A portion of Interstate 10 has been reopened following the clean up of a semi wreck that left ash strewn across the highway.

The incident happened on I-10 in Chambers County in the greater Houston, Texas area.

According to ABC 13 News, the semi truck was traveling in the westbound lanes of I-10 near Highway 99 when, for unknown reasons, the rig lost control and crashed into a concrete barrier wall, ripping open the tanker trailer and spilling ash compound used for concrete all over the westbound lanes.

The unidentified truck driver was not seriously injured in the crash, but the exact reason for the incident is still under investigation.

Cleanup of the white powder took several hours, during which time the westbound lanes of I-10 were closed, forcing drivers to take the Highway 99 exit before reentering I-10. The westbound lanes have since been reopened, but traffic is expected to remain heavy in the area.

Officials have determined that the ash is not toxic and poses no health or environmental risks.