PennDOT District 11 is announcing preservation work requiring a traffic shift on the Noblestown Road (Route 3048) bridge over Robinson Run in Collier Township, Allegheny County, will begin Tuesday, March 19 weather permitting.

Crews will begin work on a $3.54 million bridge preservation project on Noblestown Road at the I-79 Carnegie interchange.  Work includes deck and barrier repairs, expansion dam replacement, steel repairs, painting operations, milling, asphalt approach work, guiderail updates, curb work, sign replacement, and pavement markings.

Beginning at approximately 6 a.m. Tuesday morning, March 19 eastbound traffic on Noblestown Road will be shifted into the westbound lanes between 1st Street and Prestley Street.  A single-lane will be maintained in each direction in the westbound lanes as crews work on one half of the bridge.

Truck traffic from southbound I-79 to Noblestown Road at the Carnegie (Exit 57) interchange will be detoured.

Posted Detour

  • Trucks will continue southbound on I-79 past the Carnegie interchange
  • Take the Heidelberg/Collier (Exit 55) off-ramp
  • Turn left onto Route 50 (Washington Pike)
  • In Carnegie, Route 50 becomes East Main Street
  • Turn left onto Chestnut Street
  • Turn left onto Mansfield Avenue (Route 3048)
  • Mansfield Avenue becomes Noblestown Road
  • End detour

Mosites Construction is the prime contractor.  The overall project will conclude in late November.

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