All lanes of north Interstate 75 are back open this morning after being closed for more than six hours Thursday night into Friday morning.

The driver of a semitrailer that crashed Thursday night on Interstate 75 north near the North Main Street exit was helped out of the wreckage by another truck driver and other than some bumps and bruises, was reported to be OK.

The semi was headed to the Findlay location of Lowe's, the home and hardware store, when the crash occurred at about 10:30 p.m. An unknown amount of diesel fuel spilled and several cardboard boxes were tossed from the trailer onto the interstate, Dayton fire officials told News Center 7's Kate Bartley.

Fire officials said it was not immediately clear whether rain or speed contributed to the crash, which occurred in the construction zone of the highway. They used absorbent material on the roadway to help sop up fuel and oil that spilled in the crash.

The driver of the semi was not identified by name.

The semi hit a concrete median with such force that the median was dislodged and moved a few feet, firefighters said. The semi came to rest on its side, blocking every lane of traffic for a time. Fire officials said they were planning to open one lane sometime about midnight, but that was uncertain.

No other vehicles appeared to have been involved in the accident.

Nate Scolastico of Dayton, himself a truck driver, rescued the semi driver by pulling him out of the wreckage.

"Me and one other guy... we noticed the guy was fine, standing up inside the cab," Scolastico told News Center 7's Bartley. "I climbed up on the cab and got the door propped open."

Scolastico said the semi driver told him that the semitrailer, about a quarter-mile from where it crashed, began to sway. "The second time it swayed, he let it go and it flipped over on him," Scolastico said the driver told him.