A woman walked from the eastbound ramp at 91st Avenue, crossed over all five lanes on I-10 and climbed over the median into the westbound lanes.
After she crossed over the median, officials say a car in the HOV lane couldn't stop in time and hit her.
Amazingly, the woman was not critically hurt, however, she was taken to a hospital for treatment.
While Tolleson police were investigating the scene, a second car came up behind the patrol car and bumped it.
No one was hurt in the second crash.
Authorities do not know why the woman decided to walk onto the freeway.