Crews will be washing the Interstate-79/Neville Island Bridge in the area over Route 65 in Glenfield, according to PennDOT.
Short-term single lane and shoulder closures will occur from 9 a.m. to 3 p.m. as needed both days in both directions on Route 65. No restrictions will occur on I-79 at this time, PennDOT said.
Crews from Michael Facchiano Contracting, Inc. of Pittsburgh, PA, will perform the work.
Motorists are advised to use caution, slow down and expect changing traffic patterns when traveling through the area.