A Maritime NZ spokesperson said it was too early to confirm why the barge capsized.
“Once we understand why this incident happened, Maritime NZ will work with the barge owners to ensure all reasonable steps are taken to prevent a recurrence.
“In the meantime, Maritime NZ has put a prohibition notice on the barge involved so it cannot be used.”
About 2.15pm on March 31, Bay of Plenty Regional Council staff were notified that a 30m long barge operating at the Bridge Marina had tipped, partially submerging a crane.
Tauranga Bridge Marina manager Tony Arnold said the barge had completed its contract at the marina and was leaving Tauranga when the incident occurred.