One of the two ferry slips at the Steamship Authority terminal in Nantucket is out of commission after the M/V Eagle collided with and damaged the outermost dolphin, a cluster of pilings used to extend the berthing area.

The Eagle was pulling out of the north slip on its 5:30 p.m. run to Hyannis Saturday when the ferry’s port side came into contact with the pilings, according to a statement on the Steamship Authority website.

“The concrete ‘clump’ that sits atop the metal pilings forming the base of the dolphin became detached and fell into the water outside the perimeter of the vessel berth,” the SSA statement continues.

Arriving in Hyannis, the ferry was cleared to continue service after an inspection by crew members, who found no damage, and a consultation with the U.S. Coast Guard, according to the Steamship Authority statement.

“The authority is arranging for divers to inspect the pipe pilings on the dolphin to determine if any damage occurred under the water line of the structure and to determine the precise location of the concrete structure,” it continues.

There’s no scheduled timeline for reopening the north slip, the statement notes.

In the mean time, travelers should expect schedule delays on the high-speed passenger ferry M/V Iyanough, the SSA warns.

The incident is under investigation, according to the Steamship Authority website. Communications director Sean Driscoll had no further information Tuesday morning.