I-35 at Hefner Rd. opened after semi accident that injured two

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Semi accident map

UPDATE: I-35 northbound at Hefner is back open after a semi accident that injured two early Friday morning.

OKLAHOMA CITY – An accident is backing up traffic on I-35 near Hefner Rd.

Crews have closed I-35 northbound on-ramp from Hefner Rd. and narrowed I-35 northbound to one lane after one semi truck rear-ended another.

The Oklahoma Dept. of Transportation said it expects the road closures to last through the morning rush hour.

Officials said the two drivers are being treated for minor injuries.