The Department of Public Works announced today the schedule from tomorrow night through the morning of August 3 for closures of a portion of I-279 and the I-279/I-579 High Occupancy Vehicle (HOV) lanes in Pittsburgh, Ross, and Ohio Township. The closures are necessary to demolish Jacks Run Bridge No. 3, which carries Jacks Run Road over I-279 between Bellevue Road/Bellpark Drive and Kane Lane in Ross.
Saturday night (July 25) to Sunday morning (July 26)
- The right lane of I-279 northbound (outbound) under Jacks Run Road will be closed from 7 p.m. to 5 a.m.
- The I-279 North on-ramp from Cemetery Lane will be closed from 7 p.m. to 5 a.m.
Monday night (July 27) to Friday morning (July 31)
- I-279 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.
- I-279/I-579 HOV northbound (outbound) will be fully closed from 8 p.m. to 6 a.m. nightly.
- A single lane of I-279 southbound (inbound) under Jacks Run Road will be closed from 7 p.m. to 6 a.m. nightly.
Friday night (July 31) to Saturday morning (August 1)
- I-279 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 8 p.m. to 10 a.m.
- I-279 southbound (inbound) will be fully closed between the Camp Horne Road exit ramp (Exit 8) and the I-279 South entrance ramp from McKnight Road from 8 p.m. to 10 a.m.
- A single lane of I-279/I-579 HOV northbound (outbound) will be closed, and traffic at the McKnight Road exit will be diverted off the HOV from 7 p.m. to midnight. After midnight, the HOV will be fully closed until 6 a.m. on Monday, August 3.
Saturday night (August 1) to Sunday morning (August 2)
- I-279 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 7 p.m. to 10 a.m.
- I-279 southbound (inbound) will be fully closed between the Camp Horne Road exit ramp (Exit 8) and the I-279 South entrance ramp from McKnight Road from 7 p.m. to 10 a.m.
- I-279/I-579 HOV will be fully closed until 6 a.m. on Monday, August 3.
Sunday night (August 2) to Monday morning (August 3)
- I-279 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 6 p.m. to 5 a.m.
- I-279 southbound (inbound) will be fully closed between the Camp Horne Road exit ramp (Exit 8) and the I-279 South entrance ramp from McKnight Road from 6 p.m. to 5 a.m.
- I-279/I-579 HOV will be fully closed until 6 a.m. on Monday, August 3.
Additionally, the right-lane shoulder of I-279 northbound (outbound) under Jacks Run Road will be closed during daytime hours – 5 a.m. to 7 p.m. – Monday, July 27 through Friday, July 31.
This schedule is weather-dependent. Demolition work cannot take place during heavy rainfall or when lightning is in the area.
When the I-279 North on-ramp from Cemetery Lane is closed, traffic will be detoured using Perry Highway, Rochester Road, Lowries Run Road, and Camp Horne Road.
When I-279 northbound (outbound) is fully closed:
- I-279 northbound traffic will be detoured back to I-279 using McKnight Road, Babcock Boulevard, Rochester Road, Lowries Run Road, and Camp Horne Road.
- Union Avenue traffic to I-279 northbound will be detoured using Gass Road, Highland Avenue, Perry Highway, Rochester Road, Lowries Run Road, and Camp Horne Road.
- Cemetery Lane traffic to I-279 northbound will be detoured using Perry Highway, Rochester Road, Lowries Run Road, and Camp Horne Road.
When I-279 southbound (inbound) is fully closed:
- I-279 southbound traffic will be detoured back to I-279 using Camp Horne Road, Lowries Run Road, Rochester Road, Babcock Boulevard and McKnight Road.
- I-279 southbound traffic to Union Avenue in Ross will be detoured using Camp Horne Road, Lowries Run Road, Rochester Road, Perry Highway, Highland Avenue, and Gass Road.
- I-279 southbound traffic to Cemetery Lane in Ross will be detoured using Camp Horne Road, Lowries Run Road, Rochester Road, and Perry Highway.
Periodic closures of I‑279 and the I-279/I-579 HOV lanes are expected through August. A detailed schedule of closures for the following week will be released every Friday until the work is complete.
I-279 and the I-279/I-579 HOV lanes are maintained by the Pennsylvania Department of Transportation (PennDOT). The section of I-279 near Jacks Run Bridge No. 3 is used by an average of 73,367 vehicles daily.
Swank Construction Company of New Kensington is the primary construction contractor for the $2.8 million project, which began on April 27, 2026. The Federal Highway Administration (FHWA) is funding the entire project, and PennDOT is overseeing the federal funds.
Public Works closed Jacks Run Bridge No. 3 on July 3, 2025, after inspectors identified corrosion in the bridge’s only pier. The bridge carried an average of 4,631 vehicles daily. Construction of a new bridge will take place as a separate project that is expected to begin next year.