A tight fit, but state ferry ‘Sealth’ makes its way through the Ballard Locks (VIDEO)

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SEATTLE -- A very rare sight unfolded Monday as a ferry made its way through the Ballard Locks.

It was no easy task. The ferry Sealth is 328 feet long and 78 feet wide. That gave her only two feet of clearance in the locks.

She was carefully guided through the locks on her way to dry dock on Lake Union.

the 34-year-old Sealth needs some routine repairs and update that will take nearly two months.

Monday's move was rare because most ferries in the state's fleet are too big to fit through the Ballard Locks.