PORTLAND – The city has a new – but temporary – addition to its skyline.

A tug pulling a barge that’s carrying part of a new processing plant from Texas to Newfoundland is tied up at the Maine State Pier to ride out rough weather at sea. The metal structure is about eight stories tall.

City officials said the operator of the tug/barge hasn’t said how long it will remain tied up at the pier. They said Portland charges $2.10 a foot – horizontal, not vertical – per day for vessels that tie up at the city-owned pier.