But the authority stopped using it three years ago to concentrate more on actual ferry operations.
During rainy months, high water levels and fast currents can stop ferry operations.
The director of ferry operations oversees everything from maintenance to crew training and discipline, city officials said.
The only transportation to the island is by boat, however, no commercial ferry operations are available.
"As we continue to move forward with plans to overhaul the ferry operation, this behavior simply will not be tolerated."
One is being conducted by the safety board with the aim of ensuring safe ferry operations.
The earliest dams were constructed to support ferry operations in low water.
The city began a wide-ranging examination of the ferry operation after the crash.
The ferry operations ran nearly continuously for 18 hours each day.
Original ferry operations also moved to the new pier.
