The Allegheny County Department of Public Works will close a portion of I-279 southbound overnight next week as crews demolish Jacks Run Bridge No. 3 in Ross Township.
The highway will be fully closed between the Camp Horne Road exit ramp and the I-279 South entrance ramp from McKnight Road on four nights:
- 9 p.m. Monday through 5 a.m. Tuesday.
- 9 p.m. Wednesday through 5 a.m. Thursday.
- 9 p.m. Thursday through 5 a.m. Friday.
- 9 p.m. Friday through 5 a.m. Saturday.
A single-lane closure on I-279 southbound underneath the bridge will occur from 9 p.m. Tuesday to 5 a.m. Wednesday.
During the full closures, southbound traffic will be detoured using Camp Horne Road, Lowries Run Road, Rochester Road, Babcock Boulevard and McKnight Road to return to I-279…