The Arizona Department of Transportation says westbound lanes of I-10 were closed for about 40 minutes south of the Valley due to two crashes.
The crashes were in the area of Picacho, south of Eloy, near milepost 211 and 212.
The Department of Public Safety says four vehicles were involved in the crash near milepost 212, but no one has life-threatening injuries.
No injuries were reported in the second crash near milepost 211.
Traffic was reportedly backed up about four miles, with all traffic exiting at milepost 211.
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Westbound lanes reopened around 11:20 a.m.