Boxes of vodka aboard a tractor-trailer that crashed on Woodhaven Road on December 7, 2017. @GormansGrowl

Boxes of vodka aboard a tractor-trailer that crashed on Woodhaven Road on December 7, 2017. @GormansGrowl

PHILADELPHIA, Pennsylvania -- An overturned tractor-trailer carrying bottles of vodka caused the closure of a busy ramp to I-95 in northeast Philadelphia.The ramp remained closed for hours while crews worked to clear the scene.The truck was carrying boxes of bottles of Tito's Vodka.It tipped onto its side just before 5 a.m. Thursday.Some boxes fell out of the truck and onto the roadway.It's not clear what caused the 18-wheeler to tip.