Grote Hall at UTC will reopen on Tuesday after a thorough inspection determined that a sinkhole posed no danger.
The campus building was closed on Monday with all classes cancelled.
But classes are back on for Tuesday and employees are to report.
Officials said the sinkhole was caused by a broken section of stormwater piping that serves the nearby Holt Hall.
It was found that the problem is limited to the grassy area between the two buildings.
Officials said a structural engineer "is confident of the structural integrity of the building."
Repairs to the damaged pipeline are expected to take several days.