According to other drivers involved, there was an earlier two-car crash, and that's why people on the road were stopping.
The 18-wheeler driver told ABC13 he did not fall asleep. He says he just couldn't stop fast enough when someone cut him off.
WATCH: Dashcam video shows moment 18-wheeler slammed into vehicles
Herman confirmed a Precinct 4 deputy in his personal vehicle was involved in the crash.
Two children and an adult in a white Hyundai Accent were taken to the hospital with minor injuries.
At one point, all lanes were shut down but have since reopened.
Crazy 5-vehicle pile up....including @HCPrecinct4 deputy Constable car. @Pct4Constable says he’s hearing 18-wheeler driver may have fallen asleep at the wheel. #abc13 https://t.co/ZiBdyajHCC pic.twitter.com/WUN06OihJq— Courtney Fischer (@CourtneyABC13) June 3, 2019
UPDATE: this was an *11 vehicle pileup*—not 9. 2 children, 1 adult in this white car went to the hospital w minor injuries. Amazing no one was killed. #abc13 https://t.co/ZiBdyajHCC pic.twitter.com/mVdFIi5e07— Courtney Fischer (@CourtneyABC13) June 3, 2019