Work to clean the interior of the Squirrel Hill Tunnel on the Parkway East (I-376) in Pittsburgh will occur on Sunday, Monday and Tuesday nights, Aug. 19 to 21.

Single lane traffic will occur from 10 p.m. to 5 a.m. each night. Inbound (westbound) restrictions will occur Sunday night followed by outbound (eastbound) work Monday and Tuesday nights.    

Motorists are advised to use caution and allow extra time when traveling through the area. Visit 511pa.com or call 511 from any phone to check traffic conditions and cameras on major roadways before traveling.

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