I've seen that same airport construction a few times from I-480 and also wondered what was going on there. I did a quick google search and found -
http://www.newsnet5.com/dpp/news/loc...ar-growth-plan
"Expanded concourses, modernized terminals, ticketing and baggage screening areas. On Tuesday (4-19-11), Cleveland Mayor Frank Jackson and Airport Director Ricky Smith announced those projects, part of a plan to spend $1.6 billion over the next 24 years. The goal is to allow Cleveland Hopkins International Airport to keep up with a city that is pushing ahead with plans to draw more business and visitors.
The master plan, unveiled Tuesday at noon at the airport, also includes an expansion of the parking garage and construction of a new cargo and maintenance facility. The latter would allow the airport to handle more cargo planes and perform the maintenance on the aircraft without handing the work off to a third party. For travelers, the blueprint includes an off-site restaurant and gas station, and redevelopment of the present Sheraton Airport hotel."
Seems like they'll be working in the area for a while!!! Glad to see that someone is thinking ahead and getting the airport ready for the increased volume of travelers.

Better to do it now then to wait 5 years and wish it had been remodeled/expanded 5 years ago!!!