at Main Street and Illinois 82 and Main and State streets.
The project includes work on some city-owned areas as well. Two parking lanes along the south side of West Main Street between Main and Center streets will be resurfaced, along with the Geneseo City Park parking lot.
Underground infrastructure will require attention before the finished pavement goes down. Plans anticipate adjustments to 31 city water valves and 28 manholes within the project area.
What should residents expect in 2027?
The current schedule calls for construction to extend through essentially the entire 2027 construction season.
According to city documents, the contractor would typically begin with ADA improvements, followed by pavement patching, milling and finally the hot-mix asphalt overlay.
That sequence means residents shouldn't expect West Main Street to be torn up from Dilenbeck Drive to Oakwood Avenue all at once. Different types of work will take place along the corridor as the project progresses.
The documents provided to the City Council do not yet spell out detailed traffic-control stages, lane closures or specific access plans for individual businesses. Those details will become clearer after the contract is awarded and construction scheduling is finalized.
The current target for substantial completion is Nov. 24, 2027, with the contractor allowed an additional 10 days the following spring to finish landscaping and remaining punch-list work.
Who is paying for it?
Although the project is located within Geneseo, local taxpayers are not responsible for the majority of its $8.05 million estimated cost.
The current financial breakdown is:
Federal share: $6,354,116
State share: $1,561,247
City of Geneseo share: $134,637
Total: $8,050,000
That puts Geneseo's estimated share at about 1.7% of the overall project cost.
Most of the city's contribution is tied to improvements involving city-owned infrastructure or costs for which Geneseo is responsible.
The city's estimated share includes $31,000 for adjustments to 31 water valves, $42,000 for 28 manholes, $14,730 for resurfacing the City Park parking lot and $1,986 toward the parking lanes. Geneseo would also contribute 10% toward signal work at two intersections, pay for painting four signal posts and contribute $17,561 toward engineering costs.
Under the proposed agreement, Geneseo would pay 80% of its estimated share — $107,709.60 — when the construction contract is awarded. The remaining amount would be reconciled after completion based on actual project quantities and costs.
Who takes care of everything afterward?
The agreement also spells out which portions of the completed project will remain the responsibility of IDOT and which will fall to the city.
IDOT will continue maintaining the through traffic lanes, turn lanes, pavement markings and the curb and gutter or shoulders adjoining those lanes.
Geneseo will remain responsible for sidewalks and ADA ramps, parking lanes, the City Park parking lot, crosswalks, city-owned utilities, lighting, storm sewers and certain side-road approaches.
A major construction year for West Main Street
The project is scheduled for IDOT's November 2026 letting process, when contractors bid on the work. The city's agreement identifies construction throughout the 2027 season.
IDOT's broader multi-year highway program also identifies substantial investment in the US 6 corridor in and around Geneseo, including ADA improvements and pavement rehabilitation.
For residents, the simplest way to think about next year's project is this: West Main Street isn't just getting repaved.
The project combines road resurfacing with sidewalk accessibility work, upgraded traffic signals, underground utility adjustments and improvements to parking areas along one of Geneseo's primary east-west routes.
The tradeoff will be a lengthy construction season. While detailed lane-closure and traffic-control plans have not yet been provided, the current schedule indicates residents should expect construction activity along West Main Street for much of 2027 before the project wraps up late in the year.
