The crane was mounted on a barge in the water and was being used to remove temporary supports from under the deck of the new self-anchored suspension span when it tipped over at about 12:15 p.m., MTC spokesman John Goodwin said.
No injuries had been reported as of shortly before 1 p.m., Goodwin said.
He said the fallen crane did not damage the structure of the bridge and is not expected to delay its scheduled Labor Day weekend opening.
