This aluminum stationery platform system is located at the Maine State Pier in Portland, Maine. It is used in place of steps for disembarking cruise ship passengers to access information about things to do while ashore in Portland.
Bar Harbor, ME, municipal pier
It consists of two 4.5' wide gangways one 25' in length and one at 16' in length.

There are also two platforms, the lower one is 6' wide and 1'9" long the upper is 6' square.