Planned overnight closures target Jacks Run Bridge No. 3 demolition
The Allegheny County Department of Public Works announced Friday that portions of the Parkway North will be closed overnight next week to allow demolition of Jacks Run Bridge No. 3, which carries Jacks Run Road over the expressway between Bellevue Road/Bellpark Drive and Kane Lane in Ross.
The closures will affect motorists in Pittsburgh and neighboring Ross and Ohio townships. County officials said the work is weather-dependent and cannot proceed during heavy rainfall.
- When: Monday night, July 20, through Friday morning, July 24 (overnight work each night); extended closure Friday night, July 24, into Saturday morning, July 25, timed around the Pittsburgh Pirates game at PNC Park.
- Why: Demolition of Jacks Run Bridge No. 3 over the Parkway North.
- Who: Allegheny County Department of Public Works directing traffic impacts.
"The parkway northbound (outbound) will be fully closed between the McKnight Road/Evergreen Road exit ramp (Exit 4) and the I-279 North on-ramp from Camp Horne Road from 9 p.m. to 5 a.m. nightly."
Closures and expected impacts
Drivers should expect full and partial closures of both northbound and southbound lanes at different times. The county laid out the nightly pattern and a modified schedule surrounding the Pirates game on Friday, July 24.
| Period | Key closures |
|---|---|
| Mon night (July 20)–Fri morning (July 24) | Northbound fully closed between McKnight/Evergreen (Exit 4) and I-279 N on-ramp from Camp Horne Road (9 p.m.–5 a.m.). I-579 HOV northbound closed 8 p.m.–6 a.m. Left lane of southbound closed under Jacks Run Road 7 p.m.–6 a.m. |
| Fri night (July 24)–Sat morning (July 25) | Northbound fully closed between McKnight/Evergreen (Exit 4) and the Camp Horne on-ramp from one hour after the Pirates game ends (or 9 p.m. if postponed) to 9 a.m. I-579 HOV northbound closed from one hour after the game ends (or 8 p.m. if postponed) to 10 a.m. Left lane of I-279 southbound under Jacks Run Road closed 7 p.m.–9 a.m. |
The schedule means commuters who usually use Exit 4 or the Camp Horne ramps should plan alternate routes or adjust travel times during the overnight windows. The county's use of the postgame window on Friday night is intended to reduce daytime disruption but will lengthen the closure into Saturday morning.
Local stakes and context
Parkway closures in Pittsburgh carry ripple effects across Allegheny County: detoured traffic increases load on surface streets and other highways during the closure windows, and overnight work can create delays for shift workers and freight movement. The demolition of Jacks Run Bridge No. 3 is a discrete phase of broader infrastructure work that county crews have scheduled to limit daytime congestion while performing necessary, safety-critical work.
Motorists are advised to consult Allegheny County Department of Public Works updates and monitor local traffic reports for any weather-related changes to the timetable.
