Final Phase of the Route 18 and Route 58 Intersection Project in Greenville, Mercer County to Restart Soon

Finishing work on the multi-year project to update and improve the intersection of Route 18 and Route 58 near Thiel College in Greenville Borough, Mercer County, is expected to start later this month.

The Route 18-Route 58 Improvement Project includes Route 18 from the intersection of Route 358 to the intersection with Mill Hill Road, and Route 58 from the intersection with Route 18 to East Craig Street. The purpose of the project is to improve pedestrian accessibility and safety as well as intersection efficiency throughout the corridor.

Work this year will include the final paving, painting roadway markers and lines, as well as landscaping, sidewalk, and ADA-compliant curb ramp updates.

Construction is scheduled to restart March 23, 2026, weather permitting, and to be completed by July 6, 2026.  

Drivers should be alert for traffic pattern shifts, lane restrictions, and traffic controlled by flaggers.

The contractor is Lindy Paving of New Galilee, PA. The contract cost is $7,976,304.25. The project is being funded predominately with state and federal funds. Thiel College will fund some improvements on the campus done in connection with the project.

Information on the Route 18-Route 58 Improvement Project is available online at www.pa.gov/DOTDistrict1 under the View District 1 Projects located at the top of the webpage.

PennDOT urges motorists to slow down when driving in work zones, and to be alert to changing conditions, avoid distractions and to pay attention to signs and flaggers. Drive responsibly in work zones for your safety and the safety of the workers.

Motorists can check conditions on major roadways by visiting www.511PA.com. 511PA, which is free and available 24 hours a day, provides traffic delay warnings, weather forecasts, traffic speed information and access to more than 1,000 traffic cameras.

511PA is also available through a smartphone application for iPhone and Android devices, by calling 5-1-1, or by following regional Twitter alerts accessible on the 511PA website.

Subscribe to PennDOT news and traffic alerts in Crawford, Erie, Forest, Mercer, Venango, and Warren counties at www.pa.gov/DOTDistrict1.  

Information about infrastructure in District 1, including completed work and significant projects, is available at www.penndot.pa.gov/D1Results. Find PennDOT’s planned and active construction projects at www.projects.penndot.gov.

Find PennDOT news for the northwest region on X or Facebook.

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MEDIA CONTACT: Jill Harry, 814-678-5035 or jharry@pa.gov