A semi transporting welding rods flipped over Thursday morning at Interstate 240 and Interstate 35, injuring at least one person.
The crash happened just before 8 a.m. The Oklahoma Highway Patrol closed the ramp from I-240 westbound to I-35 southbound for nearly four hours.
Oklahoma City firefighters had to extricate the driver of the 18-wheeler from the wreckage. It's not known how seriously the driver was hurt.
The crash also spilled some fuel and oil on the highway. It took crews several hours to clean up the wreckage. The ramp reopened at 11:45 a.m.