The driver of tractor was coming down the embankment and could not stop before going onto I-20.
The driver of the 18-wheeler said she saw the mower coming and slammed on the breaks, remaining in her lane, to avoid hitting the tractor's driver.
Both the driver of the 18-wheeler and the mower survived the accident unharmed.
As of 3:00 p.m., both eastbound lanes which had been closed due to cleanup have been reopened.
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