A tractor-trailer crash in Big Beaver has been cleared from westbound Pennsylvania Turnpike after shutting the highway between the Cranberry and New Castle exits this morning. According to PennDOT, the crash was reported shortly before 3 a.m. in Big Beaver. State police say the crash involved a tractor trailer and van; two people were injured and were flown to local hospitals. The 20-mile stretch of turnpike reopened shortly after 6:30 this morning. Traffic had been detouring at Cranberry exit 28 onto I-79 north to Route 422 west, I-376 east to Exit 26.