The bus was going about 20 mph when it struck the overpass Saturday morning, Chin said.
The bus model is commonly used for charters and tours, with the driver seated low to the ground and passenger seats in an elevated area behind the driver's seat.
Markings on the bus show it was owned by Miami Bus Service Corp.
Federal Motor Carrier Safety Administration records found online show the company has had no violations for unsafe driving or controlled substances and alcohol. It also had not reported any crashes in the two years before Oct. 26, 2012.
The records show it did receive three citations related to driver fatigue in April 2011.
The company owns three motor coaches, according to the records. Miami Bus Service Corp. officials did not immediately respond to a phone message Saturday.