All lanes have since reopened yet delays of up to 15 minutes are still being reported between exit 36 and exit 40, police say.
An accident is being reported on I-78 westbound in Warren on Thursday afternoon.
A vehicle crash near Hidden Hollow Road has closed Morning Glory Road and will require a detour of traffic for the next 8 hours.
Reinman Road will be closed until midnight from Old Stirling Road to Saw Mill Road, Warren Police reported.
Somerset County will be repaving multiple roadways and also the walking paths at two county parks this month.
Breaking: Multiple roads across Somerset County are closed due to flooding on Monday.