MIDVALE, Utah — A stretch of Interstate 15 closed after a semi-trailer carrying an explosive chemical overturned is beginning to reopen ahead of rush hour.

Officials say southbound lanes of I-15 in Midvale were reopened Wednesday afternoon as hazmat crews towed away the semi-trailer carrying the ammonium nitrate.

Northbound lanes weren’t immediately reopened in the area around 6400 South.

The multivehicle morning crash caused long delays on the highway, a major artery for the Salt Lake City metro area.

No one was hurt in the crash and the chemical didn’t leak, but the area was nevertheless evacuated because of the possible danger.

Ammonium nitrate is used in fertilizers and explosives.

VIAThe Associated Press
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