May 18, 2013 – (Left) Workers erect a large tent at Marina City’s Smith & Wollensky on Thursday. Four tents will cover the restaurant’s outdoor dining area at least through mid-July. The tents were first used in 2010 to protect patrons from potential debris from a nearby concrete restoration project.

(Below) Seen from the State Street Bridge, three tents are up in this image from mid-morning on Thursday. (Click on images to view larger versions.)