Mattingly was able to get out of the truck and retrieve her son from the interstate.
A medical helicopter took the child to Dayton Children’s Hospital in Ohio.
A medic squad took Mattingly, who is believed to have suffered injuries that were not life-threatening, to Reid Health in Richmond.
Trooper Scott Keegan, a crash reconstruction investigator, was sent to the scene to assist with the investigation that has kept the eastbound lanes of I-70 blocked since 9 p.m..
Troopers were expecting to have the road reopened by 11:30 p.m.
The crash investigation is ongoing, according to ISP.