Montgomery County Sheriff's Office responded to reports of a major crash on the North Freeway around 11 a.m.
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Deputies say an 18-wheeler hit a bridge and split in half.
18-wheeler splits in half after crashing into bridge on I-45
The driver of the 18-wheeler told authorities there was a malfunction on his dump bed which caused it to rise up while he was driving.
The bed struck the Shepherd Hill overpass cracking the beam. The overpass was shut down for hours, but reopened Monday afternoon.
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