UPDATE: All lanes are now open.
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Three lanes of northbound Highway 99 near California Avenue is blocked by a big rig that jackknifed.
It happened just before 11:30 p.m. Wednesday night.
The California Highway Patrol and Bakersfield Fire Department responded.
The three right lanes of northbound Highway 99 just north of Highway 58 are blocked as crews work to get the big rig off of the road.
The highway 58 on ramp to northbound highway 99 is also blocked.
Officials said no injuries were reported.
Check back for updates on road conditions.