Allegheny County Paving Projects

Overview

The Allegheny County Department of Public Works maintains 408 miles of roadway and invests an average of about $19 million each year to improve county roads. The department’s goal is to repave at least 20 miles of roadway annually – a milestone it has reached every year since 2014.

Repaving county roads makes them safer, smoother, and more visually appealing for drivers, cyclists, and pedestrians. It also saves taxpayer money over time by reducing the need for small repairs, such as pothole patching, and by extending the time between major road reconstruction projects.

2026 Paving Plans

Public Works plans to repave 18 roads in 15 municipalities – about 22 miles of roadway – as well as five roads and driveways in county parks this year. A tentative paving schedule is available on this page.

Please note that there is always a chance that we will be forced to delay work on a specific road listed on this page until next year due to weather, equipment malfunctions, or unexpected work needed elsewhere.

Roads selected for repaving are chosen based on staff inspections and reports submitted by the public. If you notice a county road that may need repaving next year, please share your observations through the Allegheny County Support Center.

Ongoing and Upcoming Paving Project Locations

Traffic Restrictions

Paving work requires moving lane closures, and traffic is controlled by flaggers. Drivers should expect delays at work zones.

With limited exceptions, paving work on county roads occurs between 6 am and 6 pm on weekdays.

If you experience what you believe to be an unreasonable delay at a paving work zone, please contact Brent Wasko at 412-350-2451.

Public Works understands that traffic delays are inconvenient and greatly appreciates your patience and understanding as this important work is completed.

Paving Process

Public Works paving projects are completed using a combination of in-house crews and construction contractors.

Repaving begins with milling, during which a machine removes the top layer of asphalt and loads the material into dump trucks. A sweeper then clears any remaining debris.

Crews next repair the road base, as needed, to prevent existing issues from affecting the new surface.

A tack coat – a thin, sticky layer that helps new asphalt adhere – is then applied.

A paving machine then places and spreads hot asphalt to a uniform thickness, completing one lane at a time. The county’s paver uses an advanced grade-and-slope control system to remove surface irregularities and create a smoother roadway.

Rollers follow to further compact the asphalt and level the surface, and a protective seal coat is applied to joints and drainage structures.

Finally, temporary pavement markings are painted on the roadway. Permanent reflective markings are installed a few weeks later.